Context stringlengths 227 76.5k | target stringlengths 0 11.6k | file_name stringlengths 21 79 | start int64 14 3.67k | end int64 16 3.69k |
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/-
Copyright (c) 2019 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.Analysis.SpecificLimits.Basic
import Mathlib.Topology.MetricSpace.IsometricSMul
/-!
# Hausdorff distance
The Hausdorff distance on subsets of a... | @[continuity]
theorem continuous_infDist_pt : Continuous (infDist · s) :=
(uniformContinuous_infDist_pt s).continuous
| Mathlib/Topology/MetricSpace/HausdorffDistance.lean | 525 | 527 |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
-/
import Mathlib.Analysis.Calculus.InverseFunctionTheorem.Deriv
import Mathlib.Analysis.Calculus.LogDeriv... | (hasStrictFDerivAt_log_real h₂).hasFDerivAt.comp_hasDerivAt x h₁
theorem DifferentiableAt.clog {f : E → ℂ} {x : E} (h₁ : DifferentiableAt ℂ f x)
| Mathlib/Analysis/SpecialFunctions/Complex/LogDeriv.lean | 105 | 107 |
/-
Copyright (c) 2018 Kim Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kim Morrison, Johannes Hölzl, Yury Kudryashov
-/
import Mathlib.Algebra.Category.Grp.Basic
import Mathlib.Algebra.Ring.Equiv
import Mathlib.Algebra.Ring.PUnit
import Mathlib.CategoryTheo... |
/-- Build a `RingEquiv` from an isomorphism in the category `SemiRingCat`. -/
def semiRingCatIsoToRingEquiv {R S : SemiRingCat.{u}} (e : R ≅ S) : R ≃+* S :=
RingEquiv.ofHomInv e.hom.hom e.inv.hom (by ext; simp) (by ext; simp)
| Mathlib/Algebra/Category/Ring/Basic.lean | 653 | 656 |
/-
Copyright (c) 2022 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rémy Degenne
-/
import Mathlib.Probability.Martingale.Basic
/-!
# Centering lemma for stochastic processes
Any `ℕ`-indexed stochastic process which is adapted and integrable can be wri... |
theorem integrable_martingalePart (hf_int : ∀ n, Integrable (f n) μ) (n : ℕ) :
Integrable (martingalePart f ℱ μ n) μ := by
rw [martingalePart_eq_sum]
fun_prop
| Mathlib/Probability/Martingale/Centering.lean | 75 | 79 |
/-
Copyright (c) 2023 Yaël Dillies. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yaël Dillies
-/
import Mathlib.Algebra.BigOperators.Group.Finset.Piecewise
import Mathlib.Algebra.Order.BigOperators.Group.Finset
import Mathlib.Algebra.Order.Pi
import Mathlib.Algebra.O... | distributive. -/
lemma Finset.le_card_infs_mul_card_sups [DecidableEq α] (s t : Finset α) :
#s * #t ≤ #(s ⊼ t) * #(s ⊻ t) := by
simpa using four_functions_theorem (1 : α → ℕ) 1 1 1 zero_le_one zero_le_one zero_le_one
zero_le_one (fun _ _ ↦ le_rfl) s t
| Mathlib/Combinatorics/SetFamily/FourFunctions.lean | 311 | 315 |
/-
Copyright (c) 2020 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.Analysis.Calculus.Deriv.Basic
import Mathlib.Analysis.Calculus.ContDiff.Defs
/-!
# One-dimensional iterated derivatives
We define the `n`-th de... | obtain ⟨r, hpr⟩ := hp
ext n u
| Mathlib/Analysis/Calculus/IteratedDeriv/Defs.lean | 302 | 303 |
/-
Copyright (c) 2018 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl
-/
import Mathlib.Data.Finset.Card
import Mathlib.Data.Finset.Union
import Mathlib.Data.Multiset.Pi
import Mathlib.Logic.Function.DependsOn
/-!
# The cartesian product ... |
theorem Pi.cons_injective {a : α} {b : δ a} {s : Finset α} (hs : a ∉ s) :
Function.Injective (Pi.cons s a b) := fun e₁ e₂ eq =>
@Multiset.Pi.cons_injective α _ δ a b s.1 hs _ _ <|
funext fun e =>
funext fun h =>
have :
Pi.cons s a b e₁ e (by simpa only [Multiset.mem_cons, mem_insert] ... | Mathlib/Data/Finset/Pi.lean | 74 | 83 |
/-
Copyright (c) 2015 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Leonardo de Moura, Jeremy Avigad, Minchao Wu, Mario Carneiro
-/
import Mathlib.Data.Finset.Attach
import Mathlib.Data.Finset.Disjoint
import Mathlib.Data.Finset.Erase
import Mat... | Mathlib/Data/Finset/Basic.lean | 3,149 | 3,150 | |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl
-/
import Mathlib.Logic.Encodable.Lattice
import Mathlib.Order.Filter.AtTopBot.Finset
import Mathlib.Topology.Algebra.InfiniteSum.Group
/-!
# Infinite sums and product... | (he : e ∈ 𝓝 1) : ∃ N : ℕ, ∀ t ⊆ {n | N ≤ n}, (∏' n : t, f n) ∈ e :=
letI : UniformSpace G := IsTopologicalGroup.toUniformSpace G
have : IsUniformGroup G := isUniformGroup_of_commGroup
cauchySeq_finset_iff_nat_tprod_vanishing.1 hf.hasProd.cauchySeq e he
| Mathlib/Topology/Algebra/InfiniteSum/NatInt.lean | 308 | 311 |
/-
Copyright (c) 2022 Yaël Dillies. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yaël Dillies
-/
import Mathlib.Data.Finset.NAry
import Mathlib.Data.Finset.Slice
import Mathlib.Data.Set.Sups
/-!
# Set family operations
This file defines a few binary operations on `... | Mathlib/Data/Finset/Sups.lean | 707 | 708 | |
/-
Copyright (c) 2023 Joël Riou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joël Riou
-/
import Mathlib.CategoryTheory.Sites.Over
/-! Internal hom of sheaves
In this file, given two sheaves `F` and `G` on a site `(C, J)` with values
in a category `A`, we define ... | lemma exists_app (hx : x.Compatible) (g : Y ⟶ X) :
∃ (φ : F.obj (op Y) ⟶ G.obj (op Y)),
∀ {Z : C} (p : Z ⟶ Y) (hp : S (p ≫ g)), φ ≫ G.map p.op =
F.map p.op ≫ (x (p ≫ g) hp).app ⟨Over.mk (𝟙 Z)⟩ := by
let c : Cone ((Presieve.diagram (Sieve.pullback g S).arrows).op ⋙ G) :=
{ pt := F.obj (op Y)
... | Mathlib/CategoryTheory/Sites/SheafHom.lean | 127 | 149 |
/-
Copyright (c) 2021 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen
-/
import Mathlib.FieldTheory.RatFunc.Defs
import Mathlib.RingTheory.EuclideanDomain
import Mathlib.RingTheory.Localization.FractionRing
import Mathlib.RingTheory.Polynomial.C... | · simpa only [Ne, inv_eq_zero, Polynomial.leadingCoeff_eq_zero] using right_div_gcd_ne_zero hq
open scoped Classical in
/-- A version of `num_div_dvd` with the LHS in simp normal form -/
@[simp]
theorem num_div_dvd' (p : K[X]) {q : K[X]} (hq : q ≠ 0) :
C (q / gcd p q).leadingCoeff⁻¹ * (p / gcd p q) ∣ p := by sim... | Mathlib/FieldTheory/RatFunc/Basic.lean | 820 | 828 |
/-
Copyright (c) 2020 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Nathaniel Thomas, Jeremy Avigad, Johannes Hölzl, Mario Carneiro, Anne Baanen,
Frédéric Dupuis, Heather Macbeth
-/
import Mathlib.Algebra.Group.Hom.Instances
import Mathlib.Algebra.Modul... | end AddCommGroup
end LinearMap
| Mathlib/Algebra/Module/LinearMap/Defs.lean | 592 | 595 |
/-
Copyright (c) 2020 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen, Peter Nelson
-/
import Mathlib.Algebra.BigOperators.Fin
import Mathlib.Algebra.GeomSum
import Mathlib.LinearAlgebra.Matrix.Block
import Mathlib.LinearAlgebra.Matrix.Determina... | .of fun i j ↦ (v i) ^ j.1 * (w i) ^ j.rev.1
/-- A square matrix with rows all having the form `[b^(n-1), a * b^(n-2), ..., a ^ (n-1)]` -/
| Mathlib/LinearAlgebra/Vandermonde.lean | 72 | 74 |
/-
Copyright (c) 2020 Jalex Stark. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jalex Stark, Kim Morrison, Eric Wieser, Oliver Nash, Wen Yang
-/
import Mathlib.Data.Matrix.Basic
/-!
# Matrices with a single non-zero element.
This file provides `Matrix.stdBasisMatri... | stdBasisMatrix i j c * stdBasisMatrix j k d = stdBasisMatrix i k (c * d) := by
ext a b
simp only [mul_apply, stdBasisMatrix, boole_mul]
by_cases h₁ : i = a <;> by_cases h₂ : k = b <;> simp [h₁, h₂]
| Mathlib/Data/Matrix/Basis.lean | 231 | 234 |
/-
Copyright (c) 2021 Yuma Mizuno. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yuma Mizuno
-/
import Mathlib.CategoryTheory.NatIso
/-!
# Bicategories
In this file we define typeclass for bicategories.
A bicategory `B` consists of
* objects `a : B`,
* 1-morphisms ... | @[reassoc]
theorem leftUnitor_comp (f : a ⟶ b) (g : b ⟶ c) :
| Mathlib/CategoryTheory/Bicategory/Basic.lean | 394 | 395 |
/-
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.AlgebraicGeometry.Gluing
import Mathlib.CategoryTheory.Limits.Opposites
import Mathlib.AlgebraicGeometry.AffineScheme
import Mathlib.CategoryTheory.Limits.Sh... | · apply pullback.hom_ext
· simpa using lift_comp_ι 𝒰 f g i
· simp_rw [Category.assoc, pullback.lift_snd, pullback.lift_fst, Category.id_comp]
· apply pullback.hom_ext
· simp_rw [Category.assoc, pullback.lift_fst, pullback.lift_snd, Category.id_comp]
· simp [p2]
@[simp, reassoc]
theorem pullbackP1I... | Mathlib/AlgebraicGeometry/Pullbacks.lean | 361 | 380 |
/-
Copyright (c) 2022 Eric Rodriguez. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Eric Rodriguez
-/
import Mathlib.Algebra.GroupWithZero.Units.Lemmas
import Mathlib.Algebra.Order.BigOperators.Group.Finset
import Mathlib.Algebra.Order.Ring.Cast
import Mathlib.Data.Fi... | mul_one a := by cases a <;> rfl
| Mathlib/Data/Sign.lean | 90 | 90 |
/-
Copyright (c) 2021 Heather Macbeth. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Heather Macbeth, Frédéric Dupuis
-/
import Mathlib.Analysis.InnerProductSpace.Calculus
import Mathlib.Analysis.InnerProductSpace.Dual
import Mathlib.Analysis.InnerProductSpace.Adjoint... | rayleighQuotient T (c • x) = rayleighQuotient T x := by
by_cases hx : x = 0
· simp [hx]
field_simp [norm_smul, T.reApplyInnerSelf_smul]
ring
theorem image_rayleigh_eq_image_rayleigh_sphere {r : ℝ} (hr : 0 < r) :
rayleighQuotient T '' {0}ᶜ = rayleighQuotient T '' sphere 0 r := by
| Mathlib/Analysis/InnerProductSpace/Rayleigh.lean | 57 | 64 |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Algebra.Order.Ring.Nat
import Mathlib.Logic.Encodable.Pi
import Mathlib.Logic.Function.Iterate
/-!
# The primitive recursive functions
The primitive ... | (pred.comp₁ _ <|
(this _ hf).comp₁ (fun m => Encodable.encode <| (@decode (List.Vector ℕ n) _ m).map f)
| Mathlib/Computability/Primrec.lean | 1,391 | 1,392 |
/-
Copyright (c) 2021 Kim Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kim Morrison
-/
import Mathlib.Algebra.BigOperators.Group.Finset.Pi
import Mathlib.Algebra.BigOperators.Pi
import Mathlib.Algebra.Opposites
import Mathlib.Algebra.Ring.Opposite
import Ma... | ext j : 1
simp only [ι_additiveObjIsoBiproduct_inv_assoc, isoBiproductEmbedding_inv,
biproduct.ι_desc, ← F.map_comp]
congr 1
funext ⟨⟩ ⟨⟩
simp [comp_apply, dite_comp, comp_dite]
@[reassoc]
| Mathlib/CategoryTheory/Preadditive/Mat.lean | 383 | 390 |
/-
Copyright (c) 2021 Oliver Nash. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Oliver Nash
-/
import Mathlib.Algebra.Ring.Divisibility.Lemmas
import Mathlib.Algebra.Lie.Nilpotent
import Mathlib.Algebra.Lie.Engel
import Mathlib.LinearAlgebra.Eigenspace.Pi
import Math... |
/-- This is the Fitting decomposition of the Lie module `M`. -/
lemma isCompl_genWeightSpace_zero_posFittingComp :
IsCompl (genWeightSpace M 0) (posFittingComp R L M) := by
let P : LieSubmodule R L M → Prop := fun N ↦ IsCompl (genWeightSpace N 0) (posFittingComp R L N)
| Mathlib/Algebra/Lie/Weights/Basic.lean | 631 | 635 |
/-
Copyright (c) 2021 Yourong Zang. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yourong Zang, Yury Kudryashov
-/
import Mathlib.Data.Fintype.Option
import Mathlib.Topology.Homeomorph.Lemmas
import Mathlib.Topology.Sets.Opens
/-!
# The OnePoint Compactification
We ... | tendsto_nhds_infty'.trans <| by
simp only [tendsto_pure_left, hasBasis_coclosedCompact.tendsto_left_iff, forall_and,
and_assoc, exists_prop]
| Mathlib/Topology/Compactification/OnePoint.lean | 359 | 362 |
/-
Copyright (c) 2020 Floris van Doorn. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Floris van Doorn
-/
import Mathlib.Data.Set.Prod
/-!
# N-ary images of sets
This file defines `Set.image2`, the binary image of sets.
This is mostly useful to define pointwise oper... | (image2_nonempty_iff.1 h).1
| Mathlib/Data/Set/NAry.lean | 122 | 123 |
/-
Copyright (c) 2014 Robert Y. Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Robert Y. Lewis, Leonardo de Moura, Johannes Hölzl, Mario Carneiro
-/
import Mathlib.Algebra.Field.Defs
import Mathlib.Algebra.Ring.Commute
import Mathlib.Algebra.Ring.Invertible
impo... | qsmul_def q a := hf <| by rw [qsmul, mul, Rat.smul_def, ratCast]
| Mathlib/Algebra/Field/Basic.lean | 241 | 242 |
/-
Copyright (c) 2020 Johan Commelin. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin, Jujian Zhang, Yongle Hu
-/
import Mathlib.Algebra.Colimit.TensorProduct
import Mathlib.Algebra.DirectSum.Finsupp
import Mathlib.Algebra.DirectSum.Module
import Mathlib.... | /-- If `M` is a flat module, then `f ⊗ 𝟙 M` is injective for all injective linear maps `f`. -/
theorem rTensor_preserves_injective_linearMap [Flat R M] (f : N →ₗ[R] P)
(hf : Function.Injective f) : Function.Injective (f.rTensor M) := by
| Mathlib/RingTheory/Flat/Basic.lean | 117 | 119 |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Bryan Gin-ge Chen
-/
import Mathlib.Order.Heyting.Basic
/-!
# (Generalized) Boolean algebras
A Boolean algebra is a bounded distributive lattice with a complement ope... | rw [sup_sdiff_cancel_right hx]
refine le_trans (sup_le_sup_left sdiff_le z) ?_
rw [sup_eq_right.2 hz]),
| Mathlib/Order/BooleanAlgebra.lean | 229 | 231 |
/-
Copyright (c) 2014 Robert Y. Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Robert Y. Lewis, Leonardo de Moura, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Algebra.Order.Ring.Defs
import Mathlib.Algebra.Field.Defs
/-!
# Linear ordered (semi)fields
A ... | Mathlib/Algebra/Order/Field/Defs.lean | 61 | 61 | |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Algebra.Order.Ring.Nat
import Mathlib.Logic.Encodable.Pi
import Mathlib.Logic.Function.Iterate
/-!
# The primitive recursive functions
The primitive ... | (fun o m => (@decode α _ m).bind fun a => o.map (List.cons (encode a))) (some []) :=
list_foldl' H ((list_reverse' H).comp (.ofNat (List ℕ))) (const (some []))
(Primrec.comp₂ (bind_decode_iff.2 <| .swap this) Primrec₂.right)
nat_iff.1 <|
(encode_iff.2 this).of_eq fun n => by
rw... | Mathlib/Computability/Primrec.lean | 813 | 829 |
/-
Copyright (c) 2024 Joël Riou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joël Riou
-/
import Mathlib.CategoryTheory.Limits.Final
import Mathlib.CategoryTheory.Functor.TwoSquare
/-!
# Guitart exact squares
Given four functors `T`, `L`, `R` and `B`, a 2-square `... | obtain ⟨g, φ, rfl⟩ := CostructuredArrow.mk_surjective f
obtain ⟨X₁, a, rfl⟩ := g.mk_surjective
obtain ⟨b, hb, rfl⟩ := StructuredArrow.homMk_surjective φ
exact ⟨X₁, a, b, by simpa using hb, rfl⟩
end
namespace EquivalenceJ
| Mathlib/CategoryTheory/GuitartExact/Basic.lean | 132 | 139 |
/-
Copyright (c) 2023 Xavier Roblot. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Xavier Roblot
-/
import Mathlib.NumberTheory.NumberField.Embeddings
import Mathlib.RingTheory.LocalRing.RingHom.Basic
import Mathlib.GroupTheory.Torsion
/-!
# Units of a number field
... | rw [← RingOfIntegers.coe_norm, isUnit_iff_norm.mp x.isUnit]
theorem pos_at_place (x : (𝓞 K)ˣ) (w : InfinitePlace K) :
| Mathlib/NumberTheory/NumberField/Units/Basic.lean | 97 | 99 |
/-
Copyright (c) 2020 Johan Commelin, Robert Y. Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin, Robert Y. Lewis
-/
import Mathlib.Algebra.MvPolynomial.Rename
import Mathlib.Algebra.MvPolynomial.Variables
/-!
# Monad operations on `MvPolynomial`
... | ext1
apply aeval_bind₁
theorem eval₂Hom_comp_bind₂ (f : S →+* T) (g : σ → T) (h : R →+* MvPolynomial σ S) :
| Mathlib/Algebra/MvPolynomial/Monad.lean | 257 | 260 |
/-
Copyright (c) 2023 Eric Wieser. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Eric Wieser
-/
import Mathlib.Data.Matrix.Kronecker
import Mathlib.LinearAlgebra.Matrix.ToLin
import Mathlib.LinearAlgebra.TensorProduct.Basis
/-!
# Connections between `TensorProduct` a... | ext ⟨i, j, k⟩ ⟨⟨i', j'⟩, k'⟩
simp only [toMatrix_apply, Basis.tensorProduct_apply, LinearEquiv.coe_coe, assoc_tmul,
Basis.tensorProduct_repr_tmul_apply, Basis.repr_self, Finsupp.single_apply, @eq_comm _ k',
@eq_comm _ j', smul_eq_mul, mul_ite, mul_one, mul_zero, ← ite_and, @eq_comm _ i',
submatrix_apply... | Mathlib/LinearAlgebra/TensorProduct/Matrix.lean | 68 | 78 |
/-
Copyright (c) 2022 Kim Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kim Morrison, Joël Riou
-/
import Mathlib.CategoryTheory.Comma.Arrow
/-!
# Commutative squares
This file provide an API for commutative squares in categories.
If `top`, `left`, `right`... |
namespace Functor
| Mathlib/CategoryTheory/CommSq.lean | 126 | 127 |
/-
Copyright (c) 2019 Johan Commelin. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin
-/
import Mathlib.Logic.IsEmpty
import Mathlib.Tactic.Inhabit
/-!
# Types with a unique term
In this file we define a typeclass `Unique`,
which expresses that a type h... | exact he b hb⟩⟩⟩
@[deprecated (since := "2024-12-17")]
alias unique_subtype_iff_exists_unique := unique_subtype_iff_existsUnique
/-- Given an explicit `a : α` with `Subsingleton α`, we can construct
| Mathlib/Logic/Unique.lean | 68 | 73 |
/-
Copyright (c) 2022 Anatole Dedecker. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anatole Dedecker
-/
import Mathlib.Topology.UniformSpace.UniformConvergenceTopology
/-!
# Equicontinuity of a family of functions
Let `X` be a topological space and `α` a `UniformS... | exact hk.mono_left <| inf_le_inf_right _ <| iInf_le _ k
theorem Filter.HasBasis.equicontinuousAt_iff_left {p : κ → Prop} {s : κ → Set X}
{F : ι → X → α} {x₀ : X} (hX : (𝓝 x₀).HasBasis p s) :
EquicontinuousAt F x₀ ↔ ∀ U ∈ 𝓤 α, ∃ k, p k ∧ ∀ x ∈ s k, ∀ i, (F i x₀, F i x) ∈ U := by
| Mathlib/Topology/UniformSpace/Equicontinuity.lean | 603 | 607 |
/-
Copyright (c) 2021 Riccardo Brasca. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Riccardo Brasca
-/
import Mathlib.Algebra.Group.Pointwise.Set.Finite
import Mathlib.Algebra.Group.Subgroup.Pointwise
import Mathlib.GroupTheory.QuotientGroup.Defs
/-!
# Finitely gene... | Group.FG G ↔ ∃ (n : _) (S : Finset G), S.card = n ∧ Subgroup.closure (S : Set G) = ⊤ :=
Group.fg_def.trans ⟨fun ⟨S, hS⟩ => ⟨S.card, S, rfl, hS⟩, fun ⟨_n, S, _hn, hS⟩ => ⟨S, hS⟩⟩
| Mathlib/GroupTheory/Finiteness.lean | 267 | 269 |
/-
Copyright (c) 2018 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Jens Wagemaker, Anne Baanen
-/
import Mathlib.Algebra.BigOperators.Finsupp.Basic
import Mathlib.Algebra.Group.Submonoid.Membership
import Mathlib.Algebra.GroupWithZero.... | p ∣ (s.map f).prod → ∃ a ∈ s, p ∣ f a := fun h => by
simpa only [exists_prop, Multiset.mem_map, exists_exists_and_eq_and] using
hp.exists_mem_multiset_dvd h
| Mathlib/Algebra/BigOperators/Associated.lean | 39 | 42 |
/-
Copyright (c) 2019 Jean Lo. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jean Lo, Yaël Dillies, Moritz Doll
-/
import Mathlib.Algebra.Order.Pi
import Mathlib.Analysis.Convex.Function
import Mathlib.Analysis.LocallyConvex.Basic
import Mathlib.Data.Real.Pointwise
/... |
section SeminormedCommRing
variable [SeminormedRing 𝕜] [SeminormedCommRing 𝕜₂]
variable {σ₁₂ : 𝕜 →+* 𝕜₂} [RingHomIsometric σ₁₂]
| Mathlib/Analysis/Seminorm.lean | 397 | 401 |
/-
Copyright (c) 2020 Aaron Anderson. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Aaron Anderson
-/
import Mathlib.Algebra.BigOperators.Ring.Finset
import Mathlib.Algebra.Module.BigOperators
import Mathlib.NumberTheory.Divisors
import Mathlib.Data.Nat.Squarefree
imp... | | succ n =>
rw [coe_zeta_smul_apply]
simp only [n.succ_ne_zero, forall_prop_of_true, succ_pos', if_false, ZeroHom.coe_mk]
simp only [f', g', coe_mk, succ_ne_zero, ite_false]
rw [sum_congr rfl fun x hx => ?_]
rw [if_neg (Nat.pos_of_mem_divisors hx).ne']
| Mathlib/NumberTheory/ArithmeticFunction.lean | 1,129 | 1,134 |
/-
Copyright (c) 2020 Kim Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kim Morrison
-/
import Mathlib.CategoryTheory.Monoidal.Discrete
import Mathlib.CategoryTheory.Monoidal.NaturalTransformation
import Mathlib.CategoryTheory.Monoidal.Opposite
import Mathli... | simp [← rightUnitor_inv_braiding]
| Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean | 342 | 343 |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Computability.Partrec
import Mathlib.Data.Option.Basic
/-!
# Gödel Numbering for Partial Recursive Functions.
This file defines `Nat.Partrec.Code`, a... | section
open Primrec
namespace Nat.Partrec.Code
| Mathlib/Computability/PartrecCode.lean | 206 | 209 |
/-
Copyright (c) 2020 Zhouhang Zhou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Zhouhang Zhou, Yury Kudryashov
-/
import Mathlib.Algebra.Group.Indicator
import Mathlib.Algebra.GroupWithZero.Basic
/-!
# Indicator functions and support of a function in groups with z... |
section MonoidWithZero
| Mathlib/Algebra/GroupWithZero/Indicator.lean | 112 | 113 |
/-
Copyright (c) 2014 Jeremy Avigad. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Avigad, Leonardo de Moura
-/
import Batteries.Tactic.Congr
import Mathlib.Data.Option.Basic
import Mathlib.Data.Prod.Basic
import Mathlib.Data.Set.Subsingleton
import Mathlib.Dat... | ext i
obtain hi | hi := eq_or_ne (σ i) i
| Mathlib/Data/Set/Image.lean | 537 | 538 |
/-
Copyright (c) 2019 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jan-David Salchow, Sébastien Gouëzel, Jean Lo, Yury Kudryashov, Frédéric Dupuis,
Heather Macbeth
-/
import Mathlib.Algebra.Module.Opposite
import Mathlib.Topology.Algebra.Group.Qu... | Mathlib/Topology/Algebra/Module/Basic.lean | 2,090 | 2,093 | |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes
-/
import Mathlib.Algebra.CharP.Two
import Mathlib.Data.Nat.Cast.Field
import Mathlib.Data.Nat.Factorization.Basic
import Mathlib.Data.Nat.Factorization.Induction
import Mat... | end Nat
| Mathlib/Data/Nat/Totient.lean | 349 | 356 |
/-
Copyright (c) 2021 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Zhouhang Zhou, Yury Kudryashov, Sébastien Gouëzel, Rémy Degenne
-/
import Mathlib.MeasureTheory.Integral.FinMeasAdditive
/-!
# Extension of a linear function from indicators to L1
Give... | theorem setToL1_mono_left' {T T' : Set α → E →L[ℝ] G''} {C C' : ℝ}
(hT : DominatedFinMeasAdditive μ T C) (hT' : DominatedFinMeasAdditive μ T' C')
(hTT' : ∀ s, MeasurableSet s → μ s < ∞ → ∀ x, T s x ≤ T' s x) (f : α →₁[μ] E) :
setToL1 hT f ≤ setToL1 hT' f := by
induction f using Lp.induction (hp_ne_top := ... | Mathlib/MeasureTheory/Integral/SetToL1.lean | 519 | 525 |
/-
Copyright (c) 2020 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel
-/
import Mathlib.Topology.UniformSpace.Cauchy
/-!
# Uniform convergence
A sequence of functions `Fₙ` (with values in a metric space) converges uniformly on a se... |
theorem UniformContinuous₂.tendstoUniformly [UniformSpace α] [UniformSpace γ] {f : α → β → γ}
(h : UniformContinuous₂ f) : TendstoUniformly f (f x) (𝓝 x) :=
UniformContinuousOn.tendstoUniformly univ_mem <| by rwa [univ_prod_univ, uniformContinuousOn_univ]
| Mathlib/Topology/UniformSpace/UniformConvergence.lean | 349 | 352 |
/-
Copyright (c) 2021 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Analysis.Analytic.IsolatedZeros
import Mathlib.Analysis.SpecialFunctions.Complex.CircleMap
import Mathlib.Analysis.SpecialFunctions.NonIntegrable
/-... | theorem circleIntegrable_zero_radius {f : ℂ → E} {c : ℂ} : CircleIntegrable f c 0 := by
simp [CircleIntegrable]
| Mathlib/MeasureTheory/Integral/CircleIntegral.lean | 198 | 199 |
/-
Copyright (c) 2018 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Kenny Lau, Johan Commelin, Mario Carneiro, Kevin Buzzard,
Amelia Livingston, Yury Kudryashov
-/
import Mathlib.Algebra.BigOperators.Group.Multiset.Defs
import Mathlib.A... |
namespace FreeMonoid
variable {α : Type*}
| Mathlib/Algebra/Group/Submonoid/Membership.lean | 142 | 146 |
/-
Copyright (c) 2022 Cuma Kökmen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Cuma Kökmen, Yury Kudryashov
-/
import Mathlib.MeasureTheory.Integral.CircleIntegral
import Mathlib.MeasureTheory.Integral.Prod
import Mathlib.Order.Fin.Tuple
import Mathlib.Util.Superscr... | /-- If for all `θ : ℝⁿ`, `‖f (torusMap c R θ)‖` is less than or equal to a constant `C : ℝ`, then
`‖∯ x in T(c, R), f x‖` is less than or equal to `(2 * π)^n * (∏ i, |R i|) * C` -/
theorem norm_torusIntegral_le_of_norm_le_const {C : ℝ} (hf : ∀ θ, ‖f (torusMap c R θ)‖ ≤ C) :
‖∯ x in T(c, R), f x‖ ≤ ((2 * π) ^ (n : ℕ... | Mathlib/MeasureTheory/Integral/TorusIntegral.lean | 170 | 173 |
/-
Copyright (c) 2018 Rohan Mitta. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rohan Mitta, Kevin Buzzard, Alistair Tucker, Johannes Hölzl, Yury Kudryashov, Winston Yin
-/
import Mathlib.Algebra.Group.End
import Mathlib.Topology.EMetricSpace.Diam
/-!
# Lipschitz co... | protected theorem iterate {f : α → α} (hf : LipschitzWith K f) : ∀ n, LipschitzWith (K ^ n) f^[n]
| 0 => by simpa only [pow_zero] using LipschitzWith.id
| n + 1 => by rw [pow_succ]; exact (LipschitzWith.iterate hf n).comp hf
| Mathlib/Topology/EMetricSpace/Lipschitz.lean | 263 | 265 |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Fin.VecNotation
import Mathlib.Logic.Small.Basic
import Mathlib.SetTheory.ZFC.PSet
/-!
# A model of ZFC
In this file, we model Zermelo-Fraenkel ... | Mathlib/SetTheory/ZFC/Basic.lean | 1,698 | 1,706 | |
/-
Copyright (c) 2022 Joseph Myers. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Myers
-/
import Mathlib.Algebra.CharP.Invertible
import Mathlib.Algebra.Order.Interval.Set.Group
import Mathlib.Analysis.Convex.Basic
import Mathlib.Analysis.Convex.Segment
import... | ⟨0, Set.left_mem_Icc.2 zero_le_one, lineMap_apply_zero _ _⟩
theorem right_mem_affineSegment (x y : P) : y ∈ affineSegment R x y :=
| Mathlib/Analysis/Convex/Between.lean | 110 | 112 |
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Finset.Card
import Mathlib.Data.Fintype.Basic
/-!
# Cardinalities of finite types
This file defines the cardinality `Fintype.card α` as the numb... | Mathlib/Data/Fintype/Card.lean | 594 | 595 | |
/-
Copyright (c) 2020 Johan Commelin, Robert Y. Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johan Commelin, Robert Y. Lewis
-/
import Mathlib.Algebra.Field.ZMod
import Mathlib.NumberTheory.Padics.PadicIntegers
import Mathlib.RingTheory.LocalRing.ResidueField.... | have := dvd_add ha hb
rwa [sub_eq_add_neg, sub_eq_add_neg, add_assoc, neg_add_cancel_left, ← sub_eq_add_neg, ←
Int.cast_sub, pow_p_dvd_int_iff] at this
theorem zmod_congr_of_sub_mem_span (n : ℕ) (x : ℤ_[p]) (a b : ℕ)
(ha : x - a ∈ (Ideal.span {(p : ℤ_[p]) ^ n}))
(hb : x - b ∈ (Ideal.span {(p : ℤ_[p]) ^... | Mathlib/NumberTheory/Padics/RingHoms.lean | 142 | 150 |
/-
Copyright (c) 2020 Kevin Kappelmann. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kevin Kappelmann
-/
import Mathlib.Algebra.ContinuedFractions.Computation.Approximations
import Mathlib.Algebra.ContinuedFractions.Computation.CorrectnessTerminating
import Mathlib.D... |
theorem of_terminates_iff_of_rat_terminates {v : K} {q : ℚ} (v_eq_q : v = (q : K)) :
(of v).Terminates ↔ (of q).Terminates := by
constructor <;> intro h <;> obtain ⟨n, h⟩ := h <;> use n <;>
simp only [Stream'.Seq.TerminatedAt, (coe_of_s_get?_rat_eq v_eq_q n).symm] at h ⊢ <;>
cases h' : (of q).s.get? n <;... | Mathlib/Algebra/ContinuedFractions/Computation/TerminatesIffRat.lean | 214 | 220 |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Kevin Buzzard, Yury Kudryashov
-/
import Mathlib.Algebra.Group.Subgroup.Lattice
import Mathlib.Algebra.Group.Submonoid.Membership
import Mathlib.Algebra... |
variable (R)
@[simp]
theorem subsingleton_iff : Subsingleton (Submodule R M) ↔ Subsingleton M :=
| Mathlib/Algebra/Module/Submodule/Lattice.lean | 312 | 316 |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Sébastien Gouëzel, Patrick Massot
-/
import Mathlib.Topology.UniformSpace.Cauchy
import Mathlib.Topology.UniformSpace.Separation
import Mathlib.Topology.DenseEmbedding
... | include h_f in
theorem uniformContinuous_uniformly_extend [CompleteSpace γ] : UniformContinuous ψ := fun d hd =>
let ⟨s, hs, hs_comp⟩ := comp3_mem_uniformity hd
| Mathlib/Topology/UniformSpace/UniformEmbedding.lean | 475 | 477 |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Sébastien Gouëzel,
Rémy Degenne, David Loeffler
-/
import Mathlib.Analysis.SpecialFunctions.Pow.Real
/-!
# Power function... |
@[simp]
theorem rpow_one (x : ℝ≥0) : x ^ (1 : ℝ) = x :=
| Mathlib/Analysis/SpecialFunctions/Pow/NNReal.lean | 57 | 59 |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov
-/
import Mathlib.Order.Filter.Interval
import Mathlib.Order.Interval.Set.Pi
import Mathlib.Tactic.TFAE
import Mathlib.Tactic.NormNum
im... | · rcases em (∃ x, ¬(b < f x)) with (⟨x, hx⟩ | hb)
· rcases H₁ hb hx with ⟨y, hya, hyb⟩
exact iInf₂_le_of_le y hya (principal_mono.2 fun z hz => hyb.trans_lt (hf.2 hz))
· push_neg at hb
exact le_principal_iff.2 (univ_mem' hb)
· rcases em (∃ x, ¬(f x < b)) with (⟨x, hx⟩ | hb)
· rcases H₂ hb hx... | Mathlib/Topology/Order/Basic.lean | 201 | 208 |
/-
Copyright (c) 2020 Kenny Lau. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kenny Lau
-/
import Mathlib.RingTheory.Adjoin.FG
/-!
# Adjoining elements and being finitely generated in an algebra tower
## Main results
* `Algebra.fg_trans'`: if `S` is finitely gene... | exact ⟨s.image (algebraMap S A) ∪ t, by
rw [Finset.coe_union, Finset.coe_image,
Algebra.adjoin_algebraMap_image_union_eq_adjoin_adjoin,
hs, Algebra.adjoin_top, ht, Subalgebra.restrictScalars_top,
Subalgebra.restrictScalars_top
]
⟩
end
| Mathlib/RingTheory/Adjoin/Tower.lean | 67 | 74 |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.List.Sublists
import Mathlib.Data.List.Zip
import Mathlib.Data.Multiset.Bind
import Mathlib.Data.Multiset.Range
/-!
# The powerset of a multiset
... | exact coe_eq_coe.mpr ((List.range_bind_sublistsLen_perm _).map _)
@[simp]
theorem nodup_powerset {s : Multiset α} : Nodup (powerset s) ↔ Nodup s :=
| Mathlib/Data/Multiset/Powerset.lean | 275 | 278 |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Abhimanyu Pallavi Sudhir
-/
import Mathlib.Algebra.CharP.Defs
import Mathlib.Algebra.Order.CauSeq.BigOperators
import Mathlib.Algebra.Order.Star.Basic
import Mathlib.Data.C... | Mathlib/Data/Complex/Exponential.lean | 932 | 932 | |
/-
Copyright (c) 2024 Jeremy Tan. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Jeremy Tan
-/
import Mathlib.Combinatorics.SimpleGraph.Clique
import Mathlib.Order.Partition.Equipartition
/-!
# Turán's theorem
In this file we prove Turán's theorem, the first importan... | /-- In a Turán-maximal graph, non-adjacency is transitive. -/
lemma not_adj_trans (h : G.IsTuranMaximal r) (hts : ¬G.Adj t s) (hsu : ¬G.Adj s u) :
¬G.Adj t u := by
have hst : ¬G.Adj s t := fun a ↦ hts a.symm
have dst := h.degree_eq_of_not_adj hst
have dsu := h.degree_eq_of_not_adj hsu
rw [IsTuranMaximal] at... | Mathlib/Combinatorics/SimpleGraph/Turan.lean | 141 | 166 |
/-
Copyright (c) 2020 Shing Tak Lam. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Shing Tak Lam
-/
import Mathlib.Data.Finite.Sum
import Mathlib.Data.ZMod.Basic
import Mathlib.GroupTheory.Exponent
import Mathlib.GroupTheory.GroupAction.CardCommute
import Mathlib.Grou... | | ⟨⟨sr i, sr j⟩, _⟩ => Sum.inr (Sum.inr (Sum.inl (i + j)))
| ⟨⟨r i, r j⟩, _⟩ => Sum.inr (Sum.inr (Sum.inr ⟨i, j⟩))
invFun := fun
| .inl i => ⟨⟨sr i, r 0⟩, congrArg sr ((add_zero i).trans (sub_zero i).symm)⟩
| .inr (.inl j) => ⟨⟨r 0, sr j⟩, congrArg sr ((sub_zero j).trans (add_zero j).symm)⟩
... | Mathlib/GroupTheory/SpecificGroups/Dihedral.lean | 247 | 252 |
/-
Copyright (c) 2022 Wrenna Robson. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Wrenna Robson
-/
import Mathlib.Analysis.Normed.Group.Basic
/-!
# Hamming spaces
The Hamming metric counts the number of places two members of a (finite) Pi type
differ. The Hamming n... |
instance [Fintype ι] [∀ i, DecidableEq (β i)] : DecidableEq (Hamming β) :=
Fintype.decidablePiFintype
| Mathlib/InformationTheory/Hamming.lean | 222 | 224 |
/-
Copyright (c) 2018 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Fin.VecNotation
import Mathlib.Logic.Small.Basic
import Mathlib.SetTheory.ZFC.PSet
/-!
# A model of ZFC
In this file, we model Zermelo-Fraenkel ... | Mathlib/SetTheory/ZFC/Basic.lean | 1,072 | 1,074 | |
/-
Copyright (c) 2021 Anne Baanen. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Anne Baanen, Ashvni Narayanan
-/
import Mathlib.FieldTheory.RatFunc.Degree
import Mathlib.RingTheory.DedekindDomain.IntegralClosure
import Mathlib.RingTheory.IntegralClosure.IntegrallyClo... |
instance : IsFractionRing (ringOfIntegers Fq F) F :=
integralClosure.isFractionRing_of_finite_extension (RatFunc Fq) F
| Mathlib/NumberTheory/FunctionField.lean | 123 | 126 |
/-
Copyright (c) 2022 Kim Morrison. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Kim Morrison
-/
import Mathlib.CategoryTheory.Limits.Shapes.ZeroMorphisms
import Mathlib.CategoryTheory.Limits.Constructions.BinaryProducts
/-!
# Limits involving zero objects
Binary p... | Mathlib/CategoryTheory/Limits/Constructions/ZeroObjects.lean | 207 | 210 | |
/-
Copyright (c) 2023 Sébastien Gouëzel. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Sébastien Gouëzel, Yury Kudryashov
-/
import Mathlib.Analysis.Calculus.Deriv.Mul
import Mathlib.Analysis.Calculus.Deriv.Comp
/-!
# Derivatives of `x ↦ x⁻¹` and `f x / g x`
In this... |
@[simp]
| Mathlib/Analysis/Calculus/Deriv/Inv.lean | 114 | 115 |
/-
Copyright (c) 2019 Gabriel Ebner. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Gabriel Ebner, Sébastien Gouëzel, Yury Kudryashov, Anatole Dedecker
-/
import Mathlib.Analysis.Calculus.Deriv.Basic
import Mathlib.Analysis.Calculus.FDeriv.Add
/-!
# One-dimensional de... |
@[simp]
| Mathlib/Analysis/Calculus/Deriv/Add.lean | 134 | 135 |
/-
Copyright (c) 2021 Hunter Monroe. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Hunter Monroe, Kyle Miller, Alena Gusakov
-/
import Mathlib.Combinatorics.SimpleGraph.DeleteEdges
import Mathlib.Data.Fintype.Powerset
/-!
# Subgraphs of a simple graph
A subgraph of ... | simp
| Mathlib/Combinatorics/SimpleGraph/Subgraph.lean | 543 | 544 |
/-
Copyright (c) 2020 Simon Hudon. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Simon Hudon
-/
import Mathlib.Data.Stream.Init
import Mathlib.Tactic.ApplyFun
import Mathlib.Control.Fix
import Mathlib.Order.OmegaCompletePartialOrder
/-!
# Lawful fixed point operators... |
variable {f : (∀ a b, γ a b) → ∀ a b, γ a b}
theorem uncurry_curry_ωScottContinuous (hc : ωScottContinuous f) :
ωScottContinuous <| (monotoneUncurry α β γ).comp <|
| Mathlib/Control/LawfulFix.lean | 258 | 262 |
/-
Copyright (c) 2021 Rémy Degenne. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Rémy Degenne
-/
import Mathlib.MeasureTheory.Function.LpSeminorm.Trim
import Mathlib.MeasureTheory.Function.StronglyMeasurable.Inner
import Mathlib.MeasureTheory.Function.StronglyMeasura... | alias ae_eq_trim_iff_of_aeStronglyMeasurable' := ae_eq_trim_iff_of_aestronglyMeasurable
theorem AEStronglyMeasurable.comp_ae_measurable' {α β γ : Type*} [TopologicalSpace β]
{mα : MeasurableSpace α} {_ : MeasurableSpace γ} {f : α → β} {μ : Measure γ} {g : γ → α}
| Mathlib/MeasureTheory/Function/ConditionalExpectation/AEMeasurable.lean | 136 | 139 |
/-
Copyright (c) 2024 Joël Riou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joël Riou
-/
import Mathlib.CategoryTheory.Functor.KanExtension.Basic
/-!
# Pointwise Kan extensions
In this file, we define the notion of pointwise (left) Kan extension. Given two functo... | variable {E E'}
/-- If two left extensions `E` and `E'` are isomorphic, `E` is a pointwise
left Kan extension at `Y` iff `E'` is. -/
| Mathlib/CategoryTheory/Functor/KanExtension/Pointwise.lean | 129 | 132 |
/-
Copyright (c) 2020 Heather Macbeth. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Heather Macbeth
-/
import Mathlib.Data.Set.Function
import Mathlib.Order.Interval.Set.LinearOrder
/-!
# Monotone surjective functions are surjective on intervals
A monotone surjecti... | · intro p hp
rcases eq_left_or_mem_Ioo_of_mem_Ico hp with (rfl | hp')
· exact mem_image_of_mem f (left_mem_Ico.mpr hab)
· exact image_subset f Ioo_subset_Ico_self <|
surjOn_Ioo_of_monotone_surjective h_mono h_surj a b hp'
· rw [Ico_eq_empty (h_mono hab).not_lt]
exact surjOn_empty f _
theore... | Mathlib/Order/Interval/Set/SurjOn.lean | 35 | 44 |
/-
Copyright (c) 2024 Oliver Nash. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Oliver Nash
-/
import Mathlib.LinearAlgebra.Eigenspace.Basic
import Mathlib.LinearAlgebra.Semisimple
/-!
# Eigenspaces of semisimple linear endomorphisms
This file contains basic result... | refine le_antisymm (fun m hm ↦ mem_eigenspace_iff.mpr ?_) (f.genEigenspace μ |>.mono ?_)
· apply apply_eq_of_mem_of_comm_of_isFinitelySemisimple_of_isNil hm rfl hf
simp
· exact Order.one_le_iff_pos.mpr hk
| Mathlib/LinearAlgebra/Eigenspace/Semisimple.lean | 55 | 59 |
/-
Copyright (c) 2020 Floris van Doorn. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Floris van Doorn
-/
import Mathlib.Data.Set.Prod
/-!
# N-ary images of sets
This file defines `Set.image2`, the binary image of sets.
This is mostly useful to define pointwise oper... | image2 f s {b} = s := by
rw [image2_singleton_right, funext h, image_id']
theorem image2_inter_union_subset_union :
image2 f (s ∩ s') (t ∪ t') ⊆ image2 f s t ∪ image2 f s' t' := by
rw [image2_union_right]
| Mathlib/Data/Set/NAry.lean | 308 | 313 |
/-
Copyright (c) 2021 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Analysis.BoxIntegral.Partition.Filter
import Mathlib.Analysis.BoxIntegral.Partition.Measure
import Mathlib.Analysis.Oscillation
import Mathlib.Data.B... | h.mono_left <| IntegrationParams.toFilteriUnion_mono _ hl _
protected theorem Integrable.hasIntegral (h : Integrable I l f vol) :
HasIntegral I l f vol (integral I l f vol) := by
rw [integral, dif_pos h]
exact Classical.choose_spec h
theorem Integrable.mono {l'} (h : Integrable I l f vol) (hle : l' ≤ l) : I... | Mathlib/Analysis/BoxIntegral/Basic.lean | 220 | 232 |
/-
Copyright (c) 2018 Chris Hughes. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Chris Hughes, Johannes Hölzl, Kim Morrison, Jens Wagemaker
-/
import Mathlib.Algebra.MonoidAlgebra.Support
import Mathlib.Algebra.Polynomial.Basic
import Mathlib.Data.Nat.Choose.Sum
impo... | Mathlib/Algebra/Polynomial/Coeff.lean | 157 | 157 | |
/-
Copyright (c) 2015 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Multiset.ZeroCons
/-!
# Basic results on multisets
-/
-- No algebra should be required
assert_not_exists Monoid
universe v
open List S... | Mathlib/Data/Multiset/Basic.lean | 2,537 | 2,539 | |
/-
Copyright (c) 2021 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Analysis.BoxIntegral.Partition.Filter
import Mathlib.Analysis.BoxIntegral.Partition.Measure
import Mathlib.Analysis.Oscillation
import Mathlib.Data.B... | `I` subordinate to `r`, the integral sum over this partition is `ε`-close to the integral. Then for
any tagged prepartition (i.e. a finite collections of pairwise disjoint subboxes of `I` with tagged
points) `π`, the integral sum over `π` differs from the integral of `f` over the part of `I` covered
by `π` by at most `... | Mathlib/Analysis/BoxIntegral/Basic.lean | 364 | 369 |
/-
Copyright (c) 2014 Robert Y. Lewis. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Robert Y. Lewis, Leonardo de Moura, Mario Carneiro, Floris van Doorn
-/
import Mathlib.Algebra.Field.Basic
import Mathlib.Algebra.GroupWithZero.Units.Lemmas
import Mathlib.Algebra.Ord... | Mathlib/Algebra/Order/Field/Basic.lean | 827 | 828 | |
/-
Copyright (c) 2020 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Order.Interval.Set.OrderEmbedding
import Mathlib.Order.Antichain
import Mathlib.Order.SetNotation
/-!
# Order-connected sets
We say that a set `s :... | Mathlib/Order/Interval/Set/OrdConnected.lean | 340 | 345 | |
/-
Copyright (c) 2024 Joël Riou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joël Riou
-/
import Mathlib.CategoryTheory.Localization.CalculusOfFractions.Fractions
import Mathlib.CategoryTheory.Localization.HasLocalization
import Mathlib.CategoryTheory.Preadditive.Ad... | lemma add_eq_add {X'' Y'' : C} (eX' : L.obj X'' ≅ X') (eY' : L.obj Y'' ≅ Y')
(f₁ f₂ : X' ⟶ Y') :
add W eX eY f₁ f₂ = add W eX' eY' f₁ f₂ := by
have h₁ := comp_add W eX' eX eY (𝟙 _) f₁ f₂
have h₂ := add_comp W eX' eY eY' f₁ f₂ (𝟙 _)
simp only [id_comp] at h₁
simp only [comp_id] at h₂
rw [h₁, h₂]
| Mathlib/CategoryTheory/Localization/CalculusOfFractions/Preadditive.lean | 271 | 278 |
/-
Copyright (c) 2019 Yury Kudryashov. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yury Kudryashov
-/
import Mathlib.Order.Filter.Tendsto
import Mathlib.Order.ConditionallyCompleteLattice.Indexed
import Mathlib.Algebra.Order.Group.Defs
import Mathlib.Data.Finset.Lat... | IsMinFilter.max hf hg
theorem IsMaxOn.max (hf : IsMaxOn f s a) (hg : IsMaxOn g s a) :
| Mathlib/Order/Filter/Extr.lean | 516 | 518 |
/-
Copyright (c) 2022 Yaël Dillies. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yaël Dillies
-/
import Mathlib.Order.BooleanAlgebra
import Mathlib.Tactic.Common
/-!
# Co-Heyting boundary
The boundary of an element of a co-Heyting algebra is the intersection of its... | @[simp]
| Mathlib/Order/Heyting/Boundary.lean | 132 | 132 |
/-
Copyright (c) 2020 Aaron Anderson. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Aaron Anderson
-/
import Mathlib.Algebra.GCDMonoid.Finset
import Mathlib.Algebra.Polynomial.CancelLeads
import Mathlib.Algebra.Polynomial.EraseLead
import Mathlib.Algebra.Polynomial.Fi... | suffices h :
∀ (n : ℕ) (p q : R[X]), (p * q).degree < n → (p * q).content = p.content * q.content by
apply h
apply lt_of_le_of_lt degree_le_natDegree (WithBot.coe_lt_coe.2 (Nat.lt_succ_self _))
intro n
induction' n with n ih
· intro p q hpq
rw [Nat.cast_zero,
| Mathlib/RingTheory/Polynomial/Content.lean | 321 | 328 |
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Finset.Fold
import Mathlib.Data.Multiset.Bind
import Mathlib.Order.SetNotation
/-!
# Unions of finite sets
This file defines the union of a fami... | theorem image_biUnion [DecidableEq γ] {f : α → β} {s : Finset α} {t : β → Finset γ} :
(s.image f).biUnion t = s.biUnion fun a => t (f a) :=
haveI := Classical.decEq α
Finset.induction_on s rfl fun a s _ ih => by simp only [image_insert, biUnion_insert, ih]
theorem biUnion_image [DecidableEq γ] {s : Finset α} {... | Mathlib/Data/Finset/Union.lean | 257 | 263 |
/-
Copyright (c) 2022 Joël Riou. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joël Riou
-/
import Mathlib.AlgebraicTopology.SimplicialObject.Split
import Mathlib.AlgebraicTopology.DoldKan.Degeneracies
import Mathlib.AlgebraicTopology.DoldKan.FunctorN
/-!
# Split si... | erw [comp_id, comp_sum, Finset.sum_eq_single A, cofan_inj_πSummand_eq_id_assoc]
· intro B _ h₂
rw [s.cofan_inj_πSummand_eq_zero_assoc _ _ h₂, zero_comp]
· simp
@[reassoc (attr := simp)]
theorem σ_comp_πSummand_id_eq_zero {n : ℕ} (i : Fin (n + 1)) :
X.σ i ≫ s.πSummand (IndexSet.id (op ⦋n + 1⦌)) = 0 := by
... | Mathlib/AlgebraicTopology/DoldKan/SplitSimplicialObject.lean | 61 | 69 |
/-
Copyright (c) 2022 Adam Topaz. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Adam Topaz, Junyan Xu, Jack McKoen
-/
import Mathlib.RingTheory.Valuation.ValuationRing
import Mathlib.RingTheory.Localization.AsSubring
import Mathlib.Algebra.Ring.Subring.Pointwise
impor... |
theorem unitGroup_le_unitGroup {A B : ValuationSubring K} : A.unitGroup ≤ B.unitGroup ↔ A ≤ B := by
constructor
· intro h x hx
rw [← A.valuation_le_one_iff x, le_iff_lt_or_eq] at hx
| Mathlib/RingTheory/Valuation/ValuationSubring.lean | 446 | 450 |
/-
Copyright (c) 2015 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Multiset.ZeroCons
/-!
# Basic results on multisets
-/
-- No algebra should be required
assert_not_exists Monoid
universe v
open List S... | Mathlib/Data/Multiset/Basic.lean | 2,818 | 2,818 | |
/-
Copyright (c) 2021 Bhavik Mehta. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yaël Dillies, Bhavik Mehta
-/
import Mathlib.Combinatorics.SetFamily.Shadow
/-!
# UV-compressions
This file defines UV-compression. It is an operation on a set family that reduces its ... | rw [compress]
split_ifs with huvs
swap
· exact hs
rw [mem_shadow_iff] at hs'
obtain ⟨t, Ht, a, hat, rfl⟩ := hs'
| Mathlib/Combinatorics/SetFamily/Compression/UV.lean | 305 | 310 |
/-
Copyright (c) 2021 Yakov Pechersky. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Yakov Pechersky
-/
import Mathlib.Algebra.Polynomial.BigOperators
import Mathlib.Algebra.Polynomial.Degree.Lemmas
import Mathlib.LinearAlgebra.Matrix.Determinant.Basic
import Mathlib.... | refine (natDegree_sum_le _ _).trans ?_
refine Multiset.max_le_of_forall_le _ _ ?_
simp only [forall_apply_eq_imp_iff, true_and, Function.comp_apply, Multiset.map_map,
Multiset.mem_map, exists_imp, Finset.mem_univ_val]
intro g
calc
natDegree (sign g • ∏ i : n, (X • A.map C + B.map C : Matrix n n α[X]) ... | Mathlib/LinearAlgebra/Matrix/Polynomial.lean | 39 | 59 |
/-
Copyright (c) 2019 Floris van Doorn. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Floris van Doorn, Yury Kudryashov, Sébastien Gouëzel, Chris Hughes
-/
import Mathlib.Data.Fin.Rev
import Mathlib.Data.Nat.Find
/-!
# Operation on tuples
We interpret maps `∀ i : Fi... | | 0, _, _, _, hi => Option.noConfusion hi
| n + 1, p, I, i, hi => by
rw [find] at hi
rcases h : find fun i : Fin n ↦ p (i.castLT (Nat.lt_succ_of_lt i.2)) with - | j
· rw [h] at hi
| Mathlib/Data/Fin/Tuple/Basic.lean | 998 | 1,002 |
/-
Copyright (c) 2017 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Mario Carneiro, Patrick Massot, Yury Kudryashov, Rémy Degenne
-/
import Mathlib.Data.Set.Subsingleton
import Mathlib.Order.Interval.Set.Defs
/-!
# Intervals
In any pr... | Mathlib/Order/Interval/Set/Basic.lean | 1,826 | 1,827 | |
/-
Copyright (c) 2022 Thomas Browning. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Thomas Browning
-/
import Mathlib.GroupTheory.Abelianization
import Mathlib.GroupTheory.Commutator.Finite
import Mathlib.GroupTheory.Transfer
import Mathlib.Algebra.Group.Pointwise.Fi... | have h2 := card_commutator_dvd_index_center_pow (closureCommutatorRepresentatives G)
refine Nat.finite_of_card_ne_zero fun h => ?_
rw [card_commutator_closureCommutatorRepresentatives, h, zero_dvd_iff] at h2
exact FiniteIndex.index_ne_zero (pow_eq_zero h2)
end Subgroup
| Mathlib/GroupTheory/Schreier.lean | 222 | 234 |
/-
Copyright (c) 2017 Mario Carneiro. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Mario Carneiro
-/
import Mathlib.Data.Multiset.Dedup
/-!
# The fold operation for a commutative associative operation over a multiset.
-/
namespace Multiset
variable {α β : Type*}
... | rw [map_cons, fold_cons_left, h, map_cons, fold_cons_left, map_cons,
fold_cons_right, ha.assoc, ← ha.assoc (g a), hc.comm (g a),
ha.assoc, hc.comm (g a), ha.assoc])
theorem fold_hom {op' : β → β → β} [Std.Commutative op'] [Std.Associative op'] {m : α → β}
| Mathlib/Data/Multiset/Fold.lean | 75 | 79 |
/-
Copyright (c) 2018 Johannes Hölzl. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Johannes Hölzl, Julian Kuelshammer
-/
import Mathlib.Algebra.CharP.Defs
import Mathlib.Algebra.Group.Commute.Basic
import Mathlib.Algebra.Group.Pointwise.Set.Finite
import Mathlib.Alge... | lemma IsOfFinOrder.pow {n : ℕ} : IsOfFinOrder a → IsOfFinOrder (a ^ n) := by
simp_rw [isOfFinOrder_iff_pow_eq_one]
rintro ⟨m, hm, ha⟩
exact ⟨m, hm, by simp [pow_right_comm _ n, ha]⟩
| Mathlib/GroupTheory/OrderOfElement.lean | 100 | 103 |
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