mathlib-initiative/mathlib-tactics huggingface dataset:
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
C :
  ∀ (n : ℕ) (w : E),
    dist w b ≤ ↑f'symm.nnnorm * (1 - (↑c * ↑f'symm.nnnorm) ^ n) / (1 - ↑c * ↑f'symm.nnnorm) * dist (f b) y →
      w ∈ closedBall b ε
D :
  ∀ (n : ℕ),
    dist (f (u n)) y ≤ (↑c * ↑f'symm.nnnorm) ^ n * dist (f b) y ∧
      dist (u n) b ≤ ↑f'symm.nnnorm * (1 - (↑c * ↑f'symm.nnnorm) ^ n) / (1 - ↑c * ↑f'symm.nnnorm) * dist (f b) y
this : CauchySeq u
x : E
hx : Tendsto u atTop (𝓝 x)
xmem : x ∈ closedBall b ε
hx' : Tendsto u atTop (𝓝[closedBall b ε] x)
T1 : Tendsto (f ∘ u) atTop (𝓝 (f x))
⊢ Tendsto (f ∘ u) atTop (𝓝 y)

Tactic:
tendsto_iff_dist_tendsto_zero

Goal state after:
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
C :
  ∀ (n : ℕ) (w : E),
    dist w b ≤ ↑f'symm.nnnorm * (1 - (↑c * ↑f'symm.nnnorm) ^ n) / (1 - ↑c * ↑f'symm.nnnorm) * dist (f b) y →
      w ∈ closedBall b ε
D :
  ∀ (n : ℕ),
    dist (f (u n)) y ≤ (↑c * ↑f'symm.nnnorm) ^ n * dist (f b) y ∧
      dist (u n) b ≤ ↑f'symm.nnnorm * (1 - (↑c * ↑f'symm.nnnorm) ^ n) / (1 - ↑c * ↑f'symm.nnnorm) * dist (f b) y
this : CauchySeq u
x : E
hx : Tendsto u atTop (𝓝 x)
xmem : x ∈ closedBall b ε
hx' : Tendsto u atTop (𝓝[closedBall b ε] x)
T1 : Tendsto (f ∘ u) atTop (𝓝 (f x))
⊢ Tendsto (fun b ↦ dist ((f ∘ u) b) y) atTop (𝓝 0)
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 c : 𝕂
k : ℕ
⊢ (ordinaryHypergeometricSeries 𝔸 a (-↑k) c).radius = ⊤

Tactic:
rw [ordinaryHypergeometricSeries_symm]

Goal state after:
𝕂 : Type u_1
𝔸 : Type u_2
inst✝² : RCLike 𝕂
inst✝¹ : NormedDivisionRing 𝔸
inst✝ : NormedAlgebra 𝕂 𝔸
a c : 𝕂
k : ℕ
⊢ (ordinaryHypergeometricSeries 𝔸 (-↑k) a c).radius = ⊤
Module: Mathlib.Analysis.Meromorphic.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
x : 𝕜
f g : 𝕜 → E
hf : MeromorphicAt f x
hg : MeromorphicAt g x
⊢ MeromorphicAt (f - g) x

Tactic:
convert hf.add hg.neg

Goal state after:
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
x : 𝕜
f g : 𝕜 → E
hf : MeromorphicAt f x
hg : MeromorphicAt g x
⊢ f - g = f + -g
Module: Mathlib.Analysis.Meromorphic.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
x : 𝕜
f : 𝕜 → E
⊢ MeromorphicAt f x ↔ ∃ n g, AnalyticAt 𝕜 g x ∧ ∀ᶠ (z : 𝕜) in 𝓝[≠] x, f z = (z - x) ^ n • g z

Tactic:
refine ⟨fun ⟨n, hn⟩ ↦ ⟨-n, _, ⟨hn, eventually_nhdsWithin_iff.mpr ?_⟩⟩, ?_⟩

Goal state after:
case refine_1
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
x : 𝕜
f : 𝕜 → E
x✝ : MeromorphicAt f x
n : ℕ
hn : AnalyticAt 𝕜 (fun z ↦ (z - x) ^ n • f z) x
⊢ ∀ᶠ (x_1 : 𝕜) in 𝓝 x, x_1 ∈ {x}ᶜ → f x_1 = (x_1 - x) ^ (-↑n) • (x_1 - x) ^ n • f x_1

case refine_2
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
x : 𝕜
f : 𝕜 → E
⊢ (∃ n g, AnalyticAt 𝕜 g x ∧ ∀ᶠ (z : 𝕜) in 𝓝[≠] x, f z = (z - x) ^ n • g z) → MeromorphicAt f x
Module: Mathlib.RingTheory.Binomial

Goal state before:
pp: R : Type u_2
inst✝³ : NonAssocSemiring R
inst✝² : Pow R ℕ
inst✝¹ : NatPowAssoc R
inst✝ : BinomialRing R
r : R
k : ℕ
⊢ ((r + 1) ^ 1 + (↑k).smeval (r + 1)) * (ascPochhammer ℕ k).smeval (r + 1) =
    k.succ • (ascPochhammer ℕ k).smeval (r + 1) + r ^ 1 * (ascPochhammer ℕ k).smeval (r ^ 1 + smeval 1 r)

Tactic:
simp only [smeval_one, npow_one, npow_zero, one_smul]

Goal state after:
R : Type u_2
inst✝³ : NonAssocSemiring R
inst✝² : Pow R ℕ
inst✝¹ : NatPowAssoc R
inst✝ : BinomialRing R
r : R
k : ℕ
⊢ (r + 1 + (↑k).smeval (r + 1)) * (ascPochhammer ℕ k).smeval (r + 1) =
    k.succ • (ascPochhammer ℕ k).smeval (r + 1) + r * (ascPochhammer ℕ k).smeval (r + 1)
Module: Mathlib.Analysis.Meromorphic.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (ball (c - c) R) ↔ MeromorphicOn f (ball 0 R)

Tactic:
sub_self

Goal state after:
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (ball 0 R) ↔ MeromorphicOn f (ball 0 R)
Module: Mathlib.Analysis.Meromorphic.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (closedBall (c - c) R) ↔ MeromorphicOn f (closedBall 0 R)

Tactic:
sub_self

Goal state after:
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (closedBall 0 R) ↔ MeromorphicOn f (closedBall 0 R)
Module: Mathlib.Analysis.Meromorphic.Basic

Goal state before:
pp: 𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (sphere (c - c) R) ↔ MeromorphicOn f (sphere 0 R)

Tactic:
sub_self

Goal state after:
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace 𝕜 E
f : 𝕜 → E
c : 𝕜
R : ℝ
⊢ MeromorphicOn f (sphere 0 R) ↔ MeromorphicOn f (sphere 0 R)
Module: Mathlib.RingTheory.Binomial

Goal state before:
pp: R : Type u_1
inst✝³ : NonAssocRing R
inst✝² : Pow R ℕ
inst✝¹ : BinomialRing R
inst✝ : NatPowAssoc R
r : R
n : ℕ
⊢ (↑n).negOnePow • choose (r + ↑n - 1) n = (↑n).negOnePow • multichoose r n

Tactic:
multichoose_eq

Goal state after:
R : Type u_1
inst✝³ : NonAssocRing R
inst✝² : Pow R ℕ
inst✝¹ : BinomialRing R
inst✝ : NatPowAssoc R
r : R
n : ℕ
⊢ (↑n).negOnePow • choose (r + ↑n - 1) n = (↑n).negOnePow • choose (r + ↑n - 1) n
Module: Mathlib.Analysis.Analytic.RadiusLiminf

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
p : FormalMultilinearSeries 𝕜 E F
r : ℝ≥0
n : ℕ
hn : 0 < n
this : 0 < ↑n
| ↑r ≤ 1 / ↑(‖p n‖₊ ^ (1 / ↑n))

Tactic:
one_div,

Goal state after:
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
p : FormalMultilinearSeries 𝕜 E F
r : ℝ≥0
n : ℕ
hn : 0 < n
this : 0 < ↑n
| ↑r ≤ (↑(‖p n‖₊ ^ (1 / ↑n)))⁻¹
Module: Mathlib.Analysis.Analytic.RadiusLiminf

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
p : FormalMultilinearSeries 𝕜 E F
r : ℝ≥0
n : ℕ
hn : 0 < n
this : 0 < ↑n
| r * ‖p n‖₊ ^ (1 / ↑n) ≤ 1

Tactic:
one_div,

Goal state after:
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
p : FormalMultilinearSeries 𝕜 E F
r : ℝ≥0
n : ℕ
hn : 0 < n
this : 0 < ↑n
| r * ‖p n‖₊ ^ (↑n)⁻¹ ≤ 1
Module: Mathlib.Analysis.SpecialFunctions.Pow.Deriv

Goal state before:
pp: E : Type u_1
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
f g : E → ℝ
f' g' : StrongDual ℝ E
x : E
s : Set E
hf : HasFDerivWithinAt f f' s x
hg : HasFDerivWithinAt g g' s x
h : 0 < f x
⊢ HasFDerivWithinAt (fun x ↦ f x ^ g x) ((g x * f x ^ (g x - 1)) • f' + (f x ^ g x * Real.log (f x)) • g') s x

Tactic:
exact (hasStrictFDerivAt_rpow_of_pos (f x, g x) h).hasFDerivAt.comp_hasFDerivWithinAt x
    (hf.prodMk hg)

Goal state after:
Module: Mathlib.Topology.MetricSpace.MetricSeparated

Goal state before:
pp: X : Type u_1
Y : Type u_2
inst✝¹ : PseudoEMetricSpace X
inst✝ : PseudoEMetricSpace Y
s : Set X
ε K₁ : ℝ≥0
f : X → Y
hs : IsSeparated (↑ε) s
hf : AntilipschitzWith K₁ f
hK₁ : 0 < K₁
⊢ IsSeparated (↑(ε / K₁)) (f '' s)

Tactic:
by
  rintro x' ⟨x, hx, rfl⟩ y' ⟨y, hy, rfl⟩ hne
  have hmul : (↑ε : ℝ≥0∞) < edist (f x) (f y) * ↑K₁ :=
    lt_of_lt_of_le (hs hx hy (by grind)) (by rw [mul_comm]; exact hf x y)
  exact ENNReal.coe_div hK₁.ne' ▸ ENNReal.div_lt_of_lt_mul hmul

Goal state after:
Module: Mathlib.Topology.MetricSpace.Cover

Goal state before:
pp: X : Type u_1
inst✝ : PseudoEMetricSpace X
ε : ℝ≥0
s : Set X
hε : ε ≠ 0
hs : TotallyBounded s
⊢ ∃ N ⊆ s, N.Finite ∧ IsCover ε s N

Tactic:
EMetric.totallyBounded_iff'

Goal state after:
X : Type u_1
inst✝ : PseudoEMetricSpace X
ε : ℝ≥0
s : Set X
hε : ε ≠ 0
hs : ∀ ε > 0, ∃ t ⊆ s, t.Finite ∧ s ⊆ ⋃ y ∈ t, eball y ε
⊢ ∃ N ⊆ s, N.Finite ∧ IsCover ε s N
Module: Mathlib.Topology.MetricSpace.Cover

Goal state before:
pp: X : Type u_1
inst✝¹ : PseudoMetricSpace X
ε : ℝ≥0
s N : Set X
inst✝ : ProperSpace X
hN : IsClosed N
⊢ IsCover ε s N ↔ s ⊆ cthickening (↑ε) N

Tactic:
isCover_iff_subset_iUnion_closedBall,

Goal state after:
X : Type u_1
inst✝¹ : PseudoMetricSpace X
ε : ℝ≥0
s N : Set X
inst✝ : ProperSpace X
hN : IsClosed N
⊢ s ⊆ ⋃ y ∈ N, closedBall y ↑ε ↔ s ⊆ cthickening (↑ε) N
Module: Mathlib.Analysis.AperiodicOrder.Delone.Basic

Goal state before:
pp: case packingRadius
X : Type u_1
Y : Type u_2
inst✝² : MetricSpace X
inst✝¹ : MetricSpace Y
Z : Type u_3
inst✝ : MetricSpace Z
D : DeloneSet X
f : X ≃ Y
g : Y ≃ Z
K₁f K₂f K₁g K₂g : ℝ≥0
hf₁_pos : 0 < K₁f
hf₂_pos : 0 < K₂f
hg₁_pos : 0 < K₁g
hg₂_pos : 0 < K₂g
hf_anti : AntilipschitzWith K₁f ⇑f
hf_lip : LipschitzWith K₂f ⇑f
hg_anti : AntilipschitzWith K₁g ⇑g
hg_lip : LipschitzWith K₂g ⇑g
⊢ ↑(mapBilipschitz g K₁g K₂g hg₁_pos hg₂_pos hg_anti hg_lip
          (mapBilipschitz f K₁f K₂f hf₁_pos hf₂_pos hf_anti hf_lip D)).packingRadius =
    ↑(mapBilipschitz (f.trans g) (K₁f * K₁g) (K₂g * K₂f) ⋯ ⋯ ⋯ ⋯ D).packingRadius

pp: case coveringRadius
X : Type u_1
Y : Type u_2
inst✝² : MetricSpace X
inst✝¹ : MetricSpace Y
Z : Type u_3
inst✝ : MetricSpace Z
D : DeloneSet X
f : X ≃ Y
g : Y ≃ Z
K₁f K₂f K₁g K₂g : ℝ≥0
hf₁_pos : 0 < K₁f
hf₂_pos : 0 < K₂f
hg₁_pos : 0 < K₁g
hg₂_pos : 0 < K₂g
hf_anti : AntilipschitzWith K₁f ⇑f
hf_lip : LipschitzWith K₂f ⇑f
hg_anti : AntilipschitzWith K₁g ⇑g
hg_lip : LipschitzWith K₂g ⇑g
⊢ ↑(mapBilipschitz g K₁g K₂g hg₁_pos hg₂_pos hg_anti hg_lip
          (mapBilipschitz f K₁f K₂f hf₁_pos hf₂_pos hf_anti hf_lip D)).coveringRadius =
    ↑(mapBilipschitz (f.trans g) (K₁f * K₁g) (K₂g * K₂f) ⋯ ⋯ ⋯ ⋯ D).coveringRadius

Tactic:
· simp only [mapBilipschitz_packingRadius, NNReal.coe_div, div_div]

Goal state after:
case coveringRadius
X : Type u_1
Y : Type u_2
inst✝² : MetricSpace X
inst✝¹ : MetricSpace Y
Z : Type u_3
inst✝ : MetricSpace Z
D : DeloneSet X
f : X ≃ Y
g : Y ≃ Z
K₁f K₂f K₁g K₂g : ℝ≥0
hf₁_pos : 0 < K₁f
hf₂_pos : 0 < K₂f
hg₁_pos : 0 < K₁g
hg₂_pos : 0 < K₂g
hf_anti : AntilipschitzWith K₁f ⇑f
hf_lip : LipschitzWith K₂f ⇑f
hg_anti : AntilipschitzWith K₁g ⇑g
hg_lip : LipschitzWith K₂g ⇑g
⊢ ↑(mapBilipschitz g K₁g K₂g hg₁_pos hg₂_pos hg_anti hg_lip
          (mapBilipschitz f K₁f K₂f hf₁_pos hf₂_pos hf_anti hf_lip D)).coveringRadius =
    ↑(mapBilipschitz (f.trans g) (K₁f * K₁g) (K₂g * K₂f) ⋯ ⋯ ⋯ ⋯ D).coveringRadius
Module: Mathlib.Analysis.Asymptotics.SuperpolynomialDecay

Goal state before:
pp: α : Type u_1
β : Type u_2
l : Filter α
k f : α → β
inst✝⁴ : TopologicalSpace β
inst✝³ : Field β
inst✝² : LinearOrder β
inst✝¹ : IsStrictOrderedRing β
inst✝ : OrderTopology β
hk : Tendsto k l atTop
⊢ SuperpolynomialDecay l k f ↔ ∀ (z : ℤ), Tendsto (fun a ↦ k a ^ z * f a) l (𝓝 0)

Tactic:
refine ⟨fun h z => ?_, fun h n => by simpa only [zpow_natCast] using! h (n : ℤ)⟩
  by_cases! hz : 0 ≤ z
  · unfold Tendsto
    lift z to ℕ using hz
    simpa using! h z
  · have : Tendsto (fun a => k a ^ z) l (𝓝 0) :=
      Tendsto.comp (tendsto_zpow_atTop_zero hz) hk
    have h : Tendsto f l (𝓝 0) := by simpa using! h 0
    exact zero_mul (0 : β) ▸ this.mul h

Goal state after:
Module: Mathlib.Analysis.Asymptotics.LinearGrowth

Goal state before:
pp: u v : ℕ → EReal
⊢ linearGrowthInf (u ⊓ v) = min (linearGrowthInf u) (linearGrowthInf v)

Tactic:
rw [linearGrowthInf, linearGrowthInf, linearGrowthInf, ← liminf_min]
  refine liminf_congr (Eventually.of_forall fun n ↦ ?_)
  exact (monotone_div_right_of_nonneg n.cast_nonneg').map_min

Goal state after:
Module: Mathlib.Analysis.Asymptotics.LinearGrowth

Goal state before:
pp: a b : ℝ
h : a < b
hb : 0 ≤ b
x : ℝ
⊢ 0 ≤ x → (∃ n, a * x ≤ ↑n ∧ ↑n ≤ b * x) → ∃ n, a * x ≤ ↑n ∧ ↑n ≤ b * x

Tactic:
x_0

Goal state after:
a b : ℝ
h : a < b
hb : 0 ≤ b
x : ℝ
x_0 : 0 ≤ x
⊢ (∃ n, a * x ≤ ↑n ∧ ↑n ≤ b * x) → ∃ n, a * x ≤ ↑n ∧ ↑n ≤ b * x
Module: Mathlib.Analysis.Asymptotics.LinearGrowth

Goal state before:
pp: case pos
u : ℕ → EReal
v : ℕ → ℕ
a : EReal
h : Monotone u
hv : Tendsto (fun n ↦ ↑(v n) / ↑n) atTop (𝓝 a)
ha : a ≠ 0
ha' : a ≠ ⊤
hv₁ : 0 < liminf (fun n ↦ ↑(v n) / ↑n) atTop
v_top : Tendsto v atTop atTop
u_0 : ¬u = ⊥
h' : ∃ᶠ (n : ℕ) in atTop, u n ≤ 0
⊢ linearGrowthInf (u ∘ v) = a * linearGrowthInf u

pp: case neg
u : ℕ → EReal
v : ℕ → ℕ
a : EReal
h : Monotone u
hv : Tendsto (fun n ↦ ↑(v n) / ↑n) atTop (𝓝 a)
ha : a ≠ 0
ha' : a ≠ ⊤
hv₁ : 0 < liminf (fun n ↦ ↑(v n) / ↑n) atTop
v_top : Tendsto v atTop atTop
u_0 : ¬u = ⊥
h' : ∀ᶠ (x : ℕ) in atTop, 0 < u x
⊢ linearGrowthInf (u ∘ v) = a * linearGrowthInf u

Tactic:
· replace h' (n : ℕ) : u n ≤ 0 := by
      obtain ⟨m, n_m, um_1⟩ := (frequently_atTop.1 h') n
      exact (h n_m).trans um_1
    have u_0' : linearGrowthInf u = 0 := by
      apply le_antisymm _ (h.linearGrowthInf_nonneg u_0)
      exact (linearGrowthInf_monotone h').trans_eq (linearGrowthInf_const zero_ne_bot zero_ne_top)
    rw [u_0', mul_zero]
    apply le_antisymm _ (linearGrowthInf_comp_nonneg h u_0 v_top)
    apply (linearGrowthInf_monotone fun n ↦ h' (v n)).trans_eq
    exact linearGrowthInf_const zero_ne_bot zero_ne_top

Goal state after:
case neg
u : ℕ → EReal
v : ℕ → ℕ
a : EReal
h : Monotone u
hv : Tendsto (fun n ↦ ↑(v n) / ↑n) atTop (𝓝 a)
ha : a ≠ 0
ha' : a ≠ ⊤
hv₁ : 0 < liminf (fun n ↦ ↑(v n) / ↑n) atTop
v_top : Tendsto v atTop atTop
u_0 : ¬u = ⊥
h' : ∀ᶠ (x : ℕ) in atTop, 0 < u x
⊢ linearGrowthInf (u ∘ v) = a * linearGrowthInf u
Module: Mathlib.MeasureTheory.Covering.Vitali

Goal state before:
pp: α : Type u_1
ι : Type u_2
inst✝ : PseudoMetricSpace α
t : Set ι
x : ι → α
r : ι → ℝ
R : ℝ
hr : ∀ a ∈ t, r a ≤ R
τ : ℝ
hτ : 3 < τ
h✝ : t.Nonempty
ht : ∃ a ∈ t, 0 ≤ r a
t' : Set ι := {a | a ∈ t ∧ 0 ≤ r a}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint fun a ↦ closedBall (x a) (r a)
hu : ∀ a ∈ t', ∃ b ∈ u, (closedBall (x a) (r a) ∩ closedBall (x b) (r b)).Nonempty ∧ r a ≤ (τ - 1) / 2 * r b
a : ι
ha : a ∈ t'
b : ι
bu : b ∈ u
hb : (closedBall (x a) (r a) ∩ closedBall (x b) (r b)).Nonempty
rb : r a ≤ (τ - 1) / 2 * r b
⊢ ∃ b ∈ u, closedBall (x a) (r a) ⊆ closedBall (x b) (τ * r b)

Tactic:
refine ⟨b, bu, ?_⟩

Goal state after:
α : Type u_1
ι : Type u_2
inst✝ : PseudoMetricSpace α
t : Set ι
x : ι → α
r : ι → ℝ
R : ℝ
hr : ∀ a ∈ t, r a ≤ R
τ : ℝ
hτ : 3 < τ
h✝ : t.Nonempty
ht : ∃ a ∈ t, 0 ≤ r a
t' : Set ι := {a | a ∈ t ∧ 0 ≤ r a}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint fun a ↦ closedBall (x a) (r a)
hu : ∀ a ∈ t', ∃ b ∈ u, (closedBall (x a) (r a) ∩ closedBall (x b) (r b)).Nonempty ∧ r a ≤ (τ - 1) / 2 * r b
a : ι
ha : a ∈ t'
b : ι
bu : b ∈ u
hb : (closedBall (x a) (r a) ∩ closedBall (x b) (r b)).Nonempty
rb : r a ≤ (τ - 1) / 2 * r b
⊢ closedBall (x a) (r a) ⊆ closedBall (x b) (τ * r b)
Module: Mathlib.MeasureTheory.Integral.Average

Goal state before:
pp: α : Type u_1
m0 : MeasurableSpace α
μ : Measure α
s : Set α
f : α → ℝ≥0∞
h : μ s ≠ ∞
⊢ μ s * ⨍⁻ (x : α) in s, f x ∂μ = ∫⁻ (x : α) in s, f x ∂μ

Tactic:
have := Fact.mk h.lt_top

Goal state after:
α : Type u_1
m0 : MeasurableSpace α
μ : Measure α
s : Set α
f : α → ℝ≥0∞
h : μ s ≠ ∞
this : Fact (μ s < ∞)
⊢ μ s * ⨍⁻ (x : α) in s, f x ∂μ = ∫⁻ (x : α) in s, f x ∂μ
Module: Mathlib.MeasureTheory.Covering.Vitali

Goal state before:
pp: α : Type u_1
ι : Type u_2
inst✝ : PseudoMetricSpace α
t : Set ι
x : ι → α
r : ι → ℝ
R : ℝ
hr : ∀ a ∈ t, r a ≤ R
τ : ℝ
hτ : 3 < τ
h✝ : t.Nonempty
ht : ∃ a ∈ t, 0 < r a
t' : Set ι := {a | a ∈ t ∧ 0 < r a}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint fun a ↦ ball (x a) (r a)
hu : ∀ a ∈ t', ∃ b ∈ u, (ball (x a) (r a) ∩ ball (x b) (r b)).Nonempty ∧ r a ≤ (τ - 1) / 2 * r b
a : ι
ha : a ∈ t'
b : ι
bu : b ∈ u
hb : (ball (x a) (r a) ∩ ball (x b) (r b)).Nonempty
rb : r a ≤ (τ - 1) / 2 * r b
⊢ ∃ b ∈ u, ball (x a) (r a) ⊆ ball (x b) (τ * r b)

Tactic:
refine ⟨b, bu, ?_⟩

Goal state after:
α : Type u_1
ι : Type u_2
inst✝ : PseudoMetricSpace α
t : Set ι
x : ι → α
r : ι → ℝ
R : ℝ
hr : ∀ a ∈ t, r a ≤ R
τ : ℝ
hτ : 3 < τ
h✝ : t.Nonempty
ht : ∃ a ∈ t, 0 < r a
t' : Set ι := {a | a ∈ t ∧ 0 < r a}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint fun a ↦ ball (x a) (r a)
hu : ∀ a ∈ t', ∃ b ∈ u, (ball (x a) (r a) ∩ ball (x b) (r b)).Nonempty ∧ r a ≤ (τ - 1) / 2 * r b
a : ι
ha : a ∈ t'
b : ι
bu : b ∈ u
hb : (ball (x a) (r a) ∩ ball (x b) (r b)).Nonempty
rb : r a ≤ (τ - 1) / 2 * r b
⊢ ball (x a) (r a) ⊆ ball (x b) (τ * r b)
Module: Mathlib.MeasureTheory.Integral.Average

Goal state before:
pp: α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
μ : Measure α
f : α → E
s : Set α
h : μ s ≠ ∞
⊢ μ.real s • ⨍ (x : α) in s, f x ∂μ = ∫ (x : α) in s, f x ∂μ

Tactic:
have := Fact.mk h.lt_top

Goal state after:
α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
μ : Measure α
f : α → E
s : Set α
h : μ s ≠ ∞
this : Fact (μ s < ∞)
⊢ μ.real s • ⨍ (x : α) in s, f x ∂μ = ∫ (x : α) in s, f x ∂μ
Module: Mathlib.MeasureTheory.Integral.Average

Goal state before:
pp: case pos
α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
inst✝¹ : CompleteSpace E
μ : Measure α
inst✝ : IsFiniteMeasure μ
f : α → E
hf : Integrable f μ
⊢ ∫ (a : α), f a ∂μ - ∫ (x : α), f x ∂μ = 0

Tactic:
sub_self

Goal state after:
case pos
α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
inst✝¹ : CompleteSpace E
μ : Measure α
inst✝ : IsFiniteMeasure μ
f : α → E
hf : Integrable f μ
⊢ 0 = 0
Module: Mathlib.MeasureTheory.Integral.Average

Goal state before:
pp: α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
μ : Measure α
f : α → E
inst✝¹ : CompleteSpace E
inst✝ : IsFiniteMeasure μ
hf : Integrable f μ
⊢ ∫ (x : α), f x ∂μ - ∫ (a : α), f a ∂μ = 0

Tactic:
sub_self

Goal state after:
α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
μ : Measure α
f : α → E
inst✝¹ : CompleteSpace E
inst✝ : IsFiniteMeasure μ
hf : Integrable f μ
⊢ 0 = 0
Module: Mathlib.MeasureTheory.Function.AEEqOfLIntegral

Goal state before:
pp: α : Type u_1
m : MeasurableSpace α
μ : Measure α
inst✝ : SigmaFinite μ
f g : α → ℝ≥0∞
hf : AEMeasurable f μ
hg : AEMeasurable g μ
hfg : μ.withDensity f = μ.withDensity g
⊢ f =ᵐ[μ] g

Tactic:
refine ae_eq_of_forall_setLIntegral_eq_of_sigmaFinite₀ hf hg fun s hs _ ↦ ?_

Goal state after:
α : Type u_1
m : MeasurableSpace α
μ : Measure α
inst✝ : SigmaFinite μ
f g : α → ℝ≥0∞
hf : AEMeasurable f μ
hg : AEMeasurable g μ
hfg : μ.withDensity f = μ.withDensity g
s : Set α
hs : MeasurableSet s
x✝ : μ s < ∞
⊢ ∫⁻ (x : α) in s, f x ∂μ = ∫⁻ (x : α) in s, g x ∂μ
Module: Mathlib.MeasureTheory.Measure.Sub

Goal state before:
pp: case a
α : Type u_1
m : MeasurableSpace α
μ ν : Measure α
s : Set α
inst✝ : IsFiniteMeasure ν
h₁ : MeasurableSet s
h₂ : ν ≤ μ
measure_sub : Measure α := ⋯
h_measure_sub_add : ν + measure_sub = μ
⊢ ∀ b ∈ {d | μ ≤ d + ν}, measure_sub ≤ b

Tactic:
intro d h_d

Goal state after:
case a
α : Type u_1
m : MeasurableSpace α
μ ν : Measure α
s : Set α
inst✝ : IsFiniteMeasure ν
h₁ : MeasurableSet s
h₂ : ν ≤ μ
measure_sub : Measure α := ofMeasurable (fun t x ↦ μ t - ν t) ⋯ ⋯
h_measure_sub_add : ν + measure_sub = μ
d : Measure α
h_d : d ∈ {d | μ ≤ d + ν}
⊢ measure_sub ≤ d
Module: Mathlib.MeasureTheory.Covering.Vitali

Goal state before:
pp: α : Type u_1
ι : Type u_2
inst✝⁴ : PseudoMetricSpace α
inst✝³ : MeasurableSpace α
inst✝² : OpensMeasurableSpace α
inst✝¹ : SecondCountableTopology α
μ : Measure α
inst✝ : IsLocallyFiniteMeasure μ
s : Set α
t : Set ι
C : ℝ≥0
r : ι → ℝ
c : ι → α
B : ι → Set α
hB : ∀ a ∈ t, B a ⊆ closedBall (c a) (r a)
μB : ∀ a ∈ t, μ (closedBall (c a) (3 * r a)) ≤ ↑C * μ (B a)
ht : ∀ a ∈ t, (interior (B a)).Nonempty
h't : ∀ a ∈ t, IsClosed[PseudoMetricSpace.toUniformSpace.toTopologicalSpace] (B a)
hf : ∀ x ∈ s, ∀ ε > 0, ∃ a ∈ t, r a ≤ ε ∧ c a = x
R : α → ℝ
hR0 : ∀ (x : α), 0 < R x
hR1 : ∀ (x : α), R x ≤ 1
hRμ : ∀ (x : α), μ (closedBall x (20 * R x)) < ∞
t' : Set ι := {a | a ∈ t ∧ r a ≤ R (c a)}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint B
hu : ∀ a ∈ t', ∃ b ∈ u, (B a ∩ B b).Nonempty ∧ r a ≤ 2 * r b
ut : u ⊆ t
u_count : u.Countable
x : α
x✝ : x ∈ s \ ⋃ a ∈ u, B a
v : Set ι := {a | a ∈ u ∧ (B a ∩ ball x (R x)).Nonempty}
vu : v ⊆ u
K : ℝ
μK : μ (closedBall x K) < ∞
hK : ∀ a ∈ u, (B a ∩ ball x (R x)).Nonempty → B a ⊆ closedBall x K
⊢ ∃ u_1 ∈ 𝓝[s \ ⋃ a ∈ u, B a] x, μ u_1 = 0

Tactic:
refine ⟨_ ∩ ball x (R x), inter_mem_nhdsWithin _ (ball_mem_nhds _ (hR0 _)),
    nonpos_iff_eq_zero.mp (le_of_forall_gt_imp_ge_of_dense fun ε εpos => ?_)⟩

Goal state after:
α : Type u_1
ι : Type u_2
inst✝⁴ : PseudoMetricSpace α
inst✝³ : MeasurableSpace α
inst✝² : OpensMeasurableSpace α
inst✝¹ : SecondCountableTopology α
μ : Measure α
inst✝ : IsLocallyFiniteMeasure μ
s : Set α
t : Set ι
C : ℝ≥0
r : ι → ℝ
c : ι → α
B : ι → Set α
hB : ∀ a ∈ t, B a ⊆ closedBall (c a) (r a)
μB : ∀ a ∈ t, μ (closedBall (c a) (3 * r a)) ≤ ↑C * μ (B a)
ht : ∀ a ∈ t, (interior (B a)).Nonempty
h't : ∀ a ∈ t, IsClosed[PseudoMetricSpace.toUniformSpace.toTopologicalSpace] (B a)
hf : ∀ x ∈ s, ∀ ε > 0, ∃ a ∈ t, r a ≤ ε ∧ c a = x
R : α → ℝ
hR0 : ∀ (x : α), 0 < R x
hR1 : ∀ (x : α), R x ≤ 1
hRμ : ∀ (x : α), μ (closedBall x (20 * R x)) < ∞
t' : Set ι := {a | a ∈ t ∧ r a ≤ R (c a)}
u : Set ι
ut' : u ⊆ t'
u_disj : u.PairwiseDisjoint B
hu : ∀ a ∈ t', ∃ b ∈ u, (B a ∩ B b).Nonempty ∧ r a ≤ 2 * r b
ut : u ⊆ t
u_count : u.Countable
x : α
x✝ : x ∈ s \ ⋃ a ∈ u, B a
v : Set ι := {a | a ∈ u ∧ (B a ∩ ball x (R x)).Nonempty}
vu : v ⊆ u
K : ℝ
μK : μ (closedBall x K) < ∞
hK : ∀ a ∈ u, (B a ∩ ball x (R x)).Nonempty → B a ⊆ closedBall x K
ε : ℝ≥0∞
εpos : 0 < ε
⊢ μ ((s \ ⋃ a ∈ u, B a) ∩ ball x (R x)) ≤ ε