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https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
bottcher_large_approx
[715, 1]
[741, 10]
rw [e]
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d e✝ : ∀ᶠ (z : ℂ) in atInf, s.bottcher c ↑z = s.bottcherNear c ↑z z : ℂ e : s.bottcher c ↑z = s.bottcherNear c ↑z ⊢ s.bottcher c ↑z * z = s.bottcherNear c ↑z * z
no goals
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d e✝ : ∀ᶠ (z : ℂ) in atInf, s.bottcher c ↑z = s.bottcherNear c ↑z z : ℂ e : s.bottcher c ↑z = s.bottcherNear c ↑z ⊢ s.bottcher c ↑z * z = s.bottcherNear c ↑z * z TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
bottcher_large_approx
[715, 1]
[741, 10]
simp only [one_div, map_inv₀] at zr ⊢
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d m : ∀ ε > 0, ∃ δ > 0, ∀ {x : ℂ}, Complex.abs x < δ → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < ε e : ℝ ep : e > 0 r : ℝ rp : r > 0 h : ∀ {x : ℂ}, Complex.abs x < r → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < e z : ℂ zr : 1 / r < Complex.abs z az0 : Complex.abs z ≠ 0 z0 : z ≠ 0 ⊢ Complex.abs z⁻¹ < r
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d m : ∀ ε > 0, ∃ δ > 0, ∀ {x : ℂ}, Complex.abs x < δ → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < ε e : ℝ ep : e > 0 r : ℝ rp : r > 0 h : ∀ {x : ℂ}, Complex.abs x < r → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < e z : ℂ az0 : Complex.abs z ≠ 0 z0 : z ≠ 0 zr : r⁻¹ < Complex.abs z ⊢ (Complex.abs z)⁻¹ < r
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d m : ∀ ε > 0, ∃ δ > 0, ∀ {x : ℂ}, Complex.abs x < δ → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < ε e : ℝ ep : e > 0 r : ℝ rp : r > 0 h : ∀ {x : ℂ}, Complex.abs x < r → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < e z : ℂ zr : 1 / r < Complex.abs z az0 : Complex.abs z ≠ 0 z0 : z ≠ 0 ⊢ Complex.abs z⁻¹ < r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
bottcher_large_approx
[715, 1]
[741, 10]
exact inv_lt_of_inv_lt rp zr
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d m : ∀ ε > 0, ∃ δ > 0, ∀ {x : ℂ}, Complex.abs x < δ → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < ε e : ℝ ep : e > 0 r : ℝ rp : r > 0 h : ∀ {x : ℂ}, Complex.abs x < r → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < e z : ℂ az0 : Complex.abs z ≠ 0 z0 : z ≠ 0 zr : r⁻¹ < Complex.abs z ⊢ (Complex.abs z)⁻¹ < r
no goals
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d m : ∀ ε > 0, ∃ δ > 0, ∀ {x : ℂ}, Complex.abs x < δ → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < ε e : ℝ ep : e > 0 r : ℝ rp : r > 0 h : ∀ {x : ℂ}, Complex.abs x < r → (Complex.abs x)⁻¹ * Complex.abs (bottcherNear (s.fl c) d x - x) < e z : ℂ az0 : Complex.abs z ≠ 0 z0 : z ≠ 0 zr : r⁻¹ < Complex.abs z ⊢ (Complex.abs z)⁻¹ < r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
potential_tendsto
[744, 1]
[748, 85]
set s := superF d
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ ⊢ Tendsto (fun z => ⋯.potential c ↑z * Complex.abs z) atInf (𝓝 1)
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => s.potential c ↑z * Complex.abs z) atInf (𝓝 1)
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ ⊢ Tendsto (fun z => ⋯.potential c ↑z * Complex.abs z) atInf (𝓝 1) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
potential_tendsto
[744, 1]
[748, 85]
simp only [← s.abs_bottcher, ← Complex.abs.map_mul, ← Complex.abs.map_one]
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => s.potential c ↑z * Complex.abs z) atInf (𝓝 1)
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => Complex.abs (s.bottcher c ↑z * z)) atInf (𝓝 (Complex.abs 1))
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => s.potential c ↑z * Complex.abs z) atInf (𝓝 1) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Dynamics/Multibrot/Basic.lean
potential_tendsto
[744, 1]
[748, 85]
exact Complex.continuous_abs.continuousAt.tendsto.comp (bottcher_large_approx d c)
c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => Complex.abs (s.bottcher c ↑z * z)) atInf (𝓝 (Complex.abs 1))
no goals
Please generate a tactic in lean4 to solve the state. STATE: c✝ : ℂ d✝ : ℕ inst✝¹ : Fact (2 ≤ d✝) d : ℕ inst✝ : Fact (2 ≤ d) c : ℂ s : Super (f d) d ∞ := superF d ⊢ Tendsto (fun z => Complex.abs (s.bottcher c ↑z * z)) atInf (𝓝 (Complex.abs 1)) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
apply Filter.hasBasis_iInf_principal
X : Type inst✝ : Norm X ⊢ atInf.HasBasis (fun x => True) fun r => {x | r < ‖x‖}
case h X : Type inst✝ : Norm X ⊢ Directed (fun x x_1 => x ≥ x_1) fun i => {x | i < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X ⊢ atInf.HasBasis (fun x => True) fun r => {x | r < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
apply directed_of_isDirected_le
case h X : Type inst✝ : Norm X ⊢ Directed (fun x x_1 => x ≥ x_1) fun i => {x | i < ‖x‖}
case h.H X : Type inst✝ : Norm X ⊢ ∀ ⦃i j : ℝ⦄, i ≤ j → {x | i < ‖x‖} ≥ {x | j < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h X : Type inst✝ : Norm X ⊢ Directed (fun x x_1 => x ≥ x_1) fun i => {x | i < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
intro a b ab
case h.H X : Type inst✝ : Norm X ⊢ ∀ ⦃i j : ℝ⦄, i ≤ j → {x | i < ‖x‖} ≥ {x | j < ‖x‖}
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ {x | a < ‖x‖} ≥ {x | b < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h.H X : Type inst✝ : Norm X ⊢ ∀ ⦃i j : ℝ⦄, i ≤ j → {x | i < ‖x‖} ≥ {x | j < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
simp only [ge_iff_le, le_eq_subset, setOf_subset_setOf]
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ {x | a < ‖x‖} ≥ {x | b < ‖x‖}
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ ∀ (a_1 : X), b < ‖a_1‖ → a < ‖a_1‖
Please generate a tactic in lean4 to solve the state. STATE: case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ {x | a < ‖x‖} ≥ {x | b < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
intro x h
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ ∀ (a_1 : X), b < ‖a_1‖ → a < ‖a_1‖
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b x : X h : b < ‖x‖ ⊢ a < ‖x‖
Please generate a tactic in lean4 to solve the state. STATE: case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b ⊢ ∀ (a_1 : X), b < ‖a_1‖ → a < ‖a_1‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_basis
[25, 1]
[28, 93]
linarith
case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b x : X h : b < ‖x‖ ⊢ a < ‖x‖
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.H X : Type inst✝ : Norm X a b : ℝ ab : a ≤ b x : X h : b < ‖x‖ ⊢ a < ‖x‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf
[36, 1]
[38, 74]
rw [atInf_basis.tendsto_right_iff]
X Y : Type inst✝ : Norm Y f : X → Y l : Filter X ⊢ Tendsto f l atInf ↔ ∀ (r : ℝ), ∀ᶠ (x : X) in l, r < ‖f x‖
X Y : Type inst✝ : Norm Y f : X → Y l : Filter X ⊢ (∀ (i : ℝ), True → ∀ᶠ (x : X) in l, f x ∈ {x | i < ‖x‖}) ↔ ∀ (r : ℝ), ∀ᶠ (x : X) in l, r < ‖f x‖
Please generate a tactic in lean4 to solve the state. STATE: X Y : Type inst✝ : Norm Y f : X → Y l : Filter X ⊢ Tendsto f l atInf ↔ ∀ (r : ℝ), ∀ᶠ (x : X) in l, r < ‖f x‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf
[36, 1]
[38, 74]
simp only [true_imp_iff, mem_setOf]
X Y : Type inst✝ : Norm Y f : X → Y l : Filter X ⊢ (∀ (i : ℝ), True → ∀ᶠ (x : X) in l, f x ∈ {x | i < ‖x‖}) ↔ ∀ (r : ℝ), ∀ᶠ (x : X) in l, r < ‖f x‖
no goals
Please generate a tactic in lean4 to solve the state. STATE: X Y : Type inst✝ : Norm Y f : X → Y l : Filter X ⊢ (∀ (i : ℝ), True → ∀ᶠ (x : X) in l, f x ∈ {x | i < ‖x‖}) ↔ ∀ (r : ℝ), ∀ᶠ (x : X) in l, r < ‖f x‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atTop_atInf
[41, 1]
[45, 12]
have h := Filter.HasBasis.tendsto_iff (f := f) Filter.atTop_basis atInf_basis
X : Type inst✝ : Norm X f : ℕ → X ⊢ Tendsto f atTop atInf ↔ ∀ (r : ℝ), ∃ N, ∀ (n : ℕ), N ≤ n → r < ‖f n‖
X : Type inst✝ : Norm X f : ℕ → X h : Tendsto f atTop atInf ↔ ∀ (ib : ℝ), True → ∃ ia, True ∧ ∀ x ∈ Ici ia, f x ∈ {x | ib < ‖x‖} ⊢ Tendsto f atTop atInf ↔ ∀ (r : ℝ), ∃ N, ∀ (n : ℕ), N ≤ n → r < ‖f n‖
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X f : ℕ → X ⊢ Tendsto f atTop atInf ↔ ∀ (r : ℝ), ∃ N, ∀ (n : ℕ), N ≤ n → r < ‖f n‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atTop_atInf
[41, 1]
[45, 12]
simpa only [mem_Ici, ge_iff_le, mem_setOf_eq, exists_true_left, forall_true_left, true_and] using h
X : Type inst✝ : Norm X f : ℕ → X h : Tendsto f atTop atInf ↔ ∀ (ib : ℝ), True → ∃ ia, True ∧ ∀ x ∈ Ici ia, f x ∈ {x | ib < ‖x‖} ⊢ Tendsto f atTop atInf ↔ ∀ (r : ℝ), ∃ N, ∀ (n : ℕ), N ≤ n → r < ‖f n‖
no goals
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X f : ℕ → X h : Tendsto f atTop atInf ↔ ∀ (ib : ℝ), True → ∃ ia, True ∧ ∀ x ∈ Ici ia, f x ∈ {x | ib < ‖x‖} ⊢ Tendsto f atTop atInf ↔ ∀ (r : ℝ), ∃ N, ∀ (n : ℕ), N ≤ n → r < ‖f n‖ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_norm_tendsto_atTop
[48, 1]
[51, 78]
rw [Filter.atTop_basis_Ioi.tendsto_right_iff]
X Y : Type inst✝ : Norm Y f : Filter X g : X → Y ⊢ Tendsto (fun x => g x) f atInf ↔ Tendsto (fun x => ‖g x‖) f atTop
X Y : Type inst✝ : Norm Y f : Filter X g : X → Y ⊢ Tendsto (fun x => g x) f atInf ↔ ∀ (i : ℝ), True → ∀ᶠ (x : X) in f, ‖g x‖ ∈ Ioi i
Please generate a tactic in lean4 to solve the state. STATE: X Y : Type inst✝ : Norm Y f : Filter X g : X → Y ⊢ Tendsto (fun x => g x) f atInf ↔ Tendsto (fun x => ‖g x‖) f atTop TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_norm_tendsto_atTop
[48, 1]
[51, 78]
simp only [atInf_basis.tendsto_right_iff, true_imp_iff, mem_setOf, mem_Ioi]
X Y : Type inst✝ : Norm Y f : Filter X g : X → Y ⊢ Tendsto (fun x => g x) f atInf ↔ ∀ (i : ℝ), True → ∀ᶠ (x : X) in f, ‖g x‖ ∈ Ioi i
no goals
Please generate a tactic in lean4 to solve the state. STATE: X Y : Type inst✝ : Norm Y f : Filter X g : X → Y ⊢ Tendsto (fun x => g x) f atInf ↔ ∀ (i : ℝ), True → ∀ᶠ (x : X) in f, ‖g x‖ ∈ Ioi i TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
mem_atInf_iff
[54, 1]
[56, 79]
simp only [Filter.hasBasis_iff.mp atInf_basis s, exists_true_left, true_and]
X : Type inst✝ : Norm X s : Set X ⊢ s ∈ atInf ↔ ∃ r, {x | ‖x‖ > r} ⊆ s
no goals
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X s : Set X ⊢ s ∈ atInf ↔ ∃ r, {x | ‖x‖ > r} ⊆ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
eventually_atInf
[59, 1]
[60, 51]
rw [Filter.eventually_iff, mem_atInf_iff]
X : Type inst✝ : Norm X r : ℝ ⊢ ∀ᶠ (x : X) in atInf, ‖x‖ > r
X : Type inst✝ : Norm X r : ℝ ⊢ ∃ r_1, {x | ‖x‖ > r_1} ⊆ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X r : ℝ ⊢ ∀ᶠ (x : X) in atInf, ‖x‖ > r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
eventually_atInf
[59, 1]
[60, 51]
use r
X : Type inst✝ : Norm X r : ℝ ⊢ ∃ r_1, {x | ‖x‖ > r_1} ⊆ {x | ‖x‖ > r}
no goals
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : Norm X r : ℝ ⊢ ∃ r_1, {x | ‖x‖ > r_1} ⊆ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
rw [Filter.HasBasis.tendsto_left_iff atInf_basis, Metric.nhdsWithin_basis_ball.tendsto_left_iff]
𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ Tendsto f atInf l ↔ Tendsto (fun x => f x⁻¹) (𝓝[≠] 0) l
𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) ↔ ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ Tendsto f atInf l ↔ Tendsto (fun x => f x⁻¹) (𝓝[≠] 0) l TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
constructor
𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) ↔ ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) → ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t) → ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) ↔ ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
intro h t tl
case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) → ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t) → ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
rcases h t tl with ⟨r, _, m⟩
case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case mp.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case mp 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
by_cases rp : 0 < r
case mp.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case pos 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t case neg 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case mp.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
use r⁻¹
case pos 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ 0 < r⁻¹ ∧ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case pos 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [rp, inv_pos, true_and_iff]
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ 0 < r⁻¹ ∧ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ 0 < r⁻¹ ∧ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
intro x xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 r⁻¹ ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
refine m ?_
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [mem_inter_iff, mem_ball_zero_iff, mem_compl_iff, mem_singleton_iff] at xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖}
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : ‖x‖ < r⁻¹ ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : x ∈ ball 0 r⁻¹ ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [← lt_inv (norm_pos_iff.mpr xs.2) rp, xs.1, mem_setOf_eq, norm_inv]
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : ‖x‖ < r⁻¹ ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖}
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : 0 < r x : 𝕜 xs : ‖x‖ < r⁻¹ ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
use 1
