mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.Topology.OpenPartialHomeomorph.Constructions

Goal state before:
pp: X : Type u_1
X' : Type u_2
Y : Type u_3
Y' : Type u_4
Z : Type u_5
Z' : Type u_6
inst✝⁷ : TopologicalSpace X
inst✝⁶ : TopologicalSpace X'
inst✝⁵ : TopologicalSpace Y
inst✝⁴ : TopologicalSpace Y'
inst✝³ : TopologicalSpace Z
inst✝² : TopologicalSpace Z'
e✝ e e' : OpenPartialHomeomorph X Y
inst✝¹ : (x : X) → Decidable (x ∈ e.source)
inst✝ : (y : Y) → Decidable (y ∈ e.target)
Hs : Disjoint e.source e'.source
Ht : Disjoint e.target e'.target
⊢ e.source ∩ frontier e.source = e'.source ∩ frontier e.source

Tactic:
by rw [e.open_source.inter_frontier_eq, (Hs.symm.frontier_right e'.open_source).inter_eq]

Goal state after:
Module: Mathlib.Topology.FiberBundle.Trivialization

Goal state before:
pp: B : Type u_1
F : Type u_2
E : B → Type u_3
Z : Type u_4
inst✝² : TopologicalSpace B
inst✝¹ : TopologicalSpace F
proj✝ : Z → B
e✝ : Pretrivialization F proj✝
x : Z
e' : Pretrivialization F TotalSpace.proj
b : B
y : E b
s : Set B
hs : IsOpen[inst✝²] s
proj : Z → ↑s
e : Pretrivialization F proj
inst✝ : Nonempty (B → F → Z)
⊢ e.source = Subtype.val ∘ proj ⁻¹' Subtype.val '' e.baseSet

Tactic:
by ext; simp [e.source_eq]

Goal state after:
Module: Mathlib.Topology.SeparatedMap

Goal state before:
pp: X : Type u_1
Y : Sort u_2
inst✝ : TopologicalSpace X
f : X → Y
⊢ (∀ (x₁ x₂ : X), f x₁ = f x₂ → x₁ ≠ x₂ → ∃ s₁ ∈ 𝓝 x₁, ∃ s₂ ∈ 𝓝 x₂, Disjoint s₁ s₂) ↔
    IsOpen[instTopologicalSpaceSubtype] (Function.pullbackDiagonal f)ᶜ

Tactic:
isOpen_iff_mem_nhds,

Goal state after:
X : Type u_1
Y : Sort u_2
inst✝ : TopologicalSpace X
f : X → Y
⊢ (∀ (x₁ x₂ : X), f x₁ = f x₂ → x₁ ≠ x₂ → ∃ s₁ ∈ 𝓝 x₁, ∃ s₂ ∈ 𝓝 x₂, Disjoint s₁ s₂) ↔
    ∀ x ∈ (Function.pullbackDiagonal f)ᶜ, (Function.pullbackDiagonal f)ᶜ ∈ 𝓝 x
Module: Mathlib.Topology.SeparatedMap

Goal state before:
pp: X : Type u_1
Y : Type u_2
inst✝ : TopologicalSpace X
f : X → Y
⊢ (∀ (x : X), ∃ U ∈ 𝓝 x, Set.InjOn f U) ↔ IsOpen[instTopologicalSpaceSubtype] (Function.pullbackDiagonal f)

Tactic:
isOpen_iff_mem_nhds,

Goal state after:
X : Type u_1
Y : Type u_2
inst✝ : TopologicalSpace X
f : X → Y
⊢ (∀ (x : X), ∃ U ∈ 𝓝 x, Set.InjOn f U) ↔ ∀ x ∈ Function.pullbackDiagonal f, Function.pullbackDiagonal f ∈ 𝓝 x
Module: Mathlib.Analysis.SpecialFunctions.Complex.Circle

Goal state before:
pp: x : Circle
a : ↑unitInterval
⊢ ↑((x.path x) a) = ↑((Path.refl x) a)

Tactic:
simp [path, angleDiff]

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.Unitary.Connected

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
x : ℝ
hz : IsLeast (re '' spectrum ℂ u) x
h✝ : Nontrivial A
h_eqOn : Set.EqOn (fun z ↦ ‖z - 1‖ ^ 2) (fun z ↦ 2 * (1 - z.re)) (spectrum ℂ u)
a✝ : ℝ
⊢ ∀ ⦃b : ℝ⦄, a✝ ≤ b → (fun y ↦ 2 * (1 - y)) b ≤ (fun y ↦ 2 * (1 - y)) a✝

Tactic:
_

Goal state after:
A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
x : ℝ
hz : IsLeast (re '' spectrum ℂ u) x
h✝ : Nontrivial A
h_eqOn : Set.EqOn (fun z ↦ ‖z - 1‖ ^ 2) (fun z ↦ 2 * (1 - z.re)) (spectrum ℂ u)
a✝ b✝ : ℝ
⊢ a✝ ≤ b✝ → (fun y ↦ 2 * (1 - y)) b✝ ≤ (fun y ↦ 2 * (1 - y)) a✝
Module: Mathlib.Analysis.CStarAlgebra.Unitary.Connected

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
x : ℝ
hz : IsLeast (re '' spectrum ℂ u) x
h✝ : Nontrivial A
h_eqOn : Set.EqOn (fun z ↦ ‖z - 1‖ ^ 2) (fun z ↦ 2 * (1 - z.re)) (spectrum ℂ u)
a✝ b✝ : ℝ
⊢ a✝ ≤ b✝ → (fun y ↦ 2 * (1 - y)) b✝ ≤ (fun y ↦ 2 * (1 - y)) a✝

Tactic:
_

Goal state after:
A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
x : ℝ
hz : IsLeast (re '' spectrum ℂ u) x
h✝ : Nontrivial A
h_eqOn : Set.EqOn (fun z ↦ ‖z - 1‖ ^ 2) (fun z ↦ 2 * (1 - z.re)) (spectrum ℂ u)
a✝¹ b✝ : ℝ
a✝ : a✝¹ ≤ b✝
⊢ (fun y ↦ 2 * (1 - y)) b✝ ≤ (fun y ↦ 2 * (1 - y)) a✝¹
Module: Mathlib.Analysis.CStarAlgebra.Unitary.Connected

Goal state before:
pp: case mpr
A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
a✝ : Nontrivial A
z : ℂ
hz : z ∈ spectrum ℂ u
hx : IsLeast (re '' spectrum ℂ u) z.re
key : z.re ≤ -1
hz_norm : ‖z‖ = 1
⊢ -1 ∈ spectrum ℂ u

Tactic:
← hz_norm,

Goal state after:
case mpr
A : Type u_1
inst✝ : CStarAlgebra A
u : A
hu : u ∈ unitary A
a✝ : Nontrivial A
z : ℂ
hz : z ∈ spectrum ℂ u
hx : IsLeast (re '' spectrum ℂ u) z.re
key : z.re ≤ -‖z‖
hz_norm : ‖z‖ = 1
⊢ -1 ∈ spectrum ℂ u
Module: Mathlib.Analysis.CStarAlgebra.Unitary.Connected

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
u : ↥(unitary A)
hu : ‖↑u - 1‖ < 2
⊢ expUnitary (argSelfAdjoint u) = u

Tactic:
by
  ext
  have : ContinuousOn arg (spectrum ℂ (u : A)) :=
    continuousOn_arg.mono <| (spectrum_subset_slitPlane_iff_norm_lt_two u.2).mpr hu
  rw [expUnitary_coe, argSelfAdjoint_coe, ← CFC.exp_eq_normedSpace_exp (𝕜 := ℂ),
    ← cfc_comp_smul .., ← cfc_comp' ..]
  conv_rhs => rw [← cfc_id' ℂ (u : A)]
  refine cfc_congr fun y hy ↦ ?_
  have hy₁ : ‖y‖ = 1 := spectrum.norm_eq_one_of_unitary u.2 hy
  have : I * y.arg = log y :=
    Complex.ext (by simp [log_re, spectrum.norm_eq_one_of_unitary u.2 hy]) (by simp [log_im])
  simpa [← exp_eq_exp_ℂ, this] using exp_log (by aesop)

Goal state after:
Module: Mathlib.Analysis.InnerProductSpace.Adjoint

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
F : Type u_3
inst✝⁶ : RCLike 𝕜
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedAddCommGroup F
inst✝³ : InnerProductSpace 𝕜 E
inst✝² : InnerProductSpace 𝕜 F
inst✝¹ : CompleteSpace E
inst✝ : CompleteSpace F
T : E →L[𝕜] F
x✝¹ : E
x✝ : x✝¹ ∈ (↑(adjoint T ∘SL T)).ker
⊢ ↑T x✝¹ = 0

Tactic:
← inner_self_eq_zero (𝕜 := 𝕜),

Goal state after:
𝕜 : Type u_1
E : Type u_2
F : Type u_3
inst✝⁶ : RCLike 𝕜
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedAddCommGroup F
inst✝³ : InnerProductSpace 𝕜 E
inst✝² : InnerProductSpace 𝕜 F
inst✝¹ : CompleteSpace E
inst✝ : CompleteSpace F
T : E →L[𝕜] F
x✝¹ : E
x✝ : x✝¹ ∈ (↑(adjoint T ∘SL T)).ker
⊢ ⟪↑T x✝¹, ↑T x✝¹⟫_𝕜 = 0
Module: Mathlib.LinearAlgebra.AffineSpace.Simplex.Centroid

Goal state before:
pp: case mp
k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : CharZero k
n : ℕ
s : Simplex k P n
fs₁ fs₂ : Finset (Fin (n + 1))
m₁ m₂ : ℕ
h₁ : #fs₁ = m₁ + 1
h₂ : #fs₂ = m₂ + 1
h :
  (affineCombination k univ s.points) (centroidWeightsIndicator k fs₁) =
    (affineCombination k univ s.points) (centroidWeightsIndicator k fs₂)
i : Fin (n + 1)
ha :
  (↑fs₁).indicator (Function.const (Fin (n + 1)) (↑(m₁ + 1))⁻¹) i =
    (↑fs₂).indicator (Function.const (Fin (n + 1)) (↑(m₂ + 1))⁻¹) i
key : ∀ (n : ℕ), ↑n + 1 ≠ 0
⊢ i ∈ fs₁ → i ∈ fs₂

Tactic:
intro hi

Goal state after:
case mp
k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : CharZero k
n : ℕ
s : Simplex k P n
fs₁ fs₂ : Finset (Fin (n + 1))
m₁ m₂ : ℕ
h₁ : #fs₁ = m₁ + 1
h₂ : #fs₂ = m₂ + 1
h :
  (affineCombination k univ s.points) (centroidWeightsIndicator k fs₁) =
    (affineCombination k univ s.points) (centroidWeightsIndicator k fs₂)
i : Fin (n + 1)
ha :
  (↑fs₁).indicator (Function.const (Fin (n + 1)) (↑(m₁ + 1))⁻¹) i =
    (↑fs₂).indicator (Function.const (Fin (n + 1)) (↑(m₂ + 1))⁻¹) i
key : ∀ (n : ℕ), ↑n + 1 ≠ 0
hi : i ∈ fs₁
⊢ i ∈ fs₂
Module: Mathlib.LinearAlgebra.AffineSpace.Simplex.Centroid

Goal state before:
pp: case mpr
k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : CharZero k
n : ℕ
s : Simplex k P n
fs₁ fs₂ : Finset (Fin (n + 1))
m₁ m₂ : ℕ
h₁ : #fs₁ = m₁ + 1
h₂ : #fs₂ = m₂ + 1
h :
  (affineCombination k univ s.points) (centroidWeightsIndicator k fs₁) =
    (affineCombination k univ s.points) (centroidWeightsIndicator k fs₂)
i : Fin (n + 1)
ha :
  (↑fs₁).indicator (Function.const (Fin (n + 1)) (↑(m₁ + 1))⁻¹) i =
    (↑fs₂).indicator (Function.const (Fin (n + 1)) (↑(m₂ + 1))⁻¹) i
key : ∀ (n : ℕ), ↑n + 1 ≠ 0
⊢ i ∈ fs₂ → i ∈ fs₁

Tactic:
intro hi

Goal state after:
case mpr
k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : CharZero k
n : ℕ
s : Simplex k P n
fs₁ fs₂ : Finset (Fin (n + 1))
m₁ m₂ : ℕ
h₁ : #fs₁ = m₁ + 1
h₂ : #fs₂ = m₂ + 1
h :
  (affineCombination k univ s.points) (centroidWeightsIndicator k fs₁) =
    (affineCombination k univ s.points) (centroidWeightsIndicator k fs₂)
i : Fin (n + 1)
ha :
  (↑fs₁).indicator (Function.const (Fin (n + 1)) (↑(m₁ + 1))⁻¹) i =
    (↑fs₂).indicator (Function.const (Fin (n + 1)) (↑(m₂ + 1))⁻¹) i
key : ∀ (n : ℕ), ↑n + 1 ≠ 0
hi : i ∈ fs₂
⊢ i ∈ fs₁
Module: Mathlib.LinearAlgebra.AffineSpace.Simplex.Centroid

Goal state before:
pp: k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
n : ℕ
inst✝ : NeZero n
s : Simplex k P n
i : Fin (n + 1)
⊢ s.faceOppositeCentroid i = (affineCombination k {i}ᶜ s.points) fun x ↦ (↑n)⁻¹

Tactic:
unfold faceOppositeCentroid

Goal state after:
k : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
n : ℕ
inst✝ : NeZero n
s : Simplex k P n
i : Fin (n + 1)
⊢ (s.faceOpposite i).centroid = (affineCombination k {i}ᶜ s.points) fun x ↦ (↑n)⁻¹
Module: Mathlib.Analysis.InnerProductSpace.Adjoint

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
F : Type u_3
G : Type u_4
inst✝¹² : RCLike 𝕜
inst✝¹¹ : NormedAddCommGroup E
inst✝¹⁰ : NormedAddCommGroup F
inst✝⁹ : NormedAddCommGroup G
inst✝⁸ : InnerProductSpace 𝕜 E
inst✝⁷ : InnerProductSpace 𝕜 F
inst✝⁶ : InnerProductSpace 𝕜 G
H : Type u_5
inst✝⁵ : NormedAddCommGroup H
inst✝⁴ : InnerProductSpace 𝕜 H
inst✝³ : CompleteSpace H
K : Type u_6
inst✝² : NormedAddCommGroup K
inst✝¹ : InnerProductSpace 𝕜 K
inst✝ : CompleteSpace K
e : H ≃ₗᵢ[𝕜] K
x : H →L[𝕜] H
⊢ (↑e).conjContinuousAlgEquiv.toAlgEquiv (star x) = star ((↑e).conjContinuousAlgEquiv.toAlgEquiv x)

Tactic:
by
    simp [star_eq_adjoint, conjContinuousAlgEquiv_apply, ← toContinuousLinearEquiv_symm, comp_assoc]

Goal state after:
Module: Mathlib.LinearAlgebra.AffineSpace.FiniteDimensional

Goal state before:
pp: k : Type u_1
V : Type u_2
P : Type u_3
ι : Type u_4
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : Fintype ι
p : ι → P
hp : AffineIndependent k p
⊢ Fintype.card ι ≤ finrank k ↥(vectorSpan k (Set.range p)) + 1

Tactic:
cases isEmpty_or_nonempty ι

Goal state after:
case inl
k : Type u_1
V : Type u_2
P : Type u_3
ι : Type u_4
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : Fintype ι
p : ι → P
hp : AffineIndependent k p
h✝ : IsEmpty ι
⊢ Fintype.card ι ≤ finrank k ↥(vectorSpan k (Set.range p)) + 1

case inr
k : Type u_1
V : Type u_2
P : Type u_3
ι : Type u_4
inst✝⁴ : DivisionRing k
inst✝³ : AddCommGroup V
inst✝² : Module k V
inst✝¹ : AffineSpace V P
inst✝ : Fintype ι
p : ι → P
hp : AffineIndependent k p
h✝ : Nonempty ι
⊢ Fintype.card ι ≤ finrank k ↥(vectorSpan k (Set.range p)) + 1
Module: Mathlib.LinearAlgebra.AffineSpace.FiniteDimensional

Goal state before:
pp: k : Type u_1
V : Type u_2
inst✝² : DivisionRing k
inst✝¹ : AddCommGroup V
inst✝ : Module k V
s t : Finset V
hs : AffineIndependent k Subtype.val
hst : affineSpan k ↑s < affineSpan k ↑t
⊢ #s < #t

Tactic:
obtain rfl | hs' := s.eq_empty_or_nonempty
  · simpa [card_pos] using hst
  obtain rfl | ht' := t.eq_empty_or_nonempty
  · simp at hst
  have := hs'.to_subtype
  have := ht'.to_set.to_subtype
  have dir_lt := AffineSubspace.direction_lt_of_nonempty (k := k) hst <| hs'.to_set.affineSpan k
  rw [direction_affineSpan, direction_affineSpan,
    ← @Subtype.range_coe _ (s : Set V), ← @Subtype.range_coe _ (t : Set V)] at dir_lt
  have finrank_lt := add_lt_add_left (Submodule.finrank_lt_finrank_of_lt dir_lt) 1
  -- We use `erw` to elide the difference between `↥s` and `↥(s : Set V)}`
  erw [hs.finrank_vectorSpan_add_one] at finrank_lt
  simpa using finrank_lt.trans_le <| finrank_vectorSpan_range_add_one_le _ _

Goal state after:
Module: Mathlib.LinearAlgebra.AffineSpace.FiniteDimensional

Goal state before:
pp: k : Type u_1
V : Type u_2
P : Type u_3
inst✝³ : DivisionRing k
inst✝² : AddCommGroup V
inst✝¹ : Module k V
inst✝ : AffineSpace V P
s : Set P
p : P
⊢ finrank k ↥(vectorSpan k (insert p s)) ≤ finrank k ↥(vectorSpan k s) + 1

Tactic:
by
  rw [← direction_affineSpan, ← affineSpan_insert_affineSpan, direction_affineSpan,
    ← direction_affineSpan _ s]
  exact finrank_vectorSpan_insert_le ..

Goal state after:
Module: Mathlib.Analysis.Normed.Lp.lpSpace

Goal state before:
pp: case inl
α : Type u_3
E : α → Type u_4
inst✝ : (i : α) → NormedAddCommGroup (E i)
⊢ Memℓp 0 0

Tactic:
apply memℓp_zero
    simp

Goal state after:
Module: Mathlib.Analysis.Normed.Lp.lpSpace

Goal state before:
pp: 𝕜 : Type u_1
𝕜' : Type u_2
α : Type u_3
E : α → Type u_4
p q : ℝ≥0∞
inst✝³ : (i : α) → NormedAddCommGroup (E i)
I : Type u_5
B : I → Type u_6
inst✝² : (i : I) → NormedRing (B i)
inst✝¹ : ∀ (i : I), NormOneClass (B i)
inst✝ : Nonempty I
⊢ ⨆ i, ‖1 i‖ = 1

Tactic:
Pi.one_apply,

Goal state after:
𝕜 : Type u_1
𝕜' : Type u_2
α : Type u_3
E : α → Type u_4
p q : ℝ≥0∞
inst✝³ : (i : α) → NormedAddCommGroup (E i)
I : Type u_5
B : I → Type u_6
inst✝² : (i : I) → NormedRing (B i)
inst✝¹ : ∀ (i : I), NormOneClass (B i)
inst✝ : Nonempty I
⊢ ⨆ i, ‖1‖ = 1
Module: Mathlib.Analysis.Calculus.SmoothSeries

Goal state before:
pp: α : Type u_1
𝕜 : Type u_3
E : Type u_4
F : Type u_5
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : IsRCLikeNormedField 𝕜
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
inst✝² : NormedAddCommGroup F
inst✝¹ : CompleteSpace F
inst✝ : NormedSpace 𝕜 F
f : α → E → F
v : ℕ → α → ℝ
N : ℕ∞
hf : ∀ (i : α), ContDiff 𝕜 (↑N) (f i)
hv : ∀ (k : ℕ), ↑k ≤ N → Summable (v k)
h'f : ∀ (k : ℕ), ↑k ≤ N → ∀ᶠ (i : α) in cofinite, ∀ (x : E), ‖iteratedFDeriv 𝕜 k (f i) x‖ ≤ v k i
m : ℕ
hm : ↑m ≤ N
t : Set α := {i | ¬∀ k ∈ Finset.range (m + 1), ∀ (x : E), ‖iteratedFDeriv 𝕜 k (f i) x‖ ≤ v k i}
ht : t.Finite
T : Finset α := ht.toFinset
x : E
⊢ ∀ᶠ (i : α) in cofinite, ‖f i x‖ ≤ v 0 i

Tactic:
filter_upwards [h'f 0 zero_le] with i hi

Goal state after:
α : Type u_1
𝕜 : Type u_3
E : Type u_4
F : Type u_5
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : IsRCLikeNormedField 𝕜
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
inst✝² : NormedAddCommGroup F
inst✝¹ : CompleteSpace F
inst✝ : NormedSpace 𝕜 F
f : α → E → F
v : ℕ → α → ℝ
N : ℕ∞
hf : ∀ (i : α), ContDiff 𝕜 (↑N) (f i)
hv : ∀ (k : ℕ), ↑k ≤ N → Summable (v k)
h'f : ∀ (k : ℕ), ↑k ≤ N → ∀ᶠ (i : α) in cofinite, ∀ (x : E), ‖iteratedFDeriv 𝕜 k (f i) x‖ ≤ v k i
m : ℕ
hm : ↑m ≤ N
t : Set α := {i | ¬∀ k ∈ Finset.range (m + 1), ∀ (x : E), ‖iteratedFDeriv 𝕜 k (f i) x‖ ≤ v k i}
ht : t.Finite
T : Finset α := ht.toFinset
x : E
i : α
hi : ∀ (x : E), ‖iteratedFDeriv 𝕜 0 (f i) x‖ ≤ v 0 i
⊢ ‖f i x‖ ≤ v 0 i
Module: Mathlib.Analysis.Calculus.UniformLimitsDeriv

Goal state before:
pp: ι : Type u_1
l : Filter ι
E : Type u_2
inst✝⁵ : NormedAddCommGroup E
𝕜 : Type u_3
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : IsRCLikeNormedField 𝕜
inst✝² : NormedSpace 𝕜 E
G : Type u_4
inst✝¹ : NormedAddCommGroup G
inst✝ : NormedSpace 𝕜 G
f : ι → E → G
f' : ι → E → E →L[𝕜] G
x : E
r : ℝ
hf : ∀ (n : ι), ∀ y ∈ Metric.ball x r, HasFDerivAt (f n) (f' n y) y
hfg : Cauchy (map (fun n ↦ f n x) l)
this✝³ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
hf' : TendstoUniformlyOn (fun n z ↦ -f' n.1 z + f' n.2 z) 0 (l ×ˢ l) (Metric.ball x r)
this✝² : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
this✝¹ : l.NeBot
hr : 0 < r
this✝ :
  TendstoUniformlyOn (fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) 0 (l ×ˢ l) (Metric.ball x r) ∧
    TendstoUniformlyOn (fun n x_1 ↦ f n.1 x - f n.2 x) 0 (l ×ˢ l) (Metric.ball x r)
this :
  TendstoUniformlyOn ((-fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) + -fun n x_1 ↦ f n.1 x - f n.2 x) 0 (l ×ˢ l)
    (Metric.ball x r)
n : ι × ι
z : E
⊢ z ∈ Metric.ball x r →
    ((-fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) + -fun n x_1 ↦ f n.1 x - f n.2 x) n z =
      (fun z ↦ -f n.1 z + f n.2 z) z

Tactic:
_

Goal state after:
ι : Type u_1
l : Filter ι
E : Type u_2
inst✝⁵ : NormedAddCommGroup E
𝕜 : Type u_3
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : IsRCLikeNormedField 𝕜
inst✝² : NormedSpace 𝕜 E
G : Type u_4
inst✝¹ : NormedAddCommGroup G
inst✝ : NormedSpace 𝕜 G
f : ι → E → G
f' : ι → E → E →L[𝕜] G
x : E
r : ℝ
hf : ∀ (n : ι), ∀ y ∈ Metric.ball x r, HasFDerivAt (f n) (f' n y) y
hfg : Cauchy (map (fun n ↦ f n x) l)
this✝³ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
hf' : TendstoUniformlyOn (fun n z ↦ -f' n.1 z + f' n.2 z) 0 (l ×ˢ l) (Metric.ball x r)
this✝² : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
this✝¹ : l.NeBot
hr : 0 < r
this✝ :
  TendstoUniformlyOn (fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) 0 (l ×ˢ l) (Metric.ball x r) ∧
    TendstoUniformlyOn (fun n x_1 ↦ f n.1 x - f n.2 x) 0 (l ×ˢ l) (Metric.ball x r)
this :
  TendstoUniformlyOn ((-fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) + -fun n x_1 ↦ f n.1 x - f n.2 x) 0 (l ×ˢ l)
    (Metric.ball x r)
n : ι × ι
z : E
a✝ : z ∈ Metric.ball x r
⊢ ((-fun n z ↦ f n.1 z - f n.2 z - (f n.1 x - f n.2 x)) + -fun n x_1 ↦ f n.1 x - f n.2 x) n z =
    (fun z ↦ -f n.1 z + f n.2 z) z
Module: Mathlib.Analysis.Normed.Lp.lpSpace

Goal state before:
pp: α : Type u_3
E : α → Type u_4
p : ℝ≥0∞
inst✝¹ : (i : α) → NormedAddCommGroup (E i)
ι : Type u_5
l : Filter ι
inst✝ : l.NeBot
_i : Fact (1 ≤ p)
hp : p ≠ ∞
C : ℝ
F : ι → ↥(lp E p)
hCF : ∀ᶠ (k : ι) in l, ‖F k‖ ≤ C
f : (a : α) → E a
hf : Tendsto (id fun i ↦ ↑(F i)) l (𝓝 f)
s : Finset α
hp' : p ≠ 0
hp'' : 0 < p.toReal
G : ((a : α) → E a) → ℝ := fun f ↦ ∑ a ∈ s, ‖f a‖ ^ p.toReal
a : α
⊢ a ∈ s → Continuous[Pi.topologicalSpace, _] fun f ↦ ‖f a‖ ^ p.toReal

Tactic:
_

Goal state after:
α : Type u_3
E : α → Type u_4
p : ℝ≥0∞
inst✝¹ : (i : α) → NormedAddCommGroup (E i)
ι : Type u_5
l : Filter ι
inst✝ : l.NeBot
_i : Fact (1 ≤ p)
hp : p ≠ ∞
C : ℝ
F : ι → ↥(lp E p)
hCF : ∀ᶠ (k : ι) in l, ‖F k‖ ≤ C
f : (a : α) → E a
hf : Tendsto (id fun i ↦ ↑(F i)) l (𝓝 f)
s : Finset α
hp' : p ≠ 0
hp'' : 0 < p.toReal
G : ((a : α) → E a) → ℝ := fun f ↦ ∑ a ∈ s, ‖f a‖ ^ p.toReal
a : α
a✝ : a ∈ s
⊢ Continuous[Pi.topologicalSpace, _] fun f ↦ ‖f a‖ ^ p.toReal
Module: Mathlib.Analysis.Calculus.UniformLimitsDeriv

Goal state before:
pp: case inr.right
ι : Type u_1
l : Filter ι
E : Type u_2
inst✝⁵ : NormedAddCommGroup E
𝕜 : Type u_3
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : IsRCLikeNormedField 𝕜
inst✝² : NormedSpace 𝕜 E
G : Type u_4
inst✝¹ : NormedAddCommGroup G
inst✝ : NormedSpace 𝕜 G
f : ι → E → G
f' : ι → E → E →L[𝕜] G
x : E
r : ℝ
hf : ∀ (n : ι), ∀ y ∈ Metric.ball x r, HasFDerivAt (f n) (f' n y) y
hfg : Cauchy (map (fun n ↦ f n x) l)
this✝¹ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
hf' : TendstoUniformlyOn (fun n z ↦ -f' n.1 z + f' n.2 z) 0 (l ×ˢ l) (Metric.ball x r)
this✝ : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
this : l.NeBot
hr : 0 < r
ε : ℝ
hε : ε > 0
t : Set G
ht : t ∈ map (fun n ↦ f n x) l
ht' : ∀ x ∈ t, ∀ y ∈ t, dist x y < ε
n : ι
hn : f n x ∈ t
n' : ι
hn' : f n' x ∈ t
z : E
⊢ z ∈ Metric.ball x r → dist (0 z) (f (n, n').1 x - f (n, n').2 x) < ε

Tactic:
_

Goal state after:
case inr.right
ι : Type u_1
l : Filter ι
E : Type u_2
inst✝⁵ : NormedAddCommGroup E
𝕜 : Type u_3
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : IsRCLikeNormedField 𝕜
inst✝² : NormedSpace 𝕜 E
G : Type u_4
inst✝¹ : NormedAddCommGroup G
inst✝ : NormedSpace 𝕜 G
f : ι → E → G
f' : ι → E → E →L[𝕜] G
x : E
r : ℝ
hf : ∀ (n : ι), ∀ y ∈ Metric.ball x r, HasFDerivAt (f n) (f' n y) y
hfg : Cauchy (map (fun n ↦ f n x) l)
this✝¹ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
hf' : TendstoUniformlyOn (fun n z ↦ -f' n.1 z + f' n.2 z) 0 (l ×ˢ l) (Metric.ball x r)
this✝ : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
this : l.NeBot
hr : 0 < r
ε : ℝ
hε : ε > 0
t : Set G
ht : t ∈ map (fun n ↦ f n x) l
ht' : ∀ x ∈ t, ∀ y ∈ t, dist x y < ε
n : ι
hn : f n x ∈ t
n' : ι
hn' : f n' x ∈ t
z : E
a✝ : z ∈ Metric.ball x r
⊢ dist (0 z) (f (n, n').1 x - f (n, n').2 x) < ε
Module: Mathlib.Analysis.SpecialFunctions.SmoothTransition

Goal state before:
pp: p : ℝ[X]
⊢ Tendsto (fun x ↦ Polynomial.eval x⁻¹ p * expNegInvGlue x) (𝓝 0) (𝓝 0)

Tactic:
simp only [expNegInvGlue, mul_ite, mul_zero]
  refine tendsto_const_nhds.if ?_
  simp only [not_le]
  have : Tendsto (fun x ↦ p.eval x⁻¹ / exp x⁻¹) (𝓝[>] 0) (𝓝 0) :=
    p.tendsto_div_exp_atTop.comp tendsto_inv_nhdsGT_zero
  refine this.congr' <| mem_of_superset self_mem_nhdsWithin fun x hx ↦ ?_
  simp [exp_neg, div_eq_mul_inv]

Goal state after:
Module: Mathlib.Analysis.Calculus.UniformLimitsDeriv

Goal state before:
pp: ι : Type u_1
l : Filter ι
𝕜 : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
G : Type u_3
inst✝³ : NormedAddCommGroup G
inst✝² : NormedSpace 𝕜 G
f : ι → 𝕜 → G
g : 𝕜 → G
f' : ι → 𝕜 → G
g' : 𝕜 → G
inst✝¹ : IsRCLikeNormedField 𝕜
inst✝ : l.NeBot
hf' : TendstoUniformly f' g' l
hf : ∀ᶠ (n : ι) in l, ∀ (x : 𝕜), HasDerivAt (f n) (f' n x) x
hfg : ∀ (x : 𝕜), Tendsto (fun n ↦ f n x) l (𝓝 (g x))
x✝ : 𝕜
n : ι
h : ∀ (x : 𝕜), HasDerivAt (f n) (f' n x) x
x : 𝕜
⊢ x ∈ Set.univ → HasDerivAt (f n) (f' n x) x

Tactic:
_

Goal state after:
ι : Type u_1
l : Filter ι
𝕜 : Type u_2
inst✝⁴ : NontriviallyNormedField 𝕜
G : Type u_3
inst✝³ : NormedAddCommGroup G
inst✝² : NormedSpace 𝕜 G
f : ι → 𝕜 → G
g : 𝕜 → G
f' : ι → 𝕜 → G
g' : 𝕜 → G
inst✝¹ : IsRCLikeNormedField 𝕜
inst✝ : l.NeBot
hf' : TendstoUniformly f' g' l
hf : ∀ᶠ (n : ι) in l, ∀ (x : 𝕜), HasDerivAt (f n) (f' n x) x
hfg : ∀ (x : 𝕜), Tendsto (fun n ↦ f n x) l (𝓝 (g x))
x✝ : 𝕜
n : ι
h : ∀ (x : 𝕜), HasDerivAt (f n) (f' n x) x
x : 𝕜
a✝ : x ∈ Set.univ
⊢ HasDerivAt (f n) (f' n x) x
Module: Mathlib.Topology.MetricSpace.ProperSpace.Lemmas

Goal state before:
pp: case inl
α : Type u_1
inst✝¹ : PseudoMetricSpace α
inst✝ : ProperSpace α
x : α
r : ℝ
s : Set α
hs : IsClosed s
h : s ⊆ ball x r
hr : r ≤ 0
⊢ ∃ r' < r, s ⊆ ball x r'

Tactic:
ball_eq_empty.2 hr,

Goal state after:
case inl
α : Type u_1
inst✝¹ : PseudoMetricSpace α
inst✝ : ProperSpace α
x : α
r : ℝ
s : Set α
hs : IsClosed s
h : s ⊆ ∅
hr : r ≤ 0
⊢ ∃ r' < r, s ⊆ ball x r'
Module: Mathlib.MeasureTheory.Measure.Haar.NormedSpace

Goal state before:
pp: E : Type u_1
inst✝⁷ : NormedAddCommGroup E
inst✝⁶ : NormedSpace ℝ E
inst✝⁵ : MeasurableSpace E
inst✝⁴ : BorelSpace E
inst✝³ : FiniteDimensional ℝ E
μ : Measure E
inst✝² : μ.IsAddHaarMeasure
F : Type u_2
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
R : ℝ
s : Set E
hR : R ≠ 0
e : E ≃ᵐ E := (Homeomorph.smul (Units.mk0 R hR)).toMeasurableEquiv
⊢ ∫ (x : E) in s, f (R • x) ∂μ = ∫ (x : E) in ⇑e ⁻¹' ⇑e.symm ⁻¹' s, f (e x) ∂μ

Tactic:
simp [← preimage_comp]

Goal state after:
E : Type u_1
inst✝⁷ : NormedAddCommGroup E
inst✝⁶ : NormedSpace ℝ E
inst✝⁵ : MeasurableSpace E
inst✝⁴ : BorelSpace E
inst✝³ : FiniteDimensional ℝ E
μ : Measure E
inst✝² : μ.IsAddHaarMeasure
F : Type u_2
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
R : ℝ
s : Set E
hR : R ≠ 0
e : E ≃ᵐ E := (Homeomorph.smul (Units.mk0 R hR)).toMeasurableEquiv
⊢ ∫ (x : E) in s, f (R • x) ∂μ = ∫ (x : E) in s, f (e x) ∂μ
Module: Mathlib.MeasureTheory.Measure.Haar.NormedSpace

Goal state before:
pp: E : Type u_1
inst✝⁷ : NormedAddCommGroup E
inst✝⁶ : NormedSpace ℝ E
inst✝⁵ : MeasurableSpace E
inst✝⁴ : BorelSpace E
inst✝³ : FiniteDimensional ℝ E
μ : Measure E
inst✝² : μ.IsAddHaarMeasure
F : Type u_2
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
R : ℝ
s : Set E
hR : 0 < R
⊢ ∫ (x : E) in s, f (R • x) ∂μ = (R ^ finrank ℝ E)⁻¹ • ∫ (x : E) in R • s, f x ∂μ

Tactic:
setIntegral_comp_smul μ f s hR.ne',

Goal state after:
E : Type u_1
inst✝⁷ : NormedAddCommGroup E
inst✝⁶ : NormedSpace ℝ E
inst✝⁵ : MeasurableSpace E
inst✝⁴ : BorelSpace E
inst✝³ : FiniteDimensional ℝ E
μ : Measure E
inst✝² : μ.IsAddHaarMeasure
F : Type u_2
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
R : ℝ
s : Set E
hR : 0 < R
⊢ |(R ^ finrank ℝ E)⁻¹| • ∫ (x : E) in R • s, f x ∂μ = (R ^ finrank ℝ E)⁻¹ • ∫ (x : E) in R • s, f x ∂μ
Module: Mathlib.MeasureTheory.Measure.EverywherePos

Goal state before:
pp: α : Type u_1
inst✝² : TopologicalSpace α
inst✝¹ : MeasurableSpace α
μ : Measure α
s : Set α
inst✝ : μ.IsOpenPosMeasure
hs : IsOpen[inst✝²] s
⊢ μ.IsEverywherePos s

Tactic:
intro x xs n hn
  rcases mem_nhdsWithin.1 hn with ⟨u, u_open, xu, hu⟩
  apply lt_of_lt_of_le _ (measure_mono hu)
  exact (u_open.inter hs).measure_pos μ ⟨x, ⟨xu, xs⟩⟩

Goal state after: