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

Goal state before:
pp: α : Type u_1
inst✝¹ : MeasurableSpace α
f : α → ℝ
g : ℝ → ℝ
μ : Measure α
inst✝ : SFinite μ
f_nn : 0 ≤ f
f_mble : Measurable f
g_intble : ∀ t > 0, IntervalIntegrable g volume 0 t
g_mble : Measurable g
g_nn : ∀ t > 0, 0 ≤ g t
g_intble' : ∀ (t : ℝ), 0 ≤ t → IntervalIntegrable g volume 0 t
integrand_eq : ∀ (ω : α), ENNReal.ofReal (∫ (t : ℝ) in 0..f ω, g t) = ∫⁻ (t : ℝ) in Ioc 0 (f ω), ENNReal.ofReal (g t)
s : ℝ
⊢ ∫⁻ (x : α), (Ioc 0 (f x)).indicator (fun t ↦ ENNReal.ofReal (g t)) s ∂μ =
    (Ioi 0).indicator (fun t ↦ μ {a | t ≤ f a} * ENNReal.ofReal (g t)) s

Tactic:
have aux₁ :
      (fun x => (Ioc 0 (f x)).indicator (fun t : ℝ => ENNReal.ofReal (g t)) s) = fun x =>
        ENNReal.ofReal (g s) * (Ioi (0 : ℝ)).indicator (fun _ => 1) s *
          (Ici s).indicator (fun _ : ℝ => (1 : ℝ≥0∞)) (f x) := by
      funext a
      by_cases h : s ∈ Ioc (0 : ℝ) (f a)
      · simp only [h, show s ∈ Ioi (0 : ℝ) from h.1, show f a ∈ Ici s from h.2, indicator_of_mem,
          mul_one]
      · have h_copy := h
        simp only [mem_Ioc, not_and, not_le] at h
        by_cases h' : 0 < s
        · simp only [h_copy, h h', indicator_of_notMem, not_false_iff, mem_Ici, not_le, mul_zero]
        · have : s ∉ Ioi (0 : ℝ) := h'
          simp only [this, h', indicator_of_notMem, not_false_iff, mul_zero,
            zero_mul, mem_Ioc, false_and]

Goal state after:
α : Type u_1
inst✝¹ : MeasurableSpace α
f : α → ℝ
g : ℝ → ℝ
μ : Measure α
inst✝ : SFinite μ
f_nn : 0 ≤ f
f_mble : Measurable f
g_intble : ∀ t > 0, IntervalIntegrable g volume 0 t
g_mble : Measurable g
g_nn : ∀ t > 0, 0 ≤ g t
g_intble' : ∀ (t : ℝ), 0 ≤ t → IntervalIntegrable g volume 0 t
integrand_eq : ∀ (ω : α), ENNReal.ofReal (∫ (t : ℝ) in 0..f ω, g t) = ∫⁻ (t : ℝ) in Ioc 0 (f ω), ENNReal.ofReal (g t)
s : ℝ
aux₁ :
  (fun x ↦ (Ioc 0 (f x)).indicator (fun t ↦ ENNReal.ofReal (g t)) s) = fun x ↦
    ENNReal.ofReal (g s) * (Ioi 0).indicator (fun x ↦ 1) s * (Ici s).indicator (fun x ↦ 1) (f x)
⊢ ∫⁻ (x : α), (Ioc 0 (f x)).indicator (fun t ↦ ENNReal.ofReal (g t)) s ∂μ =
    (Ioi 0).indicator (fun t ↦ μ {a | t ≤ f a} * ENNReal.ofReal (g t)) s
Module: Mathlib.Analysis.Distribution.TemperateGrowth

Goal state before:
pp: E : Type u_5
F : Type u_6
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
hf_temperate : HasTemperateGrowth f
n : ℕ
⊢ ∃ k C, 0 ≤ C ∧ ∀ N ≤ n, ∀ (x : E), ‖iteratedFDeriv ℝ N f x‖ ≤ C * (1 + ‖x‖) ^ k

Tactic:
by
  rcases hf_temperate.isBigO_uniform n with ⟨k, hk⟩
  set F := fun x (N : Fin (n + 1)) ↦ iteratedFDeriv ℝ N f x
  have : F =O[⊤] (fun x ↦ (1 + ‖x‖) ^ k) := by
    simp_rw [F, isBigO_pi, Fin.forall_iff, Nat.lt_succ_iff]
    exact hk
  rcases this.exists_nonneg with ⟨C, C_nonneg, hC⟩
  simp (discharger := positivity) only [isBigOWith_top, Real.norm_of_nonneg,
    pi_norm_le_iff_of_nonneg, Fin.forall_iff, Nat.lt_succ_iff] at hC
  exact ⟨k, C, C_nonneg, fun N hN x ↦ hC x N hN⟩

Goal state after:
Module: Mathlib.Analysis.Distribution.TemperateGrowth

Goal state before:
pp: E : Type u_5
F : Type u_6
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
h₁ : HasCompactSupport f
h₂ : ContDiff ℝ ∞ f
⊢ HasTemperateGrowth f

Tactic:
refine ⟨h₂, fun n ↦ ?_⟩

Goal state after:
E : Type u_5
F : Type u_6
inst✝³ : NormedAddCommGroup E
inst✝² : NormedSpace ℝ E
inst✝¹ : NormedAddCommGroup F
inst✝ : NormedSpace ℝ F
f : E → F
h₁ : HasCompactSupport f
h₂ : ContDiff ℝ ∞ f
n : ℕ
⊢ ∃ k C, ∀ (x : E), ‖iteratedFDeriv ℝ n f x‖ ≤ C * (1 + ‖x‖) ^ k
Module: Mathlib.MeasureTheory.Integral.Layercake

Goal state before:
pp: α : Type u_1
inst✝ : MeasurableSpace α
f : α → ℝ
g : ℝ → ℝ
μ : Measure α
f_nn : 0 ≤ᵐ[μ] f
f_mble : AEMeasurable f μ
g_intble : ∀ t > 0, IntervalIntegrable g volume 0 t
g_nn : ∀ᵐ (t : ℝ) ∂volume.restrict (Ioi 0), 0 ≤ g t
⊢ ∃ G, Measurable G ∧ 0 ≤ G ∧ g =ᵐ[volume.restrict (Ioi 0)] G

Tactic:
refine AEMeasurable.exists_measurable_nonneg ?_ g_nn
    exact aemeasurable_Ioi_of_forall_Ioc fun t ht => (g_intble t ht).1.1.aemeasurable

Goal state after:
Module: Mathlib.Analysis.Distribution.TemperateGrowth

Goal state before:
pp: case h
H : Type u_8
inst✝¹ : NormedAddCommGroup H
inst✝ : InnerProductSpace ℝ H
r : ℝ
t : Set ℝ := {y | 1 / 2 < y}
ht : (Set.range fun x ↦ 1 + ‖x‖ ^ 2) ⊆ t
hdiff : ContDiffOn ℝ ∞ (fun x ↦ x ^ r) t
hunique : UniqueDiffOn ℝ t
N k : ℕ
hk : max r ((↑N - r) * Real.log 2 / Real.log (3 / 2)) ≤ ↑k
hk₁ : r ≤ ↑k
hk₂ : Real.log 2 * (↑N - r) ≤ Real.log (3 / 2) * ↑k
n : ℕ
hn : n ≤ N
⊢ ∀ x ∈ t,
    ‖iteratedFDerivWithin ℝ n (fun x ↦ x ^ r) t x‖ ≤
      (∑ k ∈ Finset.range (N + 1), ‖Polynomial.eval r (descPochhammer ℝ k)‖) * (1 + ‖x‖) ^ k

Tactic:
x

Goal state after:
case h
H : Type u_8
inst✝¹ : NormedAddCommGroup H
inst✝ : InnerProductSpace ℝ H
r : ℝ
t : Set ℝ := {y | 1 / 2 < y}
ht : (Set.range fun x ↦ 1 + ‖x‖ ^ 2) ⊆ t
hdiff : ContDiffOn ℝ ∞ (fun x ↦ x ^ r) t
hunique : UniqueDiffOn ℝ t
N k : ℕ
hk : max r ((↑N - r) * Real.log 2 / Real.log (3 / 2)) ≤ ↑k
hk₁ : r ≤ ↑k
hk₂ : Real.log 2 * (↑N - r) ≤ Real.log (3 / 2) * ↑k
n : ℕ
hn : n ≤ N
x : ℝ
⊢ x ∈ t →
    ‖iteratedFDerivWithin ℝ n (fun x ↦ x ^ r) t x‖ ≤
      (∑ k ∈ Finset.range (N + 1), ‖Polynomial.eval r (descPochhammer ℝ k)‖) * (1 + ‖x‖) ^ k
Module: Mathlib.Analysis.Distribution.TestFunction

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_3
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace ℝ E
Ω : Opens E
n : ℕ∞
m : MeasurableSpace E
inst✝⁷ : OpensMeasurableSpace E
F₁ : Type u_6
F₂ : Type u_7
F₃ : Type u_8
inst✝⁶ : NormedAddCommGroup F₁
inst✝⁵ : NormedSpace 𝕜 F₁
inst✝⁴ : NormedSpace ℝ F₁
inst✝³ : NormedAddCommGroup F₂
inst✝² : NormedSpace 𝕜 F₂
inst✝¹ : NormedAddCommGroup F₃
inst✝ : NormedSpace 𝕜 F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
μ : Measure E
φ : E → F₂
f : 𝓓^{n}(Ω, F₁)
hφ : IntegrableOn φ (tsupport ⇑f) μ
⊢ IntegrableOn (fun x ↦ (B (f x)) (φ x)) (tsupport ⇑f) μ

Tactic:
IntegrableOn,

Goal state after:
𝕜 : Type u_1
inst✝¹⁰ : NontriviallyNormedField 𝕜
E : Type u_3
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace ℝ E
Ω : Opens E
n : ℕ∞
m : MeasurableSpace E
inst✝⁷ : OpensMeasurableSpace E
F₁ : Type u_6
F₂ : Type u_7
F₃ : Type u_8
inst✝⁶ : NormedAddCommGroup F₁
inst✝⁵ : NormedSpace 𝕜 F₁
inst✝⁴ : NormedSpace ℝ F₁
inst✝³ : NormedAddCommGroup F₂
inst✝² : NormedSpace 𝕜 F₂
inst✝¹ : NormedAddCommGroup F₃
inst✝ : NormedSpace 𝕜 F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
μ : Measure E
φ : E → F₂
f : 𝓓^{n}(Ω, F₁)
hφ : Integrable φ (μ.restrict (tsupport ⇑f))
⊢ Integrable (fun x ↦ (B (f x)) (φ x)) (μ.restrict (tsupport ⇑f))
Module: Mathlib.Analysis.Distribution.TestFunction

Goal state before:
pp: E : Type u_3
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace ℝ E
Ω : Opens E
F : Type u_4
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace ℝ F
n : ℕ∞
m : MeasurableSpace E
inst✝ : OpensMeasurableSpace E
μ : Measure E
f : 𝓓^{n}(Ω, F)
H : IntegrableOn (fun x ↦ 1) (tsupport ⇑f) μ
⊢ IntegrableOn (⇑(1 • f)) (tsupport ⇑f) μ

Tactic:
IntegrableOn,

Goal state after:
E : Type u_3
inst✝⁴ : NormedAddCommGroup E
inst✝³ : NormedSpace ℝ E
Ω : Opens E
F : Type u_4
inst✝² : NormedAddCommGroup F
inst✝¹ : NormedSpace ℝ F
n : ℕ∞
m : MeasurableSpace E
inst✝ : OpensMeasurableSpace E
μ : Measure E
f : 𝓓^{n}(Ω, F)
H : Integrable (fun x ↦ 1) (μ.restrict (tsupport ⇑f))
⊢ Integrable (⇑(1 • f)) (μ.restrict (tsupport ⇑f))
Module: Mathlib.Analysis.Distribution.TestFunction

Goal state before:
pp: 𝕜 : Type u_1
inst✝¹⁴ : NontriviallyNormedField 𝕜
E : Type u_3
inst✝¹³ : NormedAddCommGroup E
inst✝¹² : NormedSpace ℝ E
Ω : Opens E
n : ℕ∞
m : MeasurableSpace E
inst✝¹¹ : OpensMeasurableSpace E
F₁ : Type u_6
F₂ : Type u_7
F₃ : Type u_8
inst✝¹⁰ : NormedAddCommGroup F₁
inst✝⁹ : NormedSpace 𝕜 F₁
inst✝⁸ : NormedSpace ℝ F₁
inst✝⁷ : NormedAddCommGroup F₂
inst✝⁶ : NormedSpace 𝕜 F₂
inst✝⁵ : NormedAddCommGroup F₃
inst✝⁴ : NormedSpace 𝕜 F₃
inst✝³ : Algebra ℝ 𝕜
inst✝² : IsScalarTower ℝ 𝕜 F₁
inst✝¹ : NormedSpace ℝ F₃
inst✝ : IsScalarTower ℝ 𝕜 F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
μ : Measure E
φ : E → F₂
hφ : LocallyIntegrableOn φ (↑Ω) μ
K : Compacts E
K_sub_Ω : ↑K ⊆ ↑Ω
f : 𝓓^{n}_{K}(E, F₁)
⊢ (integralAgainstBilinCLM B μ φ) (ofSupportedIn K_sub_Ω f) = (ContDiffMapSupportedIn.integralAgainstBilinCLM B μ φ) f

Tactic:
by
  have hφ' := hφ.integrableOn_compact_subset K_sub_Ω K.isCompact
  simp [hφ, hφ']

Goal state after:
Module: Mathlib.Analysis.Distribution.TemperateGrowth

Goal state before:
pp: C₁ C₂ : ℝ
k l : ℕ
x f : ℝ
hx : 0 ≤ x
hf : 0 ≤ f
h₁ : f ≤ C₁
h₂ : x ^ (k + l) * f ≤ C₂
this✝ : 0 ≤ C₂
this : 2 ^ l * (C₁ + C₂) * (1 + x) ^ (-↑l) = ((1 + x) / 2) ^ (-↑l) * (C₁ + C₂)
h'x : 1 ≤ x
⊢ x ^ (k + l) * f ≤ C₁ + C₂

Tactic:
· exact h₂.trans (by linarith)

Goal state after:
Module: Mathlib.Analysis.Distribution.TemperateGrowth

Goal state before:
pp: C₁ C₂ : ℝ
k l : ℕ
x f : ℝ
hx : 0 ≤ x
hf : 0 ≤ f
h₁ : f ≤ C₁
h₂ : x ^ (k + l) * f ≤ C₂
⊢ x ^ k * f ≤ 2 ^ l * (C₁ + C₂) * (1 + x) ^ (-↑l)

Tactic:
by
  have : 0 ≤ C₂ := le_trans (by positivity) h₂
  have : 2 ^ l * (C₁ + C₂) * (1 + x) ^ (- (l : ℝ)) = ((1 + x) / 2) ^ (-(l : ℝ)) * (C₁ + C₂) := by
    rw [Real.div_rpow (by positivity) zero_le_two]
    simp [div_eq_inv_mul, ← Real.rpow_neg_one, ← Real.rpow_mul]
    ring
  rw [this]
  rcases le_total x 1 with h'x | h'x
  · gcongr
    · apply (pow_le_one₀ hx h'x).trans
      apply Real.one_le_rpow_of_pos_of_le_one_of_nonpos
      · positivity
      · linarith
      · simp
    · linarith
  · calc
    x ^ k * f = x ^ (-(l : ℝ)) * (x ^ (k + l) * f) := by
      rw [← Real.rpow_natCast, ← Real.rpow_natCast, ← mul_assoc, ← Real.rpow_add (by positivity)]
      simp
    _ ≤ ((1 + x) / 2) ^ (-(l : ℝ)) * (C₁ + C₂) := by
      apply mul_le_mul _ _ (by positivity) (by positivity)
      · exact Real.rpow_le_rpow_of_nonpos (by positivity) (by linarith) (by simp)
      · exact h₂.trans (by linarith)

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

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁴ : RCLike 𝕜
E : Type u_2
inst✝³ : NormedAddCommGroup E
inst✝² : InnerProductSpace 𝕜 E
inst✝¹ : FiniteDimensional 𝕜 E
T : E →ₗ[𝕜] E
inst✝ : Nontrivial E
hT : T.IsSymmetric
⊢ HasEigenvalue T ↑(⨆ x, re ⟪T ↑x, ↑x⟫_𝕜 / ‖↑x‖ ^ 2)

Tactic:
by
  have := FiniteDimensional.proper_rclike 𝕜 E
  let T' := hT.toSelfAdjoint
  obtain ⟨x, hx⟩ : ∃ x : E, x ≠ 0 := exists_ne 0
  have H₁ : IsCompact (sphere (0 : E) ‖x‖) := isCompact_sphere _ _
  have H₂ : (sphere (0 : E) ‖x‖).Nonempty := ⟨x, by simp⟩
  -- key point: in finite dimension, a continuous function on the sphere has a max
  obtain ⟨x₀, hx₀', hTx₀⟩ :=
    H₁.exists_isMaxOn H₂ T'.val.reApplyInnerSelf_continuous.continuousOn
  have hx₀ : ‖x₀‖ = ‖x‖ := by simpa using hx₀'
  have : IsMaxOn T'.val.reApplyInnerSelf (sphere 0 ‖x₀‖) x₀ := by simpa only [← hx₀] using hTx₀
  have hx₀_ne : x₀ ≠ 0 := by
    have : ‖x₀‖ ≠ 0 := by simp only [hx₀, norm_eq_zero, hx, Ne, not_false_iff]
    simpa [← norm_eq_zero, Ne]
  exact hasEigenvalue_of_hasEigenvector (T'.prop.hasEigenvector_of_isMaxOn hx₀_ne this)

Goal state after:
Module: Mathlib.Data.Fin.Tuple.Sort

Goal state before:
pp: n : ℕ
σ : Equiv.Perm (Fin n)
⊢ sort ⇑σ = σ⁻¹

Tactic:
apply (eq_sort_iff.2 ⟨?_ , ?_⟩).symm
  · simpa using monotone_id
  · intro _ _ hij h
    exact (hij.ne (by simpa using h)).elim

Goal state after:
Module: Mathlib.Analysis.Matrix.PosDef

Goal state before:
pp: m : Type u_1
n : Type u_2
𝕜 : Type u_3
inst✝² : Fintype m
inst✝¹ : Fintype n
inst✝ : RCLike 𝕜
A M : Matrix n n 𝕜
hM : M.PosSemidef
x y : n → 𝕜
⊢ star (star (star (M *ᵥ x) ⬝ᵥ y)) = M *ᵥ y ⬝ᵥ star x

Tactic:
star_star,

Goal state after:
m : Type u_1
n : Type u_2
𝕜 : Type u_3
inst✝² : Fintype m
inst✝¹ : Fintype n
inst✝ : RCLike 𝕜
A M : Matrix n n 𝕜
hM : M.PosSemidef
x y : n → 𝕜
⊢ star (M *ᵥ x) ⬝ᵥ y = M *ᵥ y ⬝ᵥ star x
Module: Mathlib.Analysis.InnerProductSpace.Spectrum

Goal state before:
pp: 𝕜 : Type u_1
inst✝³ : RCLike 𝕜
E : Type u_2
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
T : E →ₗ[𝕜] E
inst✝ : FiniteDimensional 𝕜 E
n : ℕ
hT : T.IsSymmetric
hn : finrank 𝕜 E = n
μ : 𝕜
⊢ {i | ↑(hT.eigenvalues hn i) = μ}.card = finrank 𝕜 ↥(eigenspace T μ)

Tactic:
← hT.card_filter_unsortedEigenvalues_eq hn,

Goal state after:
𝕜 : Type u_1
inst✝³ : RCLike 𝕜
E : Type u_2
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
T : E →ₗ[𝕜] E
inst✝ : FiniteDimensional 𝕜 E
n : ℕ
hT : T.IsSymmetric
hn : finrank 𝕜 E = n
μ : 𝕜
⊢ {i | ↑(hT.eigenvalues hn i) = μ}.card = {i | ↑(hT.unsortedEigenvalues hn i) = μ}.card
Module: Mathlib.Analysis.Matrix.Order

Goal state before:
pp: 𝕜 : Type u_1
n : Type u_2
inst✝¹ : RCLike 𝕜
inst✝ : Fintype n
