mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.Basic

Goal state before:
pp: ⊢ strongAnodyneExtensions ≤ anodyneExtensions

Tactic:
by
  rintro X Y f ⟨_, P, _⟩
  rw [← Subfunctor.toRange_ι f]
  exact comp_mem _ _ _ (.of_isIso _) P.anodyneExtensions

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.UnionProd

Goal state before:
pp: m : ℕ
k : Fin (m + 1)
n : ℕ
x : (Λ[m + 1, k.castSucc].unionProd ∂Δ[n]).N
i : Fin (m + 2)
hi : i ≠ k.castSucc
this :
  x.simplex.2 ∉ ∂Δ[n].obj (Opposite.op ⦋x.dim⦌) ∧
    ∀ (x_1 : Fin (m + 1 + 1)), ¬x_1 = k.castSucc → ∃ x_2, x.simplex.1 x_2 = x_1
⊢ i ∈ Set.range ⇑(x.cast ⋯).simplex.1

Tactic:
tauto

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.UnionProd

Goal state before:
pp: m : ℕ
k : Fin (m + 1)
n : ℕ
x : (Λ[m + 1, k.castSucc].unionProd ∂Δ[n]).N
i : Fin (n + 1)
this :
  (∀ (x_1 : Fin (n + 1)), ∃ x_2, x.simplex.2 x_2 = x_1) ∧ x.simplex.1 ∉ Λ[m + 1, k.castSucc].obj (Opposite.op ⦋x.dim⦌)
⊢ i ∈ Set.range ⇑(x.cast ⋯).simplex.2

Tactic:
tauto

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.UnionProd

Goal state before:
pp: case refine_1.inl
m : ℕ
k : Fin (m + 1)
n : ℕ
x : (Λ[m + 1, k.castSucc].unionProd ∂Δ[n]).N
d : ℕ
hd : x.dim = d
i : Fin (d + 1)
h✝ : k.succ ≤ (x.cast hd).simplex.1 i
h : k.succ < (x.cast hd).simplex.1 i
h' : i < min x hd
this : ¬k.succ < (x.cast hd).simplex.1 i
⊢ False

Tactic:
tauto

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.UnionProd

Goal state before:
pp: m : ℕ
k : Fin (m + 1)
n : ℕ
x : (Λ[m + 1, k.castSucc].unionProd ∂Δ[n]).N
d : ℕ
hd : x.dim = d
l : Fin d
hl : IsIndex x hd l.succ
l' : Fin d
hl' : IsIndex x hd l'.succ
⊢ l = l'

Tactic:
← Fin.succ_inj,

Goal state after:
m : ℕ
k : Fin (m + 1)
n : ℕ
x : (Λ[m + 1, k.castSucc].unionProd ∂Δ[n]).N
d : ℕ
hd : x.dim = d
l : Fin d
hl : IsIndex x hd l.succ
l' : Fin d
hl' : IsIndex x hd l'.succ
⊢ l.succ = l'.succ
Module: Mathlib.CategoryTheory.Limits.Shapes.Pullback.PullbackObjObj

Goal state before:
pp: C₁ : Type u₁
C₂ : Type u₂
C₃ : Type u₃
inst✝⁴ : Category.{v₁, u₁} C₁
inst✝³ : Category.{v₂, u₂} C₂
inst✝² : Category.{v₃, u₃} C₃
F : C₁ ⥤ C₂ ⥤ C₃
G : C₁ᵒᵖ ⥤ C₃ ⥤ C₂
X₁ Y₁ : C₁
f₁ : X₁ ⟶ Y₁
X₂ Y₂ : C₂
f₂ : X₂ ⟶ Y₂
sq : F.PushoutObjObj f₁ f₂
inst✝¹ : PreservesColimitsOfShape (Discrete PEmpty.{1}) (F.flip.obj X₂)
inst✝ : PreservesColimitsOfShape (Discrete PEmpty.{1}) (F.flip.obj Y₂)
h : IsInitial X₁
hX₂ : IsInitial ((F.flip.obj X₂).obj X₁) := IsInitial.isInitialObj (F.flip.obj X₂) X₁ h
⊢ IsPushout ((F.map f₁).app X₂) ((F.obj X₁).map f₂) (𝟙 ((F.obj Y₁).obj X₂))
    ((IsInitial.isInitialObj (F.flip.obj Y₂) X₁ h).to ((F.obj Y₁).obj X₂))

Tactic:
let hY₂ := IsInitial.isInitialObj (F.flip.obj Y₂) _ h

Goal state after:
C₁ : Type u₁
C₂ : Type u₂
C₃ : Type u₃
inst✝⁴ : Category.{v₁, u₁} C₁
inst✝³ : Category.{v₂, u₂} C₂
inst✝² : Category.{v₃, u₃} C₃
F : C₁ ⥤ C₂ ⥤ C₃
G : C₁ᵒᵖ ⥤ C₃ ⥤ C₂
X₁ Y₁ : C₁
f₁ : X₁ ⟶ Y₁
X₂ Y₂ : C₂
f₂ : X₂ ⟶ Y₂
sq : F.PushoutObjObj f₁ f₂
inst✝¹ : PreservesColimitsOfShape (Discrete PEmpty.{1}) (F.flip.obj X₂)
inst✝ : PreservesColimitsOfShape (Discrete PEmpty.{1}) (F.flip.obj Y₂)
h : IsInitial X₁
hX₂ : IsInitial ((F.flip.obj X₂).obj X₁) := IsInitial.isInitialObj (F.flip.obj X₂) X₁ h
hY₂ : IsInitial ((F.flip.obj Y₂).obj X₁) := IsInitial.isInitialObj (F.flip.obj Y₂) X₁ h
⊢ IsPushout ((F.map f₁).app X₂) ((F.obj X₁).map f₂) (𝟙 ((F.obj Y₁).obj X₂))
    ((IsInitial.isInitialObj (F.flip.obj Y₂) X₁ h).to ((F.obj Y₁).obj X₂))
Module: Mathlib.AlgebraicTopology.SimplicialSet.Homotopy

Goal state before:
pp: X Y : SSet
f g : X ⟶ Y
H : Homotopy f g
n : ℕ
x : X _⦋n⦌
k : Fin (n + 1)
⊢ Fin.castSucc 0 < 1

Tactic:
tauto

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.Homotopy

Goal state before:
pp: case snd.h
X Y : SSet
f g : X ⟶ Y
H : Homotopy f g
n : ℕ
i : Fin (n + 2)
j : Fin (n + 1)
hij : i ≤ j.castSucc
x : X _⦋n + 1⦌
k : Fin (n + 1 + 1)
⊢ i.castSucc.castSucc < j.castSucc.succ.succ

Tactic:
rw [Fin.castSucc_lt_succ_iff, ← Fin.castSucc_succ]

Goal state after:
case snd.h
X Y : SSet
f g : X ⟶ Y
H : Homotopy f g
n : ℕ
i : Fin (n + 2)
j : Fin (n + 1)
hij : i ≤ j.castSucc
x : X _⦋n + 1⦌
k : Fin (n + 1 + 1)
⊢ i.castSucc ≤ j.succ.castSucc
Module: Mathlib.AlgebraicTopology.SimplicialSet.NonDegenerateSimplicesColimit

Goal state before:
pp: X : SSet
⊢ ⨆ i, i.subcomplex = ⊤

Tactic:
rw [Subcomplex.eq_top_iff_contains_nonDegenerate]

Goal state after:
X : SSet
⊢ ∀ (n : ℕ), X.nonDegenerate n ⊆ (⨆ i, i.subcomplex).obj (op ⦋n⦌)
Module: Mathlib.AlgebraicTopology.SimplicialSet.KanComplex.MulStruct

Goal state before:
pp: X : SSet
n : ℕ
x : X _⦋0⦌
f : X.PtSimplex n x
i : Fin (n + 1)
⊢ stdSimplex.δ i.succ ≫ stdSimplex.σ i ≫ f.map = f.map

Tactic:
rw [CosimplicialObject.δ_comp_σ_succ_assoc]

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.KanComplex.MulStruct

Goal state before:
pp: X : SSet
n : ℕ
x : X _⦋0⦌
f g fg : X.PtSimplex n x
i : Fin n
h : g.op.MulStruct f.op fg.op i
j : Fin n
hij : i.rev = j
k : Fin (n + 2)
hk : j.succ.succ < k
⊢ stdSimplex.δ k ≫ yonedaEquiv.symm (opObjEquiv (yonedaEquiv h.map)) = const x

Tactic:
rw [stdSimplex.δ_comp_yonedaEquiv_symm, δ_opObjEquiv,
      ← stdSimplex.yonedaEquiv_δ_comp, h.δ_map_of_lt _ (by grind)]

Goal state after:
X : SSet
n : ℕ
x : X _⦋0⦌
f g fg : X.PtSimplex n x
i : Fin n
h : g.op.MulStruct f.op fg.op i
j : Fin n
hij : i.rev = j
k : Fin (n + 2)
hk : j.succ.succ < k
⊢ yonedaEquiv.symm (opObjEquiv (yonedaEquiv (const (opObjEquiv.symm x)))) = const x
Module: Mathlib.Topology.Algebra.Module.Cardinality

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹ : NontriviallyNormedField 𝕜
inst✝ : CompleteSpace 𝕜
f : (ℕ → Bool) → 𝕜
f_inj : Injective f
⊢ 𝔠 ≤ #𝕜

Tactic:
simpa using lift_mk_le_lift_mk_of_injective f_inj

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁵ : Field R
inst✝⁴ : Semifield S
inst✝³ : LinearOrder S
v w : AbsoluteValue R S
inst✝² : IsStrictOrderedRing S
inst✝¹ : Archimedean S
inst✝ : ExistsAddOfLE S
hv✝ : v.IsNontrivial
h : ∀ (x : R), v x < 1 → w x < 1
a : R
ha₀ : a ≠ 0
hw : w a < 1
x₀ : R
hx₀ : x₀ ≠ 0 ∧ v x₀ < 1
n : ℕ
hv : 1 ≤ v a
⊢ w x₀ < 1 * w a ^ n

Tactic:
← mul_inv_lt_iff₀ (pow_pos (by simp_all) _),

Goal state after:
R : Type u_1
S : Type u_2
inst✝⁵ : Field R
inst✝⁴ : Semifield S
inst✝³ : LinearOrder S
v w : AbsoluteValue R S
inst✝² : IsStrictOrderedRing S
inst✝¹ : Archimedean S
inst✝ : ExistsAddOfLE S
hv✝ : v.IsNontrivial
h : ∀ (x : R), v x < 1 → w x < 1
a : R
ha₀ : a ≠ 0
hw : w a < 1
x₀ : R
hx₀ : x₀ ≠ 0 ∧ v x₀ < 1
n : ℕ
hv : 1 ≤ v a
⊢ w x₀ * (w a ^ n)⁻¹ < 1
Module: Mathlib.Topology.Algebra.Module.Cardinality

Goal state before:
pp: E : Type u
𝕜 : Type u_1
inst✝⁷ : NontriviallyNormedField 𝕜
inst✝⁶ : CompleteSpace 𝕜
inst✝⁵ : AddCommGroup E
inst✝⁴ : Module 𝕜 E
inst✝³ : Nontrivial E
inst✝² : TopologicalSpace E
inst✝¹ : ContinuousAdd E
inst✝ : ContinuousSMul 𝕜 E
s : Set E
hs : s.Countable
⊢ Dense sᶜ

Tactic:
rw [← interior_eq_empty_iff_dense_compl]
  by_contra H
  apply lt_irrefl (ℵ₀ : Cardinal.{u})
  calc
    (ℵ₀ : Cardinal.{u}) < 𝔠 := aleph0_lt_continuum
    _ ≤ #(interior s) :=
      continuum_le_cardinal_of_isOpen 𝕜 isOpen_interior (notMem_singleton_empty.1 H)
    _ ≤ #s := mk_le_mk_of_subset interior_subset
    _ ≤ ℵ₀ := le_aleph0 hs

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁷ : Field R
inst✝⁶ : Field S
inst✝⁵ : LinearOrder S
inst✝⁴ : TopologicalSpace S
inst✝³ : IsStrictOrderedRing S
inst✝² : Archimedean S
inst✝¹ : OrderTopology S
ι : Type u_3
inst✝ : Finite ι
v : ι → AbsoluteValue R S
w : AbsoluteValue R S
a b : R
i : ι
ha : 1 < (v i) a
haj : ∀ (j : ι), j ≠ i → (v j) a < 1
haw : w a = 1
hb : 1 < (v i) b
hbw : w b < 1
c : ℕ → R := fun n ↦ a ^ n * b
⊢ 0 < (v i) b

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁷ : Field R
inst✝⁶ : Field S
inst✝⁵ : LinearOrder S
inst✝⁴ : TopologicalSpace S
inst✝³ : IsStrictOrderedRing S
inst✝² : Archimedean S
inst✝¹ : OrderTopology S
ι : Type u_3
inst✝ : Finite ι
v : ι → AbsoluteValue R S
w : AbsoluteValue R S
a b : R
i : ι
ha : 1 < (v i) a
haj : ∀ (j : ι), j ≠ i → (v j) a < 1
haw : w a = 1
hb : 1 < (v i) b
hbw : w b < 1
c : ℕ → R := fun n ↦ a ^ n * b
hcᵢ : Tendsto (fun n ↦ (v i) (c n)) atTop atTop
hcⱼ : ∀ (j : ι), j ≠ i → ∀ s ∈ {s | ∃ a, s = Set.Ioi a ∨ s = Set.Iio a}, 0 ∈ s → ∃ a, ∀ (b : ℕ), a ≤ b → (v j) (c b) ∈ s
r₁ : ℕ
hr₁ : ∀ (a : ℕ), r₁ ≤ a → 2 ≤ (v i) (c a)
rₙ : (j : ι) → j ≠ i → ℕ
hrₙ : ∀ (j : ι) (hj : j ≠ i) (b : ℕ), rₙ j hj ≤ b → (v j) (c b) ∈ Set.Iio 1
this : Fintype ι
r : ℕ := Finset.univ.sup fun j ↦ if h : j = i then r₁ else rₙ j h
⊢ 1 < 2

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.Calculus.InverseFunctionTheorem.ApproximatesLinearOn

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
F : Type u_3
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace 𝕜 F
f : E → F
inst✝ : CompleteSpace E
s : Set E
c : ℝ≥0
f' : E →L[𝕜] F
hf : ApproximatesLinearOn f f' s c
f'symm : f'.NonlinearRightInverse
ε : ℝ
b : E
ε0 : 0 ≤ ε
hε : closedBall b ε ⊆ s
y : F
hy : y ∈ closedBall (f b) (((↑f'symm.nnnorm)⁻¹ - ↑c) * ε)
hc : (↑f'symm.nnnorm)⁻¹ ≤ ↑c
⊢ (↑f'symm.nnnorm)⁻¹ - ↑c ≤ 0

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.Calculus.InverseFunctionTheorem.ApproximatesLinearOn

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
F : Type u_3
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace 𝕜 F
f : E → F
inst✝ : CompleteSpace E
s : Set E
c : ℝ≥0
f' : E →L[𝕜] F
hf : ApproximatesLinearOn f f' s c
f'symm : f'.NonlinearRightInverse
ε : ℝ
b : E
ε0 : 0 ≤ ε
hε : closedBall b ε ⊆ s
y : F
hy : y ∈ closedBall (f b) (((↑f'symm.nnnorm)⁻¹ - ↑c) * ε)
hc : ↑c < (↑f'symm.nnnorm)⁻¹
If' : 0 < ↑f'symm.nnnorm
Icf' : ↑c * ↑f'symm.nnnorm < 1
⊢ 0 < 1 - ↑c * ↑f'symm.nnnorm

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.Calculus.InverseFunctionTheorem.ApproximatesLinearOn

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
F : Type u_3
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace 𝕜 F
f : E → F
inst✝ : CompleteSpace E
s : Set E
c : ℝ≥0
f' : E →L[𝕜] F
hf : ApproximatesLinearOn f f' s c
f'symm : f'.NonlinearRightInverse
ε : ℝ
b : E
ε0 : 0 ≤ ε
hε : closedBall b ε ⊆ s
y : F
hy : y ∈ closedBall (f b) (((↑f'symm.nnnorm)⁻¹ - ↑c) * ε)
hc : ↑c < (↑f'symm.nnnorm)⁻¹
If' : 0 < ↑f'symm.nnnorm
Icf' : ↑c * ↑f'symm.nnnorm < 1
Jcf' : 1 - ↑c * ↑f'symm.nnnorm ≠ 0
g : E → E := fun x ↦ x + f'symm.toFun (y - f x)
hg : g = fun x ↦ x + f'symm.toFun (y - f x)
u : ℕ → E := fun n ↦ g^[n] b
hu : u = fun n ↦ g^[n] b
usucc : ∀ (n : ℕ), u (n + 1) = g (u n)
A : ∀ (z : E), dist (g z) z ≤ ↑f'symm.nnnorm * dist (f z) y
z : E
hz : z ∈ closedBall b ε
hgz : g z ∈ closedBall b ε
v : E := f'symm.toFun (y - f z)
⊢ ‖f (z + v) - y‖ = ‖f (z + v) - f z - f' v + f' v - (y - f z)‖

Tactic:
by congr 1; abel

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : log (v b ^ q.den) < log (v a ^ q.num)
hq₂ : ↑q.num / ↑q.den < log (w b) / log (w a)
⊢ 0 < v b

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : log (v b ^ q.den) < log (v a ^ q.num)
hq₂ : ↑q.num / ↑q.den < log (w b) / log (w a)
⊢ 0 < v a

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : v b ^ q.den < v a ^ q.num
hq₂ : ↑q.num / ↑q.den < log (w b) / log (w a)
⊢ 0 < v a

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : v (b ^ q.den / a ^ q.num) < 1
hq₂ : log (w a ^ q.num) < log (w b ^ q.den)
⊢ 0 < w a

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : v (b ^ q.den / a ^ q.num) < 1
hq₂ : log (w a ^ q.num) < log (w b ^ q.den)
⊢ 0 < w b

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.AbsoluteValue.Equivalence

Goal state before:
pp: F : Type u_1
inst✝ : Field F
v w : AbsoluteValue F ℝ
h : v.IsEquiv w
a : F
ha₀ : a ≠ 0
ha₁ : v a ≠ 1
b : F
hb₀ : b ≠ 0
hb₁ : v b ≠ 1
h_ne : log (v b) / log (w b) ≠ log (v a) / log (w a)
ha : 1 < v a
hb : 1 < v b
h_lt : log (v b) / log (v a) < log (w b) / log (w a)
hwa : 1 < w a
hwb : 1 < w b
q : ℚ
hq₁ : v (b ^ q.den / a ^ q.num) < 1
hq₂ : w a ^ q.num < w b ^ q.den
⊢ 0 < w a

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.Calculus.InverseFunctionTheorem.ApproximatesLinearOn

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
F : Type u_3
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace 𝕜 F
f : E → F
inst✝ : CompleteSpace E
s : Set E
c : ℝ≥0
f' : E →L[𝕜] F
hf : ApproximatesLinearOn f f' s c
f'symm : f'.NonlinearRightInverse
ε : ℝ
b : E
ε0 : 0 ≤ ε
hε : closedBall b ε ⊆ s
y : F
hy : y ∈ closedBall (f b) (((↑f'symm.nnnorm)⁻¹ - ↑c) * ε)
hc : ↑c < (↑f'symm.nnnorm)⁻¹
If' : 0 < ↑f'symm.nnnorm
Icf' : ↑c * ↑f'symm.nnnorm < 1
Jcf' : 1 - ↑c * ↑f'symm.nnnorm ≠ 0
g : E → E := fun x ↦ x + f'symm.toFun (y - f x)
hg : g = fun x ↦ x + f'symm.toFun (y - f x)
u : ℕ → E := fun n ↦ g^[n] b
hu : u = fun n ↦ g^[n] b
usucc : ∀ (n : ℕ), u (n + 1) = g (u n)
A : ∀ (z : E), dist (g z) z ≤ ↑f'symm.nnnorm * dist (f z) y
B : ∀ z ∈ closedBall b ε, g z ∈ closedBall b ε → dist (f (g z)) y ≤ ↑c * ↑f'symm.nnnorm * dist (f z) y
n : ℕ
w : E
hw : dist w b ≤ ↑f'symm.nnnorm * (1 - (↑c * ↑f'symm.nnnorm) ^ n) / (1 - ↑c * ↑f'symm.nnnorm) * dist (f b) y
⊢ 0 < 1 - ↑c * ↑f'symm.nnnorm

Tactic:
linarith

Goal state after:
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case neg.refine_2
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
z₀ : 𝕜
hf : AnalyticAt 𝕜 f z₀
n : ℕ
h✝ : ¬∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = 0
m : ℕ := ⋯.choose
g : 𝕜 → E
hg : AnalyticAt 𝕜 g z₀
hm : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ ⋯.choose • g z
x✝ : ∃ g, AnalyticAt 𝕜 g z₀ ∧ ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • g z
h : 𝕜 → E
hh : AnalyticAt 𝕜 h z₀
hfh : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • h z
hg_ne : ⋯.choose < n
this : ContinuousAt (fun z ↦ (z - z₀) ^ (n - m) • h z) z₀
⊢ g z₀ = 0

Tactic:
rw [tendsto_nhds_unique_of_eventuallyEq (l := 𝓝[≠] z₀)
        hg.continuousAt.continuousWithinAt this.continuousWithinAt ?_]

Goal state after:
case neg.refine_2
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
z₀ : 𝕜
hf : AnalyticAt 𝕜 f z₀
n : ℕ
h✝ : ¬∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = 0
m : ℕ := ⋯.choose
g : 𝕜 → E
hg : AnalyticAt 𝕜 g z₀
hm : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ ⋯.choose • g z
x✝ : ∃ g, AnalyticAt 𝕜 g z₀ ∧ ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • g z
h : 𝕜 → E
hh : AnalyticAt 𝕜 h z₀
hfh : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • h z
hg_ne : ⋯.choose < n
this : ContinuousAt (fun z ↦ (z - z₀) ^ (n - m) • h z) z₀
⊢ (fun z ↦ (z - z₀) ^ (n - m) • h z) z₀ = 0

𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
z₀ : 𝕜
hf : AnalyticAt 𝕜 f z₀
n : ℕ
h✝ : ¬∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = 0
m : ℕ := ⋯.choose
g : 𝕜 → E
hg : AnalyticAt 𝕜 g z₀
hm : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ ⋯.choose • g z
x✝ : ∃ g, AnalyticAt 𝕜 g z₀ ∧ ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • g z
h : 𝕜 → E
hh : AnalyticAt 𝕜 h z₀
hfh : ∀ᶠ (z : 𝕜) in 𝓝 z₀, f z = (z - z₀) ^ n • h z
hg_ne : ⋯.choose < n
this : ContinuousAt (fun z ↦ (z - z₀) ^ (n - m) • h z) z₀
⊢ g =ᶠ[𝓝[≠] z₀] fun z ↦ (z - z₀) ^ (n - m) • h z
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case neg
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f g : 𝕜 → E
z₀ : 𝕜
hfg : f =ᶠ[𝓝 z₀] g
hf : ¬AnalyticAt 𝕜 f z₀
⊢ analyticOrderAt f z₀ = analyticOrderAt g z₀

Tactic:
analyticOrderAt_of_not_analyticAt hf,

Goal state after:
case neg
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f g : 𝕜 → E
z₀ : 𝕜
hfg : f =ᶠ[𝓝 z₀] g
hf : ¬AnalyticAt 𝕜 f z₀
⊢ 0 = analyticOrderAt g z₀
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case neg
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
z₀ : 𝕜
hf : ¬AnalyticAt 𝕜 f z₀
⊢ analyticOrderAt (-f) z₀ = analyticOrderAt f z₀

Tactic:
analyticOrderAt_of_not_analyticAt hf,

Goal state after:
case neg
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
z₀ : 𝕜
hf : ¬AnalyticAt 𝕜 f z₀
⊢ analyticOrderAt (-f) z₀ = 0
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case neg.refine_1
𝕜 : Type u_1
E : Type u_2
inst✝² : NontriviallyNormedField 𝕜
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
g : 𝕜 → E
z₀ : 𝕜
f : 𝕜 → 𝕜
hf : AnalyticAt 𝕜 f z₀
hg : AnalyticAt 𝕜 g z₀
hf' : ¬analyticOrderAt f z₀ = ⊤
hg' : ¬analyticOrderAt g z₀ = ⊤
f' : 𝕜 → 𝕜
h₁f' : AnalyticAt 𝕜 f' z₀
h₂f' : f' z₀ ≠ 0
h₃f' : f =ᶠ[𝓝 z₀] fun z ↦ (z - z₀) ^ analyticOrderNatAt f z₀ • f' z
g' : 𝕜 → E
h₁g' : AnalyticAt 𝕜 g' z₀
h₂g' : g' z₀ ≠ 0
h₃g' : g =ᶠ[𝓝 z₀] fun z ↦ (z - z₀) ^ analyticOrderNatAt g z₀ • g' z
⊢ ¬f' z₀ = 0 ∧ ¬g' z₀ = 0

Tactic:
tauto

Goal state after:
Module: Mathlib.Analysis.Calculus.InverseFunctionTheorem.ApproximatesLinearOn

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
F : Type u_3
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace 𝕜 F
f : E → F
f' : E ≃L[𝕜] F
s : Set E
c : ℝ≥0
hf : ApproximatesLinearOn f (↑f') s c
hc : Subsingleton E ∨ c < ‖↑f'.symm‖₊⁻¹
⊢ ContinuousOn (↑(hf.toPartialEquiv hc).symm) (f '' s)

Tactic:
apply continuousOn_iff_continuous_domRestrict.2
  refine ((hf.antilipschitz hc).to_rightInvOn' ?_ (hf.toPartialEquiv hc).right_inv').continuous
  exact fun x hx => (hf.toPartialEquiv hc).map_target hx

Goal state after:
Module: Mathlib.Analysis.SpecialFunctions.Complex.LogDeriv

Goal state before:
pp: f : ℝ → ℂ
s : Set ℝ
x : ℝ
f' : ℂ
h₁ : HasDerivWithinAt f f' s x
h₂ : f x ∈ slitPlane
⊢ HasDerivWithinAt (fun t ↦ log (f t)) (f' / f x) s x

Tactic:
simpa only [div_eq_inv_mul] using!
    (hasStrictFDerivAt_log_real h₂).hasFDerivAt.comp_hasDerivWithinAt x h₁

Goal state after:
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case convert_2
𝕜 : Type u_1
E : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : CharZero 𝕜
inst✝ : CompleteSpace E
f : 𝕜 → E
hf : AnalyticAt 𝕜 f 0
n : ℕ
this : AnalyticAt 𝕜 (fun z ↦ ∑ i ∈ Finset.range n, (z ^ i / ↑i.factorial) • iteratedDeriv i f 0) 0
i : ℕ
hi : i < n
⊢ iteratedDeriv i (fun i ↦ f i - ∑ i_1 ∈ Finset.range n, (i ^ i_1 / ↑i_1.factorial) • iteratedDeriv i_1 f 0) 0 = 0

Tactic:
rw [iteratedDeriv_fun_sub (AnalyticAt.contDiffAt <| by fun_prop) this.contDiffAt]

Goal state after:
case convert_2
𝕜 : Type u_1
E : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : CharZero 𝕜
inst✝ : CompleteSpace E
f : 𝕜 → E
hf : AnalyticAt 𝕜 f 0
n : ℕ
this : AnalyticAt 𝕜 (fun z ↦ ∑ i ∈ Finset.range n, (z ^ i / ↑i.factorial) • iteratedDeriv i f 0) 0
i : ℕ
hi : i < n
⊢ iteratedDeriv i f 0 - iteratedDeriv i (fun z ↦ ∑ i ∈ Finset.range n, (z ^ i / ↑i.factorial) • iteratedDeriv i f 0) 0 =
    0
Module: Mathlib.Analysis.SpecialFunctions.OrdinaryHypergeometric

Goal state before:
pp: 𝕂 : Type u_1
𝔸 : Type u_2
inst✝⁴ : Field 𝕂
inst✝³ : Ring 𝔸
inst✝² : Algebra 𝕂 𝔸
inst✝¹ : TopologicalSpace 𝔸
inst✝ : IsTopologicalRing 𝔸
a b c : 𝕂
⊢ (ofScalars 𝔸 fun n ↦
      (↑n !)⁻¹ * Polynomial.eval a (ascPochhammer 𝕂 n) * Polynomial.eval b (ascPochhammer 𝕂 n) *
        (Polynomial.eval c (ascPochhammer 𝕂 n))⁻¹) =
    ofScalars 𝔸 fun n ↦
      (↑n !)⁻¹ * Polynomial.eval b (ascPochhammer 𝕂 n) * Polynomial.eval a (ascPochhammer 𝕂 n) *
        (Polynomial.eval c (ascPochhammer 𝕂 n))⁻¹

Tactic:
simp [mul_assoc, mul_left_comm]

Goal state after:
Module: Mathlib.AlgebraicTopology.SimplicialSet.NerveAdjunction

Goal state before:
pp: X Y : SSet
m : ℕ
⊢ prodComparison hoFunctor X Δ[m] =
    hoFunctor.map (prod.braiding X Δ[m]).hom ≫
      prodComparison hoFunctor Δ[m] X ≫ (prod.braiding (hoFunctor.obj Δ[m]) (hoFunctor.obj X)).hom

Tactic:
ext <;> simp [← Functor.map_comp]

Goal state after:
Module: Mathlib.Analysis.SpecialFunctions.OrdinaryHypergeometric

Goal state before:
pp: 𝕂 : Type u_1
𝔸 : Type u_2
inst✝² : RCLike 𝕂
inst✝¹ : NormedDivisionRing 𝔸
inst✝ : NormedAlgebra 𝕂 𝔸
a b c : 𝕂
n : ℕ
h : Polynomial.eval a (ascPochhammer 𝕂 n) = 0
kn : ℕ
hkn : kn < n
hn : ↑kn = -a
⊢ ↑kn = -a ∨ ↑kn = -b ∨ ↑kn = -c

Tactic:
tauto

Goal state after:
Module: Mathlib.Analysis.SpecialFunctions.OrdinaryHypergeometric

Goal state before:
pp: 𝕂 : Type u_1
𝔸 : Type u_2
inst✝² : RCLike 𝕂
inst✝¹ : NormedDivisionRing 𝔸
inst✝ : NormedAlgebra 𝕂 𝔸
a b c : 𝕂
n : ℕ
h : Polynomial.eval b (ascPochhammer 𝕂 n) = 0
kn : ℕ
hkn : kn < n
hn : ↑kn = -b
⊢ ↑kn = -a ∨ ↑kn = -b ∨ ↑kn = -c

Tactic:
tauto

Goal state after:
Module: Mathlib.Analysis.SpecialFunctions.OrdinaryHypergeometric

Goal state before:
pp: 𝕂 : Type u_1
𝔸 : Type u_2
inst✝² : RCLike 𝕂
inst✝¹ : NormedDivisionRing 𝔸
inst✝ : NormedAlgebra 𝕂 𝔸
a b c : 𝕂
n : ℕ
h : Polynomial.eval c (ascPochhammer 𝕂 n) = 0
kn : ℕ
hkn : kn < n
hn : ↑kn = -c
⊢ ↑kn = -a ∨ ↑kn = -b ∨ ↑kn = -c

Tactic:
tauto

Goal state after:
Module: Mathlib.Analysis.Analytic.Order

Goal state before:
pp: case neg
𝕜 : Type u_1
E : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
f : 𝕜 → E
g : 𝕜 → 𝕜
z₀ : 𝕜
hg : AnalyticAt 𝕜 g z₀
hg' : deriv g z₀ ≠ 0
inst✝¹ : CompleteSpace 𝕜
inst✝ : CharZero 𝕜
hf : ¬AnalyticAt 𝕜 f (g z₀)
⊢ analyticOrderAt (f ∘ g) z₀ = analyticOrderAt f (g z₀)

Tactic:
analyticOrderAt_of_not_analyticAt hf,

Goal state after:
case neg
𝕜 : Type u_1
E : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
f : 𝕜 → E
g : 𝕜 → 𝕜
z₀ : 𝕜
hg : AnalyticAt 𝕜 g z₀
hg' : deriv g z₀ ≠ 0
inst✝¹ : CompleteSpace 𝕜
inst✝ : CharZero 𝕜
hf : ¬AnalyticAt 𝕜 f (g z₀)
⊢ analyticOrderAt (f ∘ g) z₀ = 0