mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.MeasureTheory.Integral.IntervalIntegral.IntegrationByParts

Goal state before:
pp: case inr.hf
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ ContinuousOn f (Icc b a)

pp: case inr.hff'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, HasDerivAt f (f' x) x

pp: case inr.hf'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, 0 ≤ f' x

pp: case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a

Tactic:
· rwa [uIcc_of_ge hab.le] at hf

Goal state after:
case inr.hff'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, HasDerivAt f (f' x) x

case inr.hf'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, 0 ≤ f' x

case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a
Module: Mathlib.MeasureTheory.Integral.IntervalIntegral.IntegrationByParts

Goal state before:
pp: case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), 0 ≤ f' x
M : MonotoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a

Tactic:
· exact hab.le

Goal state after:
Module: Mathlib.MeasureTheory.Function.Jacobian

Goal state before:
pp: E : Type u_1
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : FiniteDimensional ℝ E
inst✝² : MeasurableSpace E
inst✝¹ : BorelSpace E
μ : Measure E
inst✝ : μ.IsAddHaarMeasure
A : E →L[ℝ] E
m : ℝ≥0
hm : ENNReal.ofReal |A.det| < ↑m
⊢ {x | (fun δ ↦ ∀ (s : Set E) (f : E → E), ApproximatesLinearOn f A s δ → μ (f '' s) ≤ ↑m * μ s) x} ∈ 𝓝 0

Tactic:
let d := ENNReal.ofReal |A.det|

Goal state after:
E : Type u_1
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : FiniteDimensional ℝ E
inst✝² : MeasurableSpace E
inst✝¹ : BorelSpace E
μ : Measure E
inst✝ : μ.IsAddHaarMeasure
A : E →L[ℝ] E
m : ℝ≥0
hm : ENNReal.ofReal |A.det| < ↑m
d : ℝ≥0∞ := ENNReal.ofReal |A.det|
⊢ {x | (fun δ ↦ ∀ (s : Set E) (f : E → E), ApproximatesLinearOn f A s δ → μ (f '' s) ≤ ↑m * μ s) x} ∈ 𝓝 0
Module: Mathlib.MeasureTheory.Integral.IntegralEqImproper

Goal state before:
pp: α : Type u_1
ι : Type u_2
inst✝² : MeasurableSpace α
μ : Measure α
l : Filter ι
inst✝¹ : PseudoMetricSpace α
inst✝ : OpensMeasurableSpace α
x : α
r : ι → ℝ
hr : Tendsto r l atTop
y : α
a : ι
⊢ a ∈ r ⁻¹' Ioi (dist x y) → y ∈ Metric.ball x (r a)

Tactic:
ha

Goal state after:
α : Type u_1
ι : Type u_2
inst✝² : MeasurableSpace α
μ : Measure α
l : Filter ι
inst✝¹ : PseudoMetricSpace α
inst✝ : OpensMeasurableSpace α
x : α
r : ι → ℝ
hr : Tendsto r l atTop
y : α
a : ι
ha : a ∈ r ⁻¹' Ioi (dist x y)
⊢ y ∈ Metric.ball x (r a)
Module: Mathlib.MeasureTheory.Integral.IntegralEqImproper

Goal state before:
pp: α : Type u_1
ι : Type u_2
inst✝² : MeasurableSpace α
μ : Measure α
l : Filter ι
inst✝¹ : PseudoMetricSpace α
inst✝ : OpensMeasurableSpace α
x : α
r : ι → ℝ
hr : Tendsto r l atTop
y : α
a : ι
⊢ a ∈ r ⁻¹' Ici (dist x y) → y ∈ Metric.closedBall x (r a)

Tactic:
ha

Goal state after:
α : Type u_1
ι : Type u_2
inst✝² : MeasurableSpace α
μ : Measure α
l : Filter ι
inst✝¹ : PseudoMetricSpace α
inst✝ : OpensMeasurableSpace α
x : α
r : ι → ℝ
hr : Tendsto r l atTop
y : α
a : ι
ha : a ∈ r ⁻¹' Ici (dist x y)
⊢ y ∈ Metric.closedBall x (r a)
Module: Mathlib.MeasureTheory.Function.Jacobian

Goal state before:
pp: E : Type u_1
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : FiniteDimensional ℝ E
inst✝² : MeasurableSpace E
inst✝¹ : BorelSpace E
μ : Measure E
inst✝ : μ.IsAddHaarMeasure
A : E →L[ℝ] E
m : ℝ≥0
hm : ENNReal.ofReal |A.det| < ↑m
d : ℝ≥0∞ := ENNReal.ofReal |A.det|
ε : ℝ
hε : μ (closedBall 0 ε + ⇑A '' closedBall 0 1) < ↑m * μ (closedBall 0 1)
εpos : 0 < ε
this : Iio (NNReal.mk ε ⋯) ∈ 𝓝 0
δ : ℝ≥0
s : Set E
f : E → E
hf : ApproximatesLinearOn f A s δ
hδ : ↑δ < ε
I : ∀ (x : E) (r : ℝ), x ∈ s → 0 ≤ r → μ (f '' (s ∩ closedBall x r)) ≤ ↑m * μ (closedBall x r)
a : ℝ≥0∞
⊢ a ∈ Ioi 0 → μ (f '' s) ≤ ↑m * (μ s + a)

Tactic:
ha

Goal state after:
E : Type u_1
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : FiniteDimensional ℝ E
inst✝² : MeasurableSpace E
inst✝¹ : BorelSpace E
μ : Measure E
inst✝ : μ.IsAddHaarMeasure
A : E →L[ℝ] E
m : ℝ≥0
hm : ENNReal.ofReal |A.det| < ↑m
d : ℝ≥0∞ := ENNReal.ofReal |A.det|
ε : ℝ
hε : μ (closedBall 0 ε + ⇑A '' closedBall 0 1) < ↑m * μ (closedBall 0 1)
εpos : 0 < ε
this : Iio (NNReal.mk ε ⋯) ∈ 𝓝 0
δ : ℝ≥0
s : Set E
f : E → E
hf : ApproximatesLinearOn f A s δ
hδ : ↑δ < ε
I : ∀ (x : E) (r : ℝ), x ∈ s → 0 ≤ r → μ (f '' (s ∩ closedBall x r)) ≤ ↑m * μ (closedBall x r)
a : ℝ≥0∞
ha : a ∈ Ioi 0
⊢ μ (f '' s) ≤ ↑m * (μ s + a)
Module: Mathlib.MeasureTheory.Integral.IntervalIntegral.IntegrationByParts

Goal state before:
pp: case inr.hf
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ ContinuousOn f (Icc b a)

pp: case inr.hff'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, HasDerivAt f (f' x) x

pp: case inr.hf'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, f' x ≤ 0

pp: case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a

Tactic:
· rwa [uIcc_of_ge hab.le] at hf

Goal state after:
case inr.hff'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, HasDerivAt f (f' x) x

case inr.hf'
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ ∀ x ∈ Ioo b a, f' x ≤ 0

case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a
Module: Mathlib.MeasureTheory.Integral.IntervalIntegral.IntegrationByParts

Goal state before:
pp: case inr.hab
a b : ℝ
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f f' : ℝ → ℝ
g : ℝ → E
hf : ContinuousOn f [[a, b]]
hff' : ∀ x ∈ Ioo (min a b) (max a b), HasDerivAt f (f' x) x
hf' : ∀ x ∈ Ioo (min a b) (max a b), f' x ≤ 0
M : AntitoneOn f [[a, b]]
hab : b < a
⊢ b ≤ a

Tactic:
· exact hab.le

Goal state after:
Module: Mathlib.MeasureTheory.Integral.IntegralEqImproper

Goal state before:
pp: E : Type u_1
f f' : ℝ → E
a : ℝ
inst✝² : NormedAddCommGroup E
inst✝¹ : NormedSpace ℝ E
inst✝ : CompleteSpace E
hderiv : ∀ x ∈ Iic a, HasDerivAt f (f' x) x
f'int : IntegrableOn f' (Iic a) volume
g : ℝ → E := f ∘ fun x ↦ -x
hdg : ∀ x ∈ Ioi (-a), HasDerivAt g (-f' (-x)) x
L : Tendsto g atTop (𝓝 (atTop.limUnder g))
this : Tendsto (fun x ↦ g (-x)) atBot (𝓝 (atTop.limUnder g))
⊢ Tendsto f atBot (𝓝 (atTop.limUnder g))

Tactic:
simpa [g] using this

Goal state after:
Module: Mathlib.Analysis.Calculus.LocalExtr.Polynomial

Goal state before:
pp: case inr
p : ℝ[X]
hp' : derivative p ≠ 0
hp : p ≠ 0
⊢ p.roots.toFinset.card ≤ ((derivative p).roots.toFinset \ p.roots.toFinset).card + 1

Tactic:
refine Finset.card_le_sdiff_of_interleaved fun x hx y hy hxy hxy' => ?_

Goal state after:
case inr
p : ℝ[X]
hp' : derivative p ≠ 0
hp : p ≠ 0
x : ℝ
hx : x ∈ p.roots.toFinset
y : ℝ
hy : y ∈ p.roots.toFinset
hxy : x < y
hxy' : ∀ z ∈ p.roots.toFinset, z ∉ Set.Ioo x y
⊢ ∃ z ∈ (derivative p).roots.toFinset, x < z ∧ z < y
Module: Mathlib.Analysis.Complex.LocallyUniformLimit

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
z : ℂ
M r : ℝ
f : ℂ → E
hr : 0 < r
hf : ∀ w ∈ sphere z r, ‖f w‖ ≤ M
hM : 0 ≤ M
⊢ ∀ w ∈ sphere z r, ‖((w - z) ^ 2)⁻¹ • f w‖ ≤ M / r ^ 2

Tactic:
intro w hw

Goal state after:
E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℂ E
z : ℂ
M r : ℝ
f : ℂ → E
hr : 0 < r
hf : ∀ w ∈ sphere z r, ‖f w‖ ≤ M
hM : 0 ≤ M
w : ℂ
hw : w ∈ sphere z r
⊢ ‖((w - z) ^ 2)⁻¹ • f w‖ ≤ M / r ^ 2
Module: Mathlib.Geometry.Manifold.StructureGroupoid

Goal state before:
pp: H✝ : Type u_1
inst✝¹ : TopologicalSpace H✝
H : Type u_2
inst✝ : TopologicalSpace H
N O : StructureGroupoid H
h : (fun s ↦ s.members) N = (fun s ↦ s.members) O
⊢ N = O

Tactic:
cases N; cases O; congr

Goal state after:
Module: Mathlib.Geometry.Manifold.ChartedSpace

Goal state before:
pp: H : Type u
M : Type u_2
inst✝³ : TopologicalSpace H
inst✝² : TopologicalSpace M
inst✝¹ : ChartedSpace H M
inst✝ : LocallyPathConnectedSpace H
x : M
s : Set M
hs : s ∈ 𝓝 x
e : OpenPartialHomeomorph M H := chartAt H x
t : Set M := s ∩ e.source
⊢ ∃ i, (i ∈ 𝓝 x ∧ IsPathConnected i) ∧ id i ⊆ s

Tactic:
have ht : t ∈ 𝓝 x := Filter.inter_mem hs (chart_source_mem_nhds _ _)

Goal state after:
H : Type u
M : Type u_2
inst✝³ : TopologicalSpace H
inst✝² : TopologicalSpace M
inst✝¹ : ChartedSpace H M
inst✝ : LocallyPathConnectedSpace H
x : M
s : Set M
hs : s ∈ 𝓝 x
e : OpenPartialHomeomorph M H := chartAt H x
t : Set M := s ∩ e.source
ht : t ∈ 𝓝 x
⊢ ∃ i, (i ∈ 𝓝 x ∧ IsPathConnected i) ∧ id i ⊆ s
Module: Mathlib.Geometry.Manifold.ChartedSpace

Goal state before:
pp: case pos.refine_2
H : Type u
M : Type u_2
inst✝³ : TopologicalSpace H
inst✝² : TopologicalSpace M
inst✝¹ : ChartedSpace H M
inst✝ : T1Space H
x y : M
hxy : x ≠ y
hy : y ∈ (chartAt H x).source
⊢ ¬↑(chartAt H x) x = ↑(chartAt H x) y

Tactic:
exact (chartAt H x).injOn.ne (ChartedSpace.mem_chart_source x) hy hxy

Goal state after:
Module: Mathlib.Geometry.Manifold.HasGroupoid

Goal state before:
pp: H : Type u
inst✝² : TopologicalSpace H
α : Type u_5
inst✝¹ : TopologicalSpace α
e : OpenPartialHomeomorph α H
h : e.source = univ
G : StructureGroupoid H
inst✝ : ClosedUnderRestriction G
e' e'' : OpenPartialHomeomorph α H
he' : e' ∈ atlas H α
he'' : e'' ∈ atlas H α
⊢ e'.symm ≫ₕ e'' ∈ G

Tactic:
e.singletonChartedSpace_mem_atlas_eq h e' he',

Goal state after:
H : Type u
inst✝² : TopologicalSpace H
α : Type u_5
inst✝¹ : TopologicalSpace α
e : OpenPartialHomeomorph α H
h : e.source = univ
G : StructureGroupoid H
inst✝ : ClosedUnderRestriction G
e' e'' : OpenPartialHomeomorph α H
he' : e' ∈ atlas H α
he'' : e'' ∈ atlas H α
⊢ e.symm ≫ₕ e'' ∈ G
Module: Mathlib.Geometry.Manifold.IsManifold.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝³ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝² : NormedAddCommGroup E
inst✝¹ : NormedSpace 𝕜 E
inst✝ : NormedSpace ℝ E
h : IsRCLikeNormedField 𝕜
s : Set E
hs : ∀ ⦃x : E⦄, x ∈ s → ∀ ⦃y : E⦄, y ∈ s → ∀ ⦃a b : ℝ⦄, 0 ≤ a → 0 ≤ b → a + b = 1 → a • x + b • y ∈ s
this✝ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
this : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
u : E
hu : u ∈ s
v : E
hv : v ∈ s
a b : ℝ
⊢ 0 ≤ a → 0 ≤ b → a + b = 1 → a • u + b • v ∈ s

Tactic:
ha

Goal state after:
𝕜 : Type u_1
inst✝³ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝² : NormedAddCommGroup E
inst✝¹ : NormedSpace 𝕜 E
inst✝ : NormedSpace ℝ E
h : IsRCLikeNormedField 𝕜
s : Set E
hs : ∀ ⦃x : E⦄, x ∈ s → ∀ ⦃y : E⦄, y ∈ s → ∀ ⦃a b : ℝ⦄, 0 ≤ a → 0 ≤ b → a + b = 1 → a • x + b • y ∈ s
this✝ : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
this : NormedSpace ℝ E := NormedSpace.restrictScalars ℝ 𝕜 E
u : E
hu : u ∈ s
v : E
hv : v ∈ s
a b : ℝ
ha : 0 ≤ a
⊢ 0 ≤ b → a + b = 1 → a • u + b • v ∈ s
Module: Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
x : M
hx : x ∈ f.source
h'x : ↑(f.extend I) x ∈ interior (range ↑I)
⊢ map (↑(f.extend I)) (𝓝 x) = 𝓝 (↑(f.extend I) x)

Tactic:
f.map_extend_nhds hx,

Goal state after:
𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
x : M
hx : x ∈ f.source
h'x : ↑(f.extend I) x ∈ interior (range ↑I)
⊢ 𝓝[range ↑I] ↑(f.extend I) x = 𝓝 (↑(f.extend I) x)
Module: Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁵ : NontriviallyNormedField 𝕜
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
inst✝² : TopologicalSpace H
inst✝¹ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
inst✝ : I.Boundaryless
x : M
hx : x ∈ f.source
⊢ map (↑(f.extend I)) (𝓝 x) = 𝓝 (↑(f.extend I) x)

Tactic:
f.map_extend_nhds hx,

Goal state after:
𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁵ : NontriviallyNormedField 𝕜
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace 𝕜 E
inst✝² : TopologicalSpace H
inst✝¹ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
inst✝ : I.Boundaryless
x : M
hx : x ∈ f.source
⊢ 𝓝[range ↑I] ↑(f.extend I) x = 𝓝 (↑(f.extend I) x)
Module: Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
⊢ interior (f.extend I).target ⊆ interior (range ↑I)

Tactic:
f.extend_target,

Goal state after:
𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
⊢ interior (↑I.symm ⁻¹' f.target ∩ range ↑I) ⊆ interior (range ↑I)
Module: Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
y : H
hy : y ∈ f.target
hy' : ↑I y ∈ interior (range ↑I)
⊢ ↑I y ∈ interior (f.extend I).target

Tactic:
f.extend_target,

Goal state after:
𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
f : OpenPartialHomeomorph M H
I : ModelWithCorners 𝕜 E H
y : H
hy : y ∈ f.target
hy' : ↑I y ∈ interior (range ↑I)
⊢ ↑I y ∈ interior (↑I.symm ⁻¹' f.target ∩ range ↑I)
Module: Mathlib.Geometry.Manifold.LocalInvariantProperties

Goal state before:
pp: H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
P : (H → H') → Set H → H → Prop
U : Opens M'
f : M → ↥U
s : Set M
x : M
⊢ ContinuousWithinAt (Subtype.val ∘ f) s x ∧
      P (↑(chartAt H' ((Subtype.val ∘ f) x)) ∘ (Subtype.val ∘ f) ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' s)
        (↑(chartAt H x) x) ↔
    ContinuousWithinAt f s x ∧
      P (↑(chartAt H' (f x)) ∘ f ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' s) (↑(chartAt H x) x)

Tactic:
congrm ?_ ∧ ?_

Goal state after:
case refine_1
H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
P : (H → H') → Set H → H → Prop
U : Opens M'
f : M → ↥U
s : Set M
x : M
⊢ ContinuousWithinAt (Subtype.val ∘ f) s x ↔ ContinuousWithinAt f s x

case refine_2
H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
P : (H → H') → Set H → H → Prop
U : Opens M'
f : M → ↥U
s : Set M
x : M
⊢ P (↑(chartAt H' ((Subtype.val ∘ f) x)) ∘ (Subtype.val ∘ f) ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' s)
      (↑(chartAt H x) x) ↔
    P (↑(chartAt H' (f x)) ∘ f ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' s) (↑(chartAt H x) x)
Module: Mathlib.Geometry.Manifold.IsManifold.Basic

Goal state before:
pp: case pos
𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
H : Type u_3
inst✝¹ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
inst✝ : NormedSpace ℝ E
h : IsRCLikeNormedField 𝕜
this : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
W :
  ∀ ⦃x : E⦄, x ∈ range ↑I → ∀ ⦃y : E⦄, y ∈ range ↑I → ∀ ⦃a b : ℝ⦄, 0 ≤ a → 0 ≤ b → a + b = 1 → a • x + b • y ∈ range ↑I
u : E
hu : u ∈ range ↑I
v : E
hv : v ∈ range ↑I
a b : ℝ
⊢ 0 ≤ a → 0 ≤ b → a + b = 1 → a • u + b • v ∈ range ↑I

Tactic:
ha

Goal state after:
case pos
𝕜 : Type u_1
inst✝⁴ : NontriviallyNormedField 𝕜
E : Type u_2
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
H : Type u_3
inst✝¹ : TopologicalSpace H
I : ModelWithCorners 𝕜 E H
inst✝ : NormedSpace ℝ E
h : IsRCLikeNormedField 𝕜
this : RCLike 𝕜 := IsRCLikeNormedField.rclike 𝕜
W :
  ∀ ⦃x : E⦄, x ∈ range ↑I → ∀ ⦃y : E⦄, y ∈ range ↑I → ∀ ⦃a b : ℝ⦄, 0 ≤ a → 0 ≤ b → a + b = 1 → a • x + b • y ∈ range ↑I
u : E
hu : u ∈ range ↑I
v : E
hv : v ∈ range ↑I
a b : ℝ
ha : 0 ≤ a
⊢ 0 ≤ b → a + b = 1 → a • u + b • v ∈ range ↑I
Module: Mathlib.Geometry.Manifold.IsManifold.ExtChartAt

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
I : ModelWithCorners 𝕜 E H
e e' : OpenPartialHomeomorph M H
⊢ UniqueDiffOn 𝕜 (extendCoordChange e e').target

Tactic:
← extendCoordChange_symm,

Goal state after:
𝕜 : Type u_1
E : Type u_2
M : Type u_3
H : Type u_4
inst✝⁴ : NontriviallyNormedField 𝕜
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace 𝕜 E
inst✝¹ : TopologicalSpace H
inst✝ : TopologicalSpace M
I : ModelWithCorners 𝕜 E H
e e' : OpenPartialHomeomorph M H
⊢ UniqueDiffOn 𝕜 (extendCoordChange e' e).symm.target
Module: Mathlib.Geometry.Manifold.IsManifold.Basic

Goal state before:
pp: case pos
𝕜 : Type u
inst✝⁴ : NontriviallyNormedField 𝕜
ι : Type v
inst✝³ : Fintype ι
E : ι → Type w
inst✝² : (i : ι) → NormedAddCommGroup (E i)
inst✝¹ : (i : ι) → NormedSpace 𝕜 (E i)
H : ι → Type u'
inst✝ : (i : ι) → TopologicalSpace (H i)
I : (i : ι) → ModelWithCorners 𝕜 (E i) (H i)
h : IsRCLikeNormedField 𝕜
⊢ Convex ℝ (univ.pi fun i ↦ range ↑(I i).toPartialEquiv)

pp: case neg
𝕜 : Type u
inst✝⁴ : NontriviallyNormedField 𝕜
ι : Type v
inst✝³ : Fintype ι
E : ι → Type w
inst✝² : (i : ι) → NormedAddCommGroup (E i)
inst✝¹ : (i : ι) → NormedSpace 𝕜 (E i)
H : ι → Type u'
inst✝ : (i : ι) → TopologicalSpace (H i)
I : (i : ι) → ModelWithCorners 𝕜 (E i) (H i)
h : ¬IsRCLikeNormedField 𝕜
⊢ (univ.pi fun i ↦ range ↑(I i).toPartialEquiv) = univ

Tactic:
· let := h.rclike
      let := fun i ↦ NormedSpace.restrictScalars ℝ 𝕜 (E i)
      exact convex_pi fun i _hi ↦ (I i).convex_range

Goal state after:
case neg
𝕜 : Type u
inst✝⁴ : NontriviallyNormedField 𝕜
ι : Type v
inst✝³ : Fintype ι
E : ι → Type w
inst✝² : (i : ι) → NormedAddCommGroup (E i)
inst✝¹ : (i : ι) → NormedSpace 𝕜 (E i)
H : ι → Type u'
inst✝ : (i : ι) → TopologicalSpace (H i)
I : (i : ι) → ModelWithCorners 𝕜 (E i) (H i)
h : ¬IsRCLikeNormedField 𝕜
⊢ (univ.pi fun i ↦ range ↑(I i).toPartialEquiv) = univ
Module: Mathlib.Geometry.Manifold.LocalInvariantProperties

Goal state before:
pp: H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
G : StructureGroupoid H
G' : StructureGroupoid H'
P : (H → H') → Set H → H → Prop
hG : G.LocalInvariantProp G' P
U : Opens M
f : M → M'
x : ↥U
⊢ ContinuousWithinAt f univ ↑x ∧
      P (↑(chartAt H' (f ↑x)) ∘ f ∘ ↑(chartAt H ↑x).symm) (↑(chartAt H ↑x).symm ⁻¹' univ) (↑(chartAt H ↑x) ↑x) ↔
    ContinuousWithinAt (f ∘ Subtype.val) univ x ∧
      P (↑(chartAt H' ((f ∘ Subtype.val) x)) ∘ (f ∘ Subtype.val) ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' univ)
        (↑(chartAt H x) x)

Tactic:
congrm ?_ ∧ ?_

Goal state after:
case refine_1
H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
G : StructureGroupoid H
G' : StructureGroupoid H'
P : (H → H') → Set H → H → Prop
hG : G.LocalInvariantProp G' P
U : Opens M
f : M → M'
x : ↥U
⊢ ContinuousWithinAt f univ ↑x ↔ ContinuousWithinAt (f ∘ Subtype.val) univ x

case refine_2
H : Type u_1
M : Type u_2
H' : Type u_3
M' : Type u_4
inst✝⁵ : TopologicalSpace H
inst✝⁴ : TopologicalSpace M
inst✝³ : ChartedSpace H M
inst✝² : TopologicalSpace H'
inst✝¹ : TopologicalSpace M'
inst✝ : ChartedSpace H' M'
G : StructureGroupoid H
G' : StructureGroupoid H'
P : (H → H') → Set H → H → Prop
hG : G.LocalInvariantProp G' P
U : Opens M
f : M → M'
x : ↥U
⊢ P (↑(chartAt H' (f ↑x)) ∘ f ∘ ↑(chartAt H ↑x).symm) (↑(chartAt H ↑x).symm ⁻¹' univ) (↑(chartAt H ↑x) ↑x) ↔
    P (↑(chartAt H' ((f ∘ Subtype.val) x)) ∘ (f ∘ Subtype.val) ∘ ↑(chartAt H x).symm) (↑(chartAt H x).symm ⁻¹' univ)
      (↑(chartAt H x) x)