case neg 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ 0 < 1 ∧ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case neg 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [zero_lt_one, true_and_iff]
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ 0 < 1 ∧ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ 0 < 1 ∧ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
intro x xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r ⊢ MapsTo (fun x => f x⁻¹) (ball 0 1 ∩ {0}ᶜ) t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
refine m ?_
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ (fun x => f x⁻¹) x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [mem_inter_iff, mem_ball_zero_iff, mem_compl_iff, mem_singleton_iff] at xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖}
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖}
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : x ∈ ball 0 1 ∩ {0}ᶜ ⊢ x⁻¹ ∈ {x | r < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [mem_setOf_eq, norm_inv]
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖}
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ r < ‖x‖⁻¹
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ x⁻¹ ∈ {x | r < ‖x‖} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [not_lt] at rp
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ r < ‖x‖⁻¹
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 rp : r ≤ 0 ⊢ r < ‖x‖⁻¹
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t rp : ¬0 < r x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 ⊢ r < ‖x‖⁻¹ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
exact lt_of_le_of_lt rp (inv_pos.mpr (norm_pos_iff.mpr xs.2))
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 rp : r ≤ 0 ⊢ r < ‖x‖⁻¹
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t t : Set X tl : t ∈ l r : ℝ left✝ : True m : MapsTo f {x | r < ‖x‖} t x : 𝕜 xs : ‖x‖ < 1 ∧ ¬x = 0 rp : r ≤ 0 ⊢ r < ‖x‖⁻¹ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
intro h t tl
case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t) → ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
Please generate a tactic in lean4 to solve the state. STATE: case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X ⊢ (∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t) → ∀ t ∈ l, ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
rcases h t tl with ⟨r, rp, m⟩
case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
case mpr.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
Please generate a tactic in lean4 to solve the state. STATE: case mpr 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
use r⁻¹
case mpr.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ True ∧ MapsTo f {x | r⁻¹ < ‖x‖} t
Please generate a tactic in lean4 to solve the state. STATE: case mpr.intro.intro 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ ∃ i, True ∧ MapsTo f {x | i < ‖x‖} t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [true_and_iff]
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ True ∧ MapsTo f {x | r⁻¹ < ‖x‖} t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ MapsTo f {x | r⁻¹ < ‖x‖} t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ True ∧ MapsTo f {x | r⁻¹ < ‖x‖} t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
intro x xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ MapsTo f {x | r⁻¹ < ‖x‖} t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : x ∈ {x | r⁻¹ < ‖x‖} ⊢ f x ∈ t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t ⊢ MapsTo f {x | r⁻¹ < ‖x‖} t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [mem_setOf_eq] at xs
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : x ∈ {x | r⁻¹ < ‖x‖} ⊢ f x ∈ t
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ f x ∈ t
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : x ∈ {x | r⁻¹ < ‖x‖} ⊢ f x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
have m := @m x⁻¹ ?_
case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ f x ∈ t
case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : (fun x => f x⁻¹) x⁻¹ ∈ t ⊢ f x ∈ t case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ x⁻¹ ∈ ball 0 r ∩ {0}ᶜ
Please generate a tactic in lean4 to solve the state. STATE: case h 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ f x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [mem_inter_iff, mem_ball_zero_iff, norm_inv, mem_compl_iff, mem_singleton_iff, inv_eq_zero]
case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ x⁻¹ ∈ ball 0 r ∩ {0}ᶜ
case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0
Please generate a tactic in lean4 to solve the state. STATE: case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ x⁻¹ ∈ ball 0 r ∩ {0}ᶜ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
have np : 0 < ‖x‖ := _root_.trans (inv_pos.mpr rp) xs
case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0
case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ np : 0 < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0
Please generate a tactic in lean4 to solve the state. STATE: case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp [inv_lt np rp, xs, norm_pos_iff.mp np]
case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ np : 0 < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.refine_1 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ np : 0 < ‖x‖ ⊢ ‖x‖⁻¹ < r ∧ ¬x = 0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
simp only [inv_inv] at m
case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : (fun x => f x⁻¹) x⁻¹ ∈ t ⊢ f x ∈ t
case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : f x ∈ t ⊢ f x ∈ t
Please generate a tactic in lean4 to solve the state. STATE: case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : (fun x => f x⁻¹) x⁻¹ ∈ t ⊢ f x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
tendsto_atInf_iff_tendsto_nhds_zero
[63, 1]
[82, 48]
exact m
case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : f x ∈ t ⊢ f x ∈ t
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.refine_2 𝕜 X : Type inst✝ : NontriviallyNormedField 𝕜 l : Filter X f : 𝕜 → X h : ∀ t ∈ l, ∃ i, 0 < i ∧ MapsTo (fun x => f x⁻¹) (ball 0 i ∩ {0}ᶜ) t t : Set X tl : t ∈ l r : ℝ rp : 0 < r m✝ : MapsTo (fun x => f x⁻¹) (ball 0 r ∩ {0}ᶜ) t x : 𝕜 xs : r⁻¹ < ‖x‖ m : f x ∈ t ⊢ f x ∈ t TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
rw [Filter.le_def]
X : Type inst✝ : NormedAddCommGroup X ⊢ atInf ≤ Filter.cocompact X
X : Type inst✝ : NormedAddCommGroup X ⊢ ∀ x ∈ Filter.cocompact X, x ∈ atInf
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : NormedAddCommGroup X ⊢ atInf ≤ Filter.cocompact X TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
intro s m
X : Type inst✝ : NormedAddCommGroup X ⊢ ∀ x ∈ Filter.cocompact X, x ∈ atInf
X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X ⊢ s ∈ atInf
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : NormedAddCommGroup X ⊢ ∀ x ∈ Filter.cocompact X, x ∈ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
rcases Filter.mem_cocompact.mp m with ⟨t, tc, ts⟩
X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X ⊢ s ∈ atInf
case intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s ⊢ s ∈ atInf
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X ⊢ s ∈ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
rcases tc.bddAbove_image continuousOn_id.norm with ⟨r, rh⟩
case intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s ⊢ s ∈ atInf
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : r ∈ upperBounds ((fun x => ‖id x‖) '' t) ⊢ s ∈ atInf
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s ⊢ s ∈ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
simp only [id_eq, mem_upperBounds, mem_image, forall_exists_index, and_imp, forall_apply_eq_imp_iff₂] at rh
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : r ∈ upperBounds ((fun x => ‖id x‖) '' t) ⊢ s ∈ atInf
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ s ∈ atInf
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : r ∈ upperBounds ((fun x => ‖id x‖) '' t) ⊢ s ∈ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
rw [mem_atInf_iff]
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ s ∈ atInf
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ ∃ r, {x | ‖x‖ > r} ⊆ s
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ s ∈ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
use r
case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ ∃ r, {x | ‖x‖ > r} ⊆ s
case h X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ {x | ‖x‖ > r} ⊆ s
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ ∃ r, {x | ‖x‖ > r} ⊆ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
intro x m
case h X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ {x | ‖x‖ > r} ⊆ s
case h X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ s
Please generate a tactic in lean4 to solve the state. STATE: case h X : Type inst✝ : NormedAddCommGroup X s : Set X m : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r ⊢ {x | ‖x‖ > r} ⊆ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
apply ts
case h X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ s
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ tᶜ
Please generate a tactic in lean4 to solve the state. STATE: case h X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
contrapose m
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ tᶜ
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∉ tᶜ ⊢ x ∉ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ {x | ‖x‖ > r} ⊢ x ∈ tᶜ TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
simp only [mem_compl_iff, not_not_mem] at m
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∉ tᶜ ⊢ x ∉ {x | ‖x‖ > r}
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ x ∉ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∉ tᶜ ⊢ x ∉ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
simp only [mem_setOf_eq, not_lt]
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ x ∉ {x | ‖x‖ > r}
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ ‖x‖ ≤ r
Please generate a tactic in lean4 to solve the state. STATE: case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ x ∉ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_le_cocompact
[85, 1]
[95, 15]
exact rh _ m
case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ ‖x‖ ≤ r
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.a X : Type inst✝ : NormedAddCommGroup X s : Set X m✝ : s ∈ Filter.cocompact X t : Set X tc : IsCompact t ts : tᶜ ⊆ s r : ℝ rh : ∀ a ∈ t, ‖a‖ ≤ r x : X m : x ∈ t ⊢ ‖x‖ ≤ r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
apply le_antisymm atInf_le_cocompact
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ atInf = Filter.cocompact X
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ Filter.cocompact X ≤ atInf
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ atInf = Filter.cocompact X TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
rw [Filter.le_def]
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ Filter.cocompact X ≤ atInf
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ ∀ x ∈ atInf, x ∈ Filter.cocompact X
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ Filter.cocompact X ≤ atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
intro s m
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ ∀ x ∈ atInf, x ∈ Filter.cocompact X
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf ⊢ s ∈ Filter.cocompact X
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X ⊢ ∀ x ∈ atInf, x ∈ Filter.cocompact X TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
rcases mem_atInf_iff.mp m with ⟨r, h⟩
X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf ⊢ s ∈ Filter.cocompact X
case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ s ∈ Filter.cocompact X
Please generate a tactic in lean4 to solve the state. STATE: X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf ⊢ s ∈ Filter.cocompact X TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
rw [Filter.mem_cocompact]
case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ s ∈ Filter.cocompact X
case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ ∃ t, IsCompact t ∧ tᶜ ⊆ s
Please generate a tactic in lean4 to solve the state. STATE: case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ s ∈ Filter.cocompact X TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
use closedBall 0 r, isCompact_closedBall _ _
case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ ∃ t, IsCompact t ∧ tᶜ ⊆ s
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ s
Please generate a tactic in lean4 to solve the state. STATE: case intro X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ ∃ t, IsCompact t ∧ tᶜ ⊆ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
refine _root_.trans ?_ h
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ s
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ s TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
intro x xs
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ {x | ‖x‖ > r}
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : x ∈ (closedBall 0 r)ᶜ ⊢ x ∈ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s ⊢ (closedBall 0 r)ᶜ ⊆ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
simp only [mem_compl_iff, mem_closedBall_zero_iff, not_le] at xs
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : x ∈ (closedBall 0 r)ᶜ ⊢ x ∈ {x | ‖x‖ > r}
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : r < ‖x‖ ⊢ x ∈ {x | ‖x‖ > r}
Please generate a tactic in lean4 to solve the state. STATE: case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : x ∈ (closedBall 0 r)ᶜ ⊢ x ∈ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
atInf_eq_cocompact
[98, 1]
[104, 77]
exact xs
case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : r < ‖x‖ ⊢ x ∈ {x | ‖x‖ > r}
no goals
Please generate a tactic in lean4 to solve the state. STATE: case right X : Type inst✝¹ : NormedAddCommGroup X inst✝ : ProperSpace X s : Set X m : s ∈ atInf r : ℝ h : {x | ‖x‖ > r} ⊆ s x : X xs : r < ‖x‖ ⊢ x ∈ {x | ‖x‖ > r} TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
inv_tendsto_atInf
[107, 1]
[109, 90]
rw [←tendsto_atInf_iff_tendsto_nhds_zero (f := fun x : 𝕜 ↦ x)]
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x⁻¹) (𝓝[≠] 0) atInf
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) atInf atInf
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x⁻¹) (𝓝[≠] 0) atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
inv_tendsto_atInf
[107, 1]
[109, 90]
exact Filter.tendsto_id
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) atInf atInf
no goals
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) atInf atInf TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
inv_tendsto_atInf'
[112, 1]
[115, 55]
simp only [tendsto_atInf_iff_tendsto_nhds_zero, inv_inv]
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x⁻¹) atInf (𝓝 0)
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) (𝓝[≠] 0) (𝓝 0)
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x⁻¹) atInf (𝓝 0) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Misc/AtInf.lean
inv_tendsto_atInf'
[112, 1]
[115, 55]
exact Filter.tendsto_id.mono_left nhdsWithin_le_nhds
𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) (𝓝[≠] 0) (𝓝 0)
no goals
Please generate a tactic in lean4 to solve the state. STATE: 𝕜 : Type inst✝ : NontriviallyNormedField 𝕜 ⊢ Tendsto (fun x => x) (𝓝[≠] 0) (𝓝 0) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
intro c0 c1 cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s ⊢ ∀ (c0 c1 : ℂ), (c0, c1) ∈ swap '' s → AnalyticAt ℂ (fun z0 => (f ∘ swap) (z0, c1)) c0
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => (f ∘ swap) (z0, c1)) c0
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s ⊢ ∀ (c0 c1 : ℂ), (c0, c1) ∈ swap '' s → AnalyticAt ℂ (fun z0 => (f ∘ swap) (z0, c1)) c0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
simp only [Function.comp_apply, Prod.swap_prod_mk]
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => (f ∘ swap) (z0, c1)) c0
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => (f ∘ swap) (z0, c1)) c0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
rw [swap_mem] at cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
exact h.fa1 c1 c0 cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0
no goals
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z0 => f (c1, z0)) c0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
intro c0 c1 cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s ⊢ ∀ (c0 c1 : ℂ), (c0, c1) ∈ swap '' s → AnalyticAt ℂ (fun z1 => (f ∘ swap) (c0, z1)) c1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => (f ∘ swap) (c0, z1)) c1
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s ⊢ ∀ (c0 c1 : ℂ), (c0, c1) ∈ swap '' s → AnalyticAt ℂ (fun z1 => (f ∘ swap) (c0, z1)) c1 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
simp only [Function.comp_apply, Prod.swap_prod_mk]
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => (f ∘ swap) (c0, z1)) c1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => (f ∘ swap) (c0, z1)) c1 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
rw [swap_mem] at cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c0, c1) ∈ swap '' s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.flip
[70, 1]
[77, 46]
exact h.fa0 c1 c0 cs
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1
no goals
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0✝ c0' c1✝ z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f s c0 c1 : ℂ cs : (c1, c0) ∈ s ⊢ AnalyticAt ℂ (fun z1 => f (z1, c0)) c1 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on0
[85, 1]
[90, 19]
intro z0 z0s
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r ⊢ AnalyticOn ℂ (fun z0 => f (z0, z1)) (closedBall c0 r)
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ AnalyticAt ℂ (fun z0 => f (z0, z1)) z0
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r ⊢ AnalyticOn ℂ (fun z0 => f (z0, z1)) (closedBall c0 r) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on0
[85, 1]
[90, 19]
apply h.fa0 z0 z1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ AnalyticAt ℂ (fun z0 => f (z0, z1)) z0
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ AnalyticAt ℂ (fun z0 => f (z0, z1)) z0 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on0
[85, 1]
[90, 19]
rw [← closedBall_prod_same]
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on0
[85, 1]
[90, 19]
simp only [Set.prod_mk_mem_set_prod_eq, Metric.mem_closedBall] at z0s ⊢
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : dist z0 c0 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : z0 ∈ closedBall c0 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on0
[85, 1]
[90, 19]
exact ⟨z0s, z1r⟩
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : dist z0 c0 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r
no goals
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0✝ z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z1r : z1 ∈ closedBall c1 r z0 : ℂ z0s : dist z0 c0 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on1
[93, 1]
[98, 19]
intro z1 z1s
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r ⊢ AnalyticOn ℂ (fun z1 => f (z0, z1)) (closedBall c1 r)
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ AnalyticAt ℂ (fun z1 => f (z0, z1)) z1
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r ⊢ AnalyticOn ℂ (fun z1 => f (z0, z1)) (closedBall c1 r) TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on1
[93, 1]
[98, 19]
apply h.fa1 z0 z1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ AnalyticAt ℂ (fun z1 => f (z0, z1)) z1
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ AnalyticAt ℂ (fun z1 => f (z0, z1)) z1 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on1
[93, 1]
[98, 19]
rw [← closedBall_prod_same]
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall (c0, c1) r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on1
[93, 1]
[98, 19]
simp only [Set.prod_mk_mem_set_prod_eq, Metric.mem_closedBall] at z1s ⊢
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : dist z1 c1 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : z1 ∈ closedBall c1 r ⊢ (z0, z1) ∈ closedBall c0 r ×ˢ closedBall c1 r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Har.on1
[93, 1]
[98, 19]
exact ⟨z0r, z1s⟩
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : dist z1 c1 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r
no goals
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1✝ w0 w1 : ℂ r r0 r1 b e : ℝ h : Har f (closedBall (c0, c1) r) z0r : z0 ∈ closedBall c0 r z1 : ℂ z1s : dist z1 c1 ≤ r ⊢ dist z0 c0 ≤ r ∧ dist z1 c1 ≤ r TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Bounded.dist0
[101, 1]
[136, 8]
generalize hu : min (r / 2) (e * r / b / 24) = u
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s wz : dist w z < min (r / 2) (e * r / b / 24) fb : ∀ z ∈ s, ‖f z‖ ≤ b ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s wz : dist w z < min (r / 2) (e * r / b / 24) fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s wz : dist w z < min (r / 2) (e * r / b / 24) fb : ∀ z ∈ s, ‖f z‖ ≤ b ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Bounded.dist0
[101, 1]
[136, 8]
rw [hu] at wz
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s wz : dist w z < min (r / 2) (e * r / b / 24) fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ wz : dist w z < u hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s wz : dist w z < min (r / 2) (e * r / b / 24) fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4 TACTIC:
https://github.com/girving/ray.git
0be790285dd0fce78913b0cb9bddaffa94bd25f9
Ray/Hartogs/Hartogs.lean
Bounded.dist0
[101, 1]
[136, 8]
have up : 0 < u := by rw [← hu]; simp only [gt_iff_lt, lt_min_iff] exact ⟨by bound, by bound⟩
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ wz : dist w z < u hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ wz : dist w z < u hu : min (r / 2) (e * r / b / 24) = u up : 0 < u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4
Please generate a tactic in lean4 to solve the state. STATE: E : Type inst✝³ : NormedAddCommGroup E inst✝² : NormedSpace ℂ E inst✝¹ : CompleteSpace E inst✝ : SecondCountableTopology E f : ℂ × ℂ → E s : Set (ℂ × ℂ) c0 c0' c1 z0 z1 w0 w1 : ℂ r✝ r0 r1 b✝ e✝ : ℝ h : Har f s z w : ℂ × ℂ b e r : ℝ bp : 0 < b ep : 0 < e rp : 0 < r rs : ball z (r / 2) ⊆ s fb : ∀ z ∈ s, ‖f z‖ ≤ b u : ℝ wz : dist w z < u hu : min (r / 2) (e * r / b / 24) = u ⊢ dist (f w) (f (z.1, w.2)) ≤ e / 4 TACTIC: