state stringlengths 0 159k | srcUpToTactic stringlengths 387 167k | nextTactic stringlengths 3 9k | declUpToTactic stringlengths 22 11.5k | declId stringlengths 38 95 | decl stringlengths 16 1.89k | file_tag stringlengths 17 73 |
|---|---|---|---|---|---|---|
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F'✝ : Filtration I M
h : Stable F
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
hF : Submodule.FG (Filtration.submodule F)
F' : Filtration I M
hf : F' ≤ F
this : IsNoetherian ↥(reesAlgebra I) ↥(Filtration.submodule F)
⊢ S... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [isNoetherian_submodule] at this | theorem Stable.of_le [IsNoetherianRing R] [Module.Finite R M] (hF : F.Stable)
{F' : I.Filtration M} (hf : F' ≤ F) : F'.Stable := by
rw [← submodule_fg_iff_stable] at hF ⊢
any_goals intro i; exact IsNoetherian.noetherian _
have := isNoetherian_of_fg_of_noetherian _ hF
| Mathlib.RingTheory.Filtration.405_0.wQ6WBws0g3n9213 | theorem Stable.of_le [IsNoetherianRing R] [Module.Finite R M] (hF : F.Stable)
{F' : I.Filtration M} (hf : F' ≤ F) : F'.Stable | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F'✝ : Filtration I M
h : Stable F
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
hF : Submodule.FG (Filtration.submodule F)
F' : Filtration I M
hf : F' ≤ F
this : ∀ s ≤ Filtration.submodule F, Submodule.FG s
⊢ Submodule.FG... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | exact this _ (OrderHomClass.mono (submoduleInfHom M I) hf) | theorem Stable.of_le [IsNoetherianRing R] [Module.Finite R M] (hF : F.Stable)
{F' : I.Filtration M} (hf : F' ≤ F) : F'.Stable := by
rw [← submodule_fg_iff_stable] at hF ⊢
any_goals intro i; exact IsNoetherian.noetherian _
have := isNoetherian_of_fg_of_noetherian _ hF
rw [isNoetherian_submodule] at this
| Mathlib.RingTheory.Filtration.405_0.wQ6WBws0g3n9213 | theorem Stable.of_le [IsNoetherianRing R] [Module.Finite R M] (hF : F.Stable)
{F' : I.Filtration M} (hf : F' ≤ F) : F'.Stable | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
⊢ x ∈ ⨅ i, I ^ i • ⊤ ↔ ∃ r, ↑r • x = x | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
| Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
⊢ x ∈ ⨅ i, I ^ i • ⊤ ↔ ∃ r, ↑r • x = x | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right.mpr ((iInf_le _ k).trans <| le_of_eq <| by simp) | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
| Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
k : ℕ
⊢ I ^ k • ⊤ = Filtration.N (stableFiltration I ⊤) k | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | simp | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
⊢ x ∈ ⨅ i, I ^ i • ⊤ ↔ ∃ r, ↑r ... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | constructor | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mp
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
⊢ x ∈ ⨅ i, I ^ i • ⊤ → ... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | obtain ⟨r, hr₁, hr₂⟩ :=
Submodule.exists_mem_and_smul_eq_self_of_fg_of_le_smul I N (IsNoetherian.noetherian N) (by
obtain ⟨k, hk⟩ := (I.stableFiltration_stable ⊤).inter_right (I.trivialFiltration N)
have := hk k (le_refl _)
rw [hN, hN] at this
exact le_of_eq this.symm) | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
⊢ N ≤ I • N | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | obtain ⟨k, hk⟩ := (I.stableFiltration_stable ⊤).inter_right (I.trivialFiltration N) | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
k : ℕ
hk :
∀ n ≥ k... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | have := hk k (le_refl _) | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
k : ℕ
hk :
∀ n ≥ k... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [hN, hN] at this | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
k : ℕ
hk :
∀ n ≥ k... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | exact le_of_eq this.symm | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mp.intro.intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : R
hr₁ :... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | intro H | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mp.intro.intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : R
hr₁ :... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | exact ⟨⟨r, hr₁⟩, hr₂ _ H⟩ | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
⊢ (∃ r, ↑r • x = x) → ... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rintro ⟨r, eq⟩ | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq : ↑r •... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [Submodule.mem_iInf] | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq : ↑r •... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | intro i | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq : ↑r •... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | induction' i with i hi | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro.zero
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq :... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | simp | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro.succ
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq :... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [Nat.succ_eq_one_add, pow_add, ← smul_smul, pow_one, ← eq] | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
case mpr.intro.succ
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : Module.Finite R M
x : M
N : Submodule R M := ⨅ i, I ^ i • ⊤
hN : ∀ (k : ℕ), Filtration.N (stableFiltration I ⊤ ⊓ trivialFiltration I N) k = N
r : ↥I
eq :... | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | exact Submodule.smul_mem_smul r.prop hi | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x := by
let N := (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M)
have hN : ∀ k, (I.stableFiltration ⊤ ⊓ I.trivialFiltration N).N k = N :=
fun k => inf_eq_right... | Mathlib.RingTheory.Filtration.434_0.wQ6WBws0g3n9213 | theorem Ideal.mem_iInf_smul_pow_eq_bot_iff [IsNoetherianRing R] [Module.Finite R M] (x : M) :
x ∈ (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) ↔ ∃ r : I, (r : R) • x = x | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
⊢ ⨅ i, I ^ i • ⊤ = ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [eq_bot_iff] | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
| Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
⊢ ⨅ i, I ^ i • ⊤ ≤ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | intro x hx | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
rw [eq_bot_iff]
| Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
x : M
hx : x ∈ ⨅ i, I ^ i • ⊤
⊢ x ∈ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | obtain ⟨r, hr⟩ := (I.mem_iInf_smul_pow_eq_bot_iff x).mp hx | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
rw [eq_bot_iff]
intro x hx
| Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
x : M
hx : x ∈ ⨅ i, I ^ i • ⊤
r : ↥I
hr : ↑r • x = x
⊢ x ∈ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | have := LocalRing.isUnit_one_sub_self_of_mem_nonunits _ (LocalRing.le_maximalIdeal h r.prop) | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
rw [eq_bot_iff]
intro x hx
obtain ⟨r, hr⟩ := (I.mem_iInf_smul_pow_eq_bot_iff x).mp hx
| Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
x : M
hx : x ∈ ⨅ i, I ^ i • ⊤
r : ↥I
hr : ↑r • x = x
this : IsUnit (1 - ↑r)
⊢ x ∈ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | apply this.smul_left_cancel.mp | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
rw [eq_bot_iff]
intro x hx
obtain ⟨r, hr⟩ := (I.mem_iInf_smul_pow_eq_bot_iff x).mp hx
have := LocalRing.isUnit_one_sub_self_of_mem_nonunits _ (L... | Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁵ : CommRing R
inst✝⁴ : AddCommGroup M
inst✝³ : Module R M
I : Ideal R
F F' : Filtration I M
inst✝² : IsNoetherianRing R
inst✝¹ : LocalRing R
inst✝ : Module.Finite R M
h : I ≠ ⊤
x : M
hx : x ∈ ⨅ i, I ^ i • ⊤
r : ↥I
hr : ↑r • x = x
this : IsUnit (1 - ↑r)
⊢ (1 - ↑r) • x = (1 - ↑r) • 0 | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | simp [sub_smul, hr] | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ := by
rw [eq_bot_iff]
intro x hx
obtain ⟨r, hr⟩ := (I.mem_iInf_smul_pow_eq_bot_iff x).mp hx
have := LocalRing.isUnit_one_sub_self_of_mem_nonunits _ (L... | Mathlib.RingTheory.Filtration.457_0.wQ6WBws0g3n9213 | theorem Ideal.iInf_pow_smul_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R]
[Module.Finite R M] (h : I ≠ ⊤) : (⨅ i : ℕ, I ^ i • ⊤ : Submodule R M) = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : LocalRing R
h : I ≠ ⊤
⊢ ⨅ i, I ^ i = ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | convert I.iInf_pow_smul_eq_bot_of_localRing (M := R) h | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
| Mathlib.RingTheory.Filtration.467_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
case h.e'_2.h.e'_4.h
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : LocalRing R
h : I ≠ ⊤
x✝ : ℕ
⊢ I ^ x✝ = I ^ x✝ • ⊤ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | ext i | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
convert I.iInf_pow_smul_eq_bot_of_localRing (M := R) h
| Mathlib.RingTheory.Filtration.467_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
case h.e'_2.h.e'_4.h.h
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : LocalRing R
h : I ≠ ⊤
x✝ : ℕ
i : R
⊢ i ∈ I ^ x✝ ↔ i ∈ I ^ x✝ • ⊤ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [smul_eq_mul, ← Ideal.one_eq_top, mul_one] | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
convert I.iInf_pow_smul_eq_bot_of_localRing (M := R) h
ext i
| Mathlib.RingTheory.Filtration.467_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian local rings. -/
theorem Ideal.iInf_pow_eq_bot_of_localRing [IsNoetherianRing R] [LocalRing R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
⊢ ⨅ i, I ^ i = ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | rw [eq_bot_iff] | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
| Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
⊢ ⨅ i, I ^ i ≤ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | intro x hx | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
| Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
⊢ x ∈ ⊥ | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | by_contra hx' | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
| Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
hx' : x ∉ ⊥
⊢ False | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | have := Ideal.mem_iInf_smul_pow_eq_bot_iff I x | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
by_contra hx'
| Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
hx' : x ∉ ⊥
this : x ∈ ⨅ i, I ^ i • ⊤ ↔ ∃ r, ↑r • x = x
⊢ False | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | simp_rw [smul_eq_mul, ← Ideal.one_eq_top, mul_one] at this | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
by_contra hx'
have := Ideal.mem_iInf_smul_pow_eq_bot_iff I x
| Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
hx' : x ∉ ⊥
this : x ∈ ⨅ i, I ^ i ↔ ∃ r, ↑r * x = x
⊢ False | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | obtain ⟨r, hr⟩ := this.mp hx | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
by_contra hx'
have := Ideal.mem_iInf_smul_pow_eq_bot_iff I x
simp_rw [smul_eq_mul, ← Ideal.one_eq_to... | Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
hx' : x ∉ ⊥
this : x ∈ ⨅ i, I ^ i ↔ ∃ r, ↑r * x = x
r : ↥I
hr : ↑r * x = x
⊢ False | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | have := mul_right_cancel₀ hx' (hr.trans (one_mul x).symm) | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
by_contra hx'
have := Ideal.mem_iInf_smul_pow_eq_bot_iff I x
simp_rw [smul_eq_mul, ← Ideal.one_eq_to... | Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
case intro
R M : Type u
inst✝⁴ : CommRing R
inst✝³ : AddCommGroup M
inst✝² : Module R M
I : Ideal R
F F' : Filtration I M
inst✝¹ : IsNoetherianRing R
inst✝ : IsDomain R
h : I ≠ ⊤
x : R
hx : x ∈ ⨅ i, I ^ i
hx' : x ∉ ⊥
this✝ : x ∈ ⨅ i, I ^ i ↔ ∃ r, ↑r * x = x
r : ↥I
hr : ↑r * x = x
this : ↑r = 1
⊢ False | /-
Copyright (c) 2022 Andrew Yang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Andrew Yang
-/
import Mathlib.RingTheory.Ideal.LocalRing
import Mathlib.RingTheory.Noetherian
import Mathlib.RingTheory.ReesAlgebra
import Mathlib.RingTheory.Finiteness
import Mathlib.Dat... | exact I.eq_top_iff_one.not.mp h (this ▸ r.prop) | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ := by
rw [eq_bot_iff]
intro x hx
by_contra hx'
have := Ideal.mem_iInf_smul_pow_eq_bot_iff I x
simp_rw [smul_eq_mul, ← Ideal.one_eq_to... | Mathlib.RingTheory.Filtration.475_0.wQ6WBws0g3n9213 | /-- **Krull's intersection theorem** for noetherian domains. -/
theorem Ideal.iInf_pow_eq_bot_of_isDomain [IsNoetherianRing R] [IsDomain R] (h : I ≠ ⊤) :
⨅ i : ℕ, I ^ i = ⊥ | Mathlib_RingTheory_Filtration |
x : ℚ
⊢ 0 ≤ x ↔ x ∈ AddSubmonoid.closure (Set.range fun s => star s * s) | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩ | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
| Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : x ∈ AddSubmonoid.closure (Set.range fun s => star s * s)
⊢ ∀ x ∈ Set.range fun s => star s * s, 0 ≤ x | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | rintro - ⟨s, rfl⟩ | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
case intro
x : ℚ
hx : x ∈ AddSubmonoid.closure (Set.range fun s => star s * s)
s : ℚ
⊢ 0 ≤ (fun s => star s * s) s | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | exact mul_self_nonneg s | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : 0 ≤ x
⊢ x ∈ AddSubmonoid.closure (Set.range fun s => star s * s) | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | suffices
(Finset.range (x.num.natAbs * x.den)).sum
(Function.const ℕ ((1 : ℚ) / x.den * ((1 : ℚ) / x.den))) =
x
by exact this ▸ sum_mem fun n _ => AddSubmonoid.subset_closure ⟨_, rfl⟩ | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩
/- If `x = p / q`, then, since `0 ≤ x`,... | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : 0 ≤ x
this : Finset.sum (Finset.range (Int.natAbs x.num * x.den)) (Function.const ℕ (1 / ↑x.den * (1 / ↑x.den))) = x
⊢ x ∈ AddSubmonoid.closure (Set.range fun s => star s * s) | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | exact this ▸ sum_mem fun n _ => AddSubmonoid.subset_closure ⟨_, rfl⟩ | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩
/- If `x = p / q`, then, since `0 ≤ x`,... | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : 0 ≤ x
⊢ Finset.sum (Finset.range (Int.natAbs x.num * x.den)) (Function.const ℕ (1 / ↑x.den * (1 / ↑x.den))) = x | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | simp only [Function.const_apply, Finset.sum_const, Finset.card_range, nsmul_eq_mul] | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩
/- If `x = p / q`, then, since `0 ≤ x`,... | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : 0 ≤ x
⊢ ↑(Int.natAbs x.num * x.den) * (1 / ↑x.den * (1 / ↑x.den)) = x | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | rw [← Int.cast_ofNat, Int.ofNat_mul, Int.coe_natAbs,
abs_of_nonneg (num_nonneg_iff_zero_le.mpr hx), Int.cast_mul, Int.cast_ofNat] | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩
/- If `x = p / q`, then, since `0 ≤ x`,... | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
x : ℚ
hx : 0 ≤ x
⊢ ↑x.num * ↑x.den * (1 / ↑x.den * (1 / ↑x.den)) = x | /-
Copyright (c) 2023 Jireh Loreaux. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jireh Loreaux
-/
import Mathlib.Algebra.Star.Order
import Mathlib.Data.Rat.Lemmas
import Mathlib.Data.Rat.Order
import Mathlib.GroupTheory.Submonoid.Membership
#align_import data.rat.s... | rw [← mul_assoc, mul_assoc (x.num : ℚ), mul_one_div_cancel (Nat.cast_ne_zero.mpr x.pos.ne'),
mul_one, mul_one_div, Rat.num_div_den] | instance : StarOrderedRing ℚ :=
StarOrderedRing.ofNonnegIff (fun {_ _} => add_le_add_left) fun x => by
refine'
⟨fun hx => _, fun hx =>
AddSubmonoid.closure_induction hx (by rintro - ⟨s, rfl⟩; exact mul_self_nonneg s) le_rfl
fun _ _ => add_nonneg⟩
/- If `x = p / q`, then, since `0 ≤ x`,... | Mathlib.Data.Rat.Star.30_0.tRpObn3UXJ6ySXp | instance : StarOrderedRing ℚ | Mathlib_Data_Rat_Star |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
⊢ fourierCoeff (Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.addRight (n • 1)))) 1))
m =
𝓕 ⇑f ↑m | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | let e : C(ℝ, ℂ) := (fourier (-m)).comp ⟨((↑) : ℝ → UnitAddCircle), continuous_quotient_mk'⟩ | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
⊢ fourierCoeff (Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖(e * g).restrict K‖ = ‖g.restrict K‖ := by
have : ∀ x : ℝ, ‖e x‖ = 1 := fun x => abs_coe_circle (AddCircle.toCircle (-m • x))
intro K g
simp_rw [norm_eq_iSup_norm, restrict_apply, mul_apply, norm_mul, this, one_mul] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
⊢ ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖ContinuousM... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have : ∀ x : ℝ, ‖e x‖ = 1 := fun x => abs_coe_circle (AddCircle.toCircle (-m • x)) | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
this : ∀ (x : ℝ), ‖e x‖ = 1
⊢ ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict ... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | intro K g | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
this : ∀ (x : ℝ), ‖e x‖ = 1
K : Compacts ℝ
g : C(ℝ, ℂ)
⊢ ‖ContinuousMap.restrict (↑K) (e... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [norm_eq_iSup_norm, restrict_apply, mul_apply, norm_mul, this, one_mul] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have eadd : ∀ (n : ℤ), e.comp (ContinuousMap.addRight n) = e := by
intro n; ext1 x
have : Periodic e 1 := Periodic.comp (fun x => AddCircle.coe_add_period 1 x) (fourier (-m))
simpa only [mul_one] using this.int_mul n x | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | intro n | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | ext1 x | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have : Periodic e 1 := Periodic.comp (fun x => AddCircle.coe_add_period 1 x) (fourier (-m)) | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simpa only [mul_one] using this.int_mul n x | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | calc
fourierCoeff (Periodic.lift <| f.periodic_tsum_comp_add_zsmul 1) m =
∫ x in (0 : ℝ)..1, e x * (∑' n : ℤ, f.comp (ContinuousMap.addRight n)) x := by
simp_rw [fourierCoeff_eq_intervalIntegral _ m 0, div_one, one_smul, zero_add, comp_apply,
coe_mk, Periodic.lift_coe, zsmul_one, smul_eq_mul]
... | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [fourierCoeff_eq_intervalIntegral _ m 0, div_one, one_smul, zero_add, comp_apply,
coe_mk, Periodic.lift_coe, zsmul_one, smul_eq_mul] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [coe_mul, Pi.mul_apply,
← ContinuousMap.tsum_apply (summable_of_locally_summable_norm hf), tsum_mul_left] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | refine' (intervalIntegral.tsum_intervalIntegral_eq_of_summable_norm _).symm | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | convert hf ⟨uIcc 0 1, isCompact_uIcc⟩ using 1 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_5
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | exact funext fun n => neK _ _ | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp only [ContinuousMap.comp_apply, mul_comp] at eadd ⊢ | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [eadd] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | suffices Integrable (e * f) from this.hasSum_intervalIntegral_comp_add_int.tsum_eq | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | apply integrable_of_summable_norm_Icc | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case hf
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | convert hf ⟨Icc 0 1, isCompact_Icc⟩ using 1 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_5
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [mul_comp] at eadd ⊢ | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_5
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simp_rw [eadd] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_5
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | exact funext fun n => neK ⟨Icc 0 1, isCompact_Icc⟩ _ | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rw [fourierIntegral_eq_integral_exp_smul] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖ = ‖Continu... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | congr 1 with x : 1 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case e_f.h
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rw [smul_eq_mul, comp_apply, coe_mk, coe_mk, ContinuousMap.toFun_eq_coe, fourier_coe_apply] | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case e_f.h
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) (e * g)‖... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | congr 2 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case e_f.h.e_a.e_z
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) ... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | push_cast | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
case e_f.h.e_a.e_z
f : C(ℝ, ℂ)
hf :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
m : ℤ
e : C(ℝ, ℂ) := ContinuousMap.comp (fourier (-m)) (ContinuousMap.mk QuotientAddGroup.mk)
neK : ∀ (K : Compacts ℝ) (g : C(ℝ, ℂ)), ‖ContinuousMap.restrict (↑K) ... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | ring | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib.Analysis.Fourier.PoissonSummation.56_0.1MbUAOzT9Ye0D34 | /-- The key lemma for Poisson summation: the `m`-th Fourier coefficient of the periodic function
`∑' n : ℤ, f (x + n)` is the value at `m` of the Fourier transform of `f`. -/
theorem Real.fourierCoeff_tsum_comp_add {f : C(ℝ, ℂ)}
(hf : ∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp (ContinuousMap.addRight n)).rest... | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
⊢ ∑' (n : ℤ), f ↑n = ∑' (n : ℤ), 𝓕 ⇑f ↑n | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | let F : C(UnitAddCircle, ℂ) :=
⟨(f.periodic_tsum_comp_add_zsmul 1).lift, continuous_coinduced_dom.mpr (map_continuous _)⟩ | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
| Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.addRight (n •... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have : Summable (fourierCoeff F) := by
convert h_sum
exact Real.fourierCoeff_tsum_comp_add h_norm _ | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.addRight (n •... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | convert h_sum | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_5.h
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | exact Real.fourierCoeff_tsum_comp_add h_norm _ | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.addRight (n •... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | convert (has_pointwise_sum_fourier_series_of_summable this 0).tsum_eq.symm using 1 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_2
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.a... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have := (hasSum_apply (summable_of_locally_summable_norm h_norm).hasSum 0).tsum_eq | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_2
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.a... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | simpa only [coe_mk, ← QuotientAddGroup.mk_zero, Periodic.lift_coe, zsmul_one, comp_apply,
coe_addRight, zero_add] using this | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_3
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (ContinuousMap.a... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | congr 1 with n : 1 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_3.e_f.h
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (Continuou... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rw [← Real.fourierCoeff_tsum_comp_add h_norm n, fourier_eval_zero, smul_eq_mul, mul_one] | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
case h.e'_3.e_f.h
f : C(ℝ, ℂ)
h_norm :
∀ (K : Compacts ℝ), Summable fun n => ‖ContinuousMap.restrict (↑K) (ContinuousMap.comp f (ContinuousMap.addRight ↑n))‖
h_sum : Summable fun n => 𝓕 ⇑f ↑n
F : C(UnitAddCircle, ℂ) :=
ContinuousMap.mk
(Periodic.lift (_ : Periodic (⇑(∑' (n : ℤ), ContinuousMap.comp f (Continuou... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rfl | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) := by
let F ... | Mathlib.Analysis.Fourier.PoissonSummation.108_0.1MbUAOzT9Ye0D34 | /-- **Poisson's summation formula**, most general form. -/
theorem Real.tsum_eq_tsum_fourierIntegral {f : C(ℝ, ℂ)}
(h_norm :
∀ K : Compacts ℝ, Summable fun n : ℤ => ‖(f.comp <| ContinuousMap.addRight n).restrict K‖)
(h_sum : Summable fun n : ℤ => 𝓕 f n) : ∑' n : ℤ, f n = (∑' n : ℤ, 𝓕 f n) | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S : ℝ
⊢ (fun x => ‖ContinuousMap.restrict (Icc (x + R) (x + S)) f‖) =O[atTop] fun x => |x| ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have claim :
∀ x : ℝ, max 0 (-2 * R) < x → ∀ y : ℝ, x + R ≤ y → y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) := by
intro x hx y hy
rw [max_lt_iff] at hx
obtain ⟨hx1, hx2⟩ := hx
have hxR : 0 < x + R := by
rcases le_or_lt 0 R with (h | _)
· positivity
· linarith
have hy' : 0 < y := hxR.t... | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S : ℝ
⊢ ∀ (x : ℝ), max 0 (-2 * R) < x → ∀ (y : ℝ), x + R ≤ y → y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | intro x hx y hy | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x : ℝ
hx : max 0 (-2 * R) < x
y : ℝ
hy : x + R ≤ y
⊢ y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rw [max_lt_iff] at hx | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x : ℝ
hx : 0 < x ∧ -2 * R < x
y : ℝ
hy : x + R ≤ y
⊢ y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | obtain ⟨hx1, hx2⟩ := hx | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case intro
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
⊢ y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have hxR : 0 < x + R := by
rcases le_or_lt 0 R with (h | _)
· positivity
· linarith | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
⊢ 0 < x + R | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rcases le_or_lt 0 R with (h | _) | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case inl
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
h : 0 ≤ R
⊢ 0 < x + R | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | positivity | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case inr
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
h✝ : R < 0
⊢ 0 < x + R | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | linarith | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case intro
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
⊢ y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have hy' : 0 < y := hxR.trans_le hy | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case intro
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ y ^ (-b) ≤ (1 / 2) ^ (-b) * x ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | have : y ^ (-b) ≤ (x + R) ^ (-b) := by
rw [rpow_neg, rpow_neg, inv_le_inv]
· gcongr
all_goals positivity | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ y ^ (-b) ≤ (x + R) ^ (-b) | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | rw [rpow_neg, rpow_neg, inv_le_inv] | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ (x + R) ^ b ≤ y ^ b | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | gcongr | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case ha
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ 0 < y ^ b
case hb
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |... | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | all_goals positivity | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case ha
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ 0 < y ^ b | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | positivity | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
case hb
E : Type u_1
inst✝ : NormedAddCommGroup E
f : C(ℝ, E)
b : ℝ
hb : 0 < b
hf : ⇑f =O[atTop] fun x => |x| ^ (-b)
R S x y : ℝ
hy : x + R ≤ y
hx1 : 0 < x
hx2 : -2 * R < x
hxR : 0 < x + R
hy' : 0 < y
⊢ 0 < (x + R) ^ b | /-
Copyright (c) 2023 David Loeffler. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: David Loeffler
-/
import Mathlib.Analysis.Fourier.AddCircle
import Mathlib.Analysis.Fourier.FourierTransform
import Mathlib.Analysis.PSeries
import Mathlib.Analysis.Distribution.Schwar... | positivity | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib.Analysis.Fourier.PoissonSummation.131_0.1MbUAOzT9Ye0D34 | /-- If `f` is `O(x ^ (-b))` at infinity, then so is the function
`λ x, ‖f.restrict (Icc (x + R) (x + S))‖` for any fixed `R` and `S`. -/
theorem isBigO_norm_Icc_restrict_atTop {f : C(ℝ, E)} {b : ℝ} (hb : 0 < b)
(hf : IsBigO atTop f fun x : ℝ => |x| ^ (-b)) (R S : ℝ) :
IsBigO atTop (fun x : ℝ => ‖f.restrict (Icc... | Mathlib_Analysis_Fourier_PoissonSummation |
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