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

Goal state before:
pp: B : Type u_1
F : Type u_2
inst✝¹ : TopologicalSpace B
inst✝ : TopologicalSpace F
⊢ topologicalSpace B F = induced (⇑(TotalSpace.toProd B F)) instTopologicalSpaceProd

Tactic:
by

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

Goal state before:
pp: B : Type u_1
F : Type u_2
inst✝² : TopologicalSpace B
inst✝¹ : TopologicalSpace F
inst✝ : Zero F
b : B
f : F
⊢ (trivialization B F).symm b f = f

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁴ : TopologicalSpace B
F₁ : Type u_2
inst✝³ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝² : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝¹ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝ : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
f₁ : (TotalSpace (F₁ × F₂) fun x ↦ E₁ x × E₂ x) → TotalSpace F₁ E₁ × TotalSpace F₂ E₂ :=
  fun p ↦ ({ proj := p.proj, snd := p.snd.1 }, { proj := p.proj, snd := p.snd.2 })
f₂ : TotalSpace F₁ E₁ × TotalSpace F₂ E₂ → (B × F₁) × B × F₂ := fun p ↦ (↑e₁ p.1, ↑e₂ p.2)
f₃ : (B × F₁) × B × F₂ → B × F₁ × F₂ := fun p ↦ (p.1.1, p.1.2, p.2.2)
hf₁ : Continuous[Prod.topologicalSpace F₁ E₁ F₂ E₂, instTopologicalSpaceProd] f₁
hf₂ : ContinuousOn f₂ (e₁.source ×ˢ e₂.source)
⊢ Continuous[instTopologicalSpaceProd, instTopologicalSpaceProd] f₃

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹² : NontriviallyNormedField 𝕜
E : Type u_2
inst✝¹¹ : NormedAddCommGroup E
inst✝¹⁰ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁹ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁸ : TopologicalSpace M
inst✝⁷ : ChartedSpace H M
E' : Type u_5
inst✝⁶ : NormedAddCommGroup E'
inst✝⁵ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝⁴ : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝³ : TopologicalSpace M'
inst✝² : ChartedSpace H' M'
f : M → M'
inst✝¹ : IsManifold I 1 M
inst✝ : IsManifold I' 1 M'
⊢ MDiff f ↔ Continuous[inst✝⁸, inst✝³] f ∧ ∀ (y : M'), MDiff[f ⁻¹' (extChartAt I' y).source] (↑(extChartAt I' y) ∘ f)

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
n : WithTop ℕ∞
hf : ContMDiffWithinAt I I' n f s x
hn : n ≠ 0
h : MDiffAt[s ∩ f ⁻¹' (extChartAt I' (f x)).source] f x
⊢ MDiffAt[s] f x

Tactic:
rwa [mdifferentiableWithinAt_inter'] at h
    apply hf.1.preimage_mem_nhdsWithin
    exact extChartAt_source_mem_nhds (f x)

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
n : WithTop ℕ∞
hf : ContMDiffWithinAt I I' n f s x
hn : n ≠ 0
h : MDiffAt[s ∩ f ⁻¹' (extChartAt I' (f x)).source] f x
⊢ MDiffAt[s] f x

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
n : WithTop ℕ∞
hf : ContMDiffWithinAt I I' n f s x
hn : n ≠ 0
⊢ ↑(extChartAt I x).symm ⁻¹' (s ∩ f ⁻¹' (extChartAt I' (f x)).source) ∩ range ↑I ⊆
    ↑I.symm ⁻¹' ↑(chartAt H x).symm ⁻¹' s ∩ range ↑I

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
n : WithTop ℕ∞
hf : ContMDiffWithinAt I I' n f s x
hn : n ≠ 0
⊢ MDiffAt[s] f x

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁵ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝¹⁴ : NormedAddCommGroup E
inst✝¹³ : NormedSpace 𝕜 E
H : Type u_3
inst✝¹² : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝¹¹ : TopologicalSpace M
inst✝¹⁰ : ChartedSpace H M
E' : Type u_5
inst✝⁹ : NormedAddCommGroup E'
inst✝⁸ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝⁷ : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝⁶ : TopologicalSpace M'
inst✝⁵ : ChartedSpace H' M'
E'' : Type u_8
inst✝⁴ : NormedAddCommGroup E''
inst✝³ : NormedSpace 𝕜 E''
H'' : Type u_9
inst✝² : TopologicalSpace H''
I'' : ModelWithCorners 𝕜 E'' H''
M'' : Type u_10
inst✝¹ : TopologicalSpace M''
inst✝ : ChartedSpace H'' M''
f : M → M'
x : M
s : Set M
g : M' → M''
h : ContinuousWithinAt f s x
⊢ writtenInExtChartAt I I'' x (g ∘ f) =ᶠ[𝓝[↑(extChartAt I x).symm ⁻¹' s ∩ range ↑I] ↑(extChartAt I x) x]
    writtenInExtChartAt I' I'' (f x) g ∘ writtenInExtChartAt I I' x f

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.VectorBundle.FiberwiseLinear

Goal state before:
pp: 𝕜 : Type u_1
B : Type u_2
F : Type u_3
inst✝⁷ : TopologicalSpace B
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : NormedAddCommGroup F
inst✝⁴ : NormedSpace 𝕜 F
EB : Type u_4
inst✝³ : NormedAddCommGroup EB
inst✝² : NormedSpace 𝕜 EB
HB : Type u_5
inst✝¹ : TopologicalSpace HB
inst✝ : ChartedSpace HB B
IB : ModelWithCorners 𝕜 EB HB
n : ℕ∞ω
e : OpenPartialHomeomorph (B × F) (B × F)
U : Set B
hU : e.source = U ×ˢ univ
h :
  ∀ x ∈ U,
    ∃ φ u,
      ∃ (hu : IsOpen[inst✝⁷] u) (_ : u ⊆ U) (_ : x ∈ u) (hφ : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x)) u) (h2φ
        : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x).symm) u),
        (e.restr (u ×ˢ univ)).EqOnSource (FiberwiseLinear.openPartialHomeomorph φ hu ⋯ ⋯)
⊢ ∃ Φ U,
    ∃ (hU₀ : IsOpen[inst✝⁷] U) (hΦ : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(Φ x)) U) (h2Φ :
      ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(Φ x).symm) U),
      e.EqOnSource (FiberwiseLinear.openPartialHomeomorph Φ hU₀ ⋯ ⋯)

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
f' f₁' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
U : UniqueMDiffAt[s] x
h : HasMFDerivAt[s] f x f'
h₁ : HasMFDerivAt[s] f x f₁'
⊢ f' = f₁'

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
⊢ mfderiv[univ] f = mfderiv% f

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
h : ¬MDiffAt[s] f x
⊢ mfderiv[s] f x = 0

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.VectorBundle.FiberwiseLinear

Goal state before:
pp: 𝕜 : Type u_1
B : Type u_2
F : Type u_3
inst✝⁷ : TopologicalSpace B
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : NormedAddCommGroup F
inst✝⁴ : NormedSpace 𝕜 F
EB : Type u_4
inst✝³ : NormedAddCommGroup EB
inst✝² : NormedSpace 𝕜 EB
HB : Type u_5
inst✝¹ : TopologicalSpace HB
inst✝ : ChartedSpace HB B
IB : ModelWithCorners 𝕜 EB HB
e : OpenPartialHomeomorph (B × F) (B × F)
n : ℕ∞ω
⊢ e ∈
      ⋃ φ,
        ⋃ U,
          ⋃ (hU : IsOpen[inst✝⁷] U),
            ⋃ (hφ : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x)) U),
              ⋃ (h2φ : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x).symm) U),
                {e | e.EqOnSource (FiberwiseLinear.openPartialHomeomorph φ hU ⋯ ⋯)} ↔
    ∃ φ U,
      ∃ (hU : IsOpen[inst✝⁷] U) (hφ : ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x)) U) (h2φ :
        ContMDiffOn IB 𝓘(𝕜, F →L[𝕜] F) n (fun x ↦ ↑(φ x).symm) U),
        e.EqOnSource (FiberwiseLinear.openPartialHomeomorph φ hU ⋯ ⋯)

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
h : ¬MDiffAt f x
⊢ mfderiv% f x = 0

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹¹ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝¹⁰ : NormedAddCommGroup E
inst✝⁹ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁸ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁷ : TopologicalSpace M
inst✝⁶ : ChartedSpace H M
E' : Type u_5
inst✝⁵ : NormedAddCommGroup E'
inst✝⁴ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝³ : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝² : TopologicalSpace M'
inst✝¹ : ChartedSpace H' M'
f : M → M'
inst✝ : Subsingleton E
⊢ MDiff f

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁴ : TopologicalSpace B
F₁ : Type u_2
inst✝³ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝² : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝¹ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝ : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
⊢ ContinuousOn (toFun' e₁ e₂) (TotalSpace.proj ⁻¹' (e₁.baseSet ∩ e₂.baseSet))

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s : Set M
hf : Injective ⇑(mfderiv[s] f x)
⊢ MDiffAt[s] f x

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁶ : TopologicalSpace B
F₁ : Type u_2
inst✝⁵ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁴ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝³ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝² : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
inst✝¹ : (x : B) → Zero (E₁ x)
inst✝ : (x : B) → Zero (E₂ x)
x : TotalSpace (F₁ × F₂) fun x ↦ E₁ x × E₂ x
h : x ∈ TotalSpace.proj ⁻¹' (e₁.baseSet ∩ e₂.baseSet)
⊢ invFun' e₁ e₂ (toFun' e₁ e₂ x) = x

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
x : M
f : M → M'
hf : Injective ⇑(mfderiv% f x)
⊢ MDiffAt f x

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁶ : TopologicalSpace B
F₁ : Type u_2
inst✝⁵ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁴ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝³ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝² : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
inst✝¹ : (x : B) → Zero (E₁ x)
inst✝ : (x : B) → Zero (E₂ x)
x : B × F₁ × F₂
h : x ∈ (e₁.baseSet ∩ e₂.baseSet) ×ˢ univ
⊢ toFun' e₁ e₂ (invFun' e₁ e₂ x) = x

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
f' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
h : HasMFDerivAt% f x f'
⊢ MDiffAt f x

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
f' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
⊢ HasMFDerivAt[univ] f x f' ↔ HasMFDerivAt% f x f'

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁶ : TopologicalSpace B
F₁ : Type u_2
inst✝⁵ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁴ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝³ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝² : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
inst✝¹ : (x : B) → Zero (E₁ x)
inst✝ : (x : B) → Zero (E₂ x)
⊢ Continuous[instTopologicalSpaceProd, instTopologicalSpaceProd] fun p ↦ ((p.1, p.2.1), p.1, p.2.2)

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁶ : TopologicalSpace B
F₁ : Type u_2
inst✝⁵ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁴ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝³ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝² : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
inst✝¹ : (x : B) → Zero (E₁ x)
inst✝ : (x : B) → Zero (E₂ x)
⊢ ContinuousOn (invFun' e₁ e₂) ((e₁.baseSet ∩ e₂.baseSet) ×ˢ univ)

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
f₀' f₁' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
h₀ : HasMFDerivAt% f x f₀'
h₁ : HasMFDerivAt% f x f₁'
⊢ f₀' = f₁'

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝⁶ : TopologicalSpace B
F₁ : Type u_2
inst✝⁵ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁴ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝³ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝² : TopologicalSpace (TotalSpace F₂ E₂)
e₁ : Trivialization F₁ TotalSpace.proj
e₂ : Trivialization F₂ TotalSpace.proj
inst✝¹ : (x : B) → Zero (E₁ x)
inst✝ : (x : B) → Zero (E₂ x)
⊢ IsOpen[Prod.topologicalSpace F₁ E₁ F₂ E₂] (TotalSpace.proj ⁻¹' (e₁.baseSet ∩ e₂.baseSet))

Tactic:
by

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

Goal state before:
pp: B : Type u_1
inst✝¹⁰ : TopologicalSpace B
F₁ : Type u_2
inst✝⁹ : TopologicalSpace F₁
E₁ : B → Type u_3
inst✝⁸ : TopologicalSpace (TotalSpace F₁ E₁)
F₂ : Type u_4
inst✝⁷ : TopologicalSpace F₂
E₂ : B → Type u_5
inst✝⁶ : TopologicalSpace (TotalSpace F₂ E₂)
inst✝⁵ : (x : B) → Zero (E₁ x)
inst✝⁴ : (x : B) → Zero (E₂ x)
inst✝³ : (x : B) → TopologicalSpace (E₁ x)
inst✝² : (x : B) → TopologicalSpace (E₂ x)
inst✝¹ : FiberBundle F₁ E₁
inst✝ : FiberBundle F₂ E₂
b : B
⊢ IsInducing (TotalSpace.mk b)

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
inst✝¹ : TopologicalSpace B'
inst✝ : TopologicalSpace (TotalSpace F E)
f : B' → B
⊢ Continuous[TotalSpace.topologicalSpace F E f, inst✝¹] TotalSpace.proj

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
inst✝¹ : TopologicalSpace B'
inst✝ : TopologicalSpace (TotalSpace F E)
f : B' → B
⊢ Continuous[TotalSpace.topologicalSpace F E f, inst✝] (Pullback.lift f)

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
inst✝¹ : TopologicalSpace B'
inst✝ : TopologicalSpace (TotalSpace F E)
f : B' → B
⊢ IsInducing (pullbackTotalSpaceEmbedding f)

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
inst✝⁵ : TopologicalSpace B'
inst✝⁴ : TopologicalSpace (TotalSpace F E)
inst✝³ : TopologicalSpace F
inst✝² : TopologicalSpace B
inst✝¹ : (x : B) → TopologicalSpace (E x)
inst✝ : FiberBundle F E
f : B' → B
x : B'
⊢ Continuous[instTopologicalSpacePullback E f x, TotalSpace.topologicalSpace F E f] (TotalSpace.mk x)

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s t : Set M
f' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
h : t ∈ 𝓝[s] x
⊢ HasMFDerivAt[s ∩ t] f x f' ↔ HasMFDerivAt[s] f x f'

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
f✝ : B' → B
inst✝⁶ : TopologicalSpace B'
inst✝⁵ : TopologicalSpace (TotalSpace F E)
inst✝⁴ : TopologicalSpace F
inst✝³ : TopologicalSpace B
inst✝² : ∀ (_b : B), Nonempty (E _b)
K : Type U
inst✝¹ : FunLike K B' B
inst✝ : ContinuousMapClass K B' B
e : Trivialization F TotalSpace.proj
f : K
x : TotalSpace F (⇑f *ᵖ E)
h : x ∈ Pullback.lift ⇑f ⁻¹' e.source
⊢ (x.proj, (↑e (Pullback.lift (⇑f) x)).2) ∈ (⇑f ⁻¹' e.baseSet) ×ˢ univ

Tactic:
by

Goal state after:
Module: Mathlib.Geometry.Manifold.MFDeriv.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace 𝕜 E
H : Type u_3
inst✝⁷ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
M : Type u_4
inst✝⁶ : TopologicalSpace M
inst✝⁵ : ChartedSpace H M
E' : Type u_5
inst✝⁴ : NormedAddCommGroup E'
inst✝³ : NormedSpace 𝕜 E'
H' : Type u_6
inst✝² : TopologicalSpace H'
I' : ModelWithCorners 𝕜 E' H'
M' : Type u_7
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
f : M → M'
x : M
s t : Set M
f' : TangentSpace I x →L[𝕜] TangentSpace I' (f x)
h : t ∈ 𝓝 x
⊢ HasMFDerivAt[s ∩ t] f x f' ↔ HasMFDerivAt[s] f x f'

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
f✝ : B' → B
inst✝⁶ : TopologicalSpace B'
inst✝⁵ : TopologicalSpace (TotalSpace F E)
inst✝⁴ : TopologicalSpace F
inst✝³ : TopologicalSpace B
inst✝² : ∀ (_b : B), Nonempty (E _b)
K : Type U
inst✝¹ : FunLike K B' B
inst✝ : ContinuousMapClass K B' B
e : Trivialization F TotalSpace.proj
f : K
y : B' × F
h : y ∈ (⇑f ⁻¹' e.baseSet) ×ˢ univ
⊢ TotalSpace.mk' F y.1 (e.symm (f y.1) y.2) ∈ Pullback.lift ⇑f ⁻¹' e.source

Tactic:
by

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

Goal state before:
pp: B : Type u
F : Type v
E : B → Type w₁
B' : Type w₂
f✝ : B' → B
inst✝⁶ : TopologicalSpace B'
inst✝⁵ : TopologicalSpace (TotalSpace F E)
inst✝⁴ : TopologicalSpace F
inst✝³ : TopologicalSpace B
inst✝² : ∀ (_b : B), Nonempty (E _b)
K : Type U
inst✝¹ : FunLike K B' B
inst✝ : ContinuousMapClass K B' B
e : Trivialization F TotalSpace.proj
f : K
x : TotalSpace F (⇑f *ᵖ E)
h : x ∈ Pullback.lift ⇑f ⁻¹' e.source
⊢ TotalSpace.mk' F (x.proj, (↑e (Pullback.lift (⇑f) x)).2).1
      (e.symm (f (x.proj, (↑e (Pullback.lift (⇑f) x)).2).1) (x.proj, (↑e (Pullback.lift (⇑f) x)).2).2) =
    x

Tactic:
by

Goal state after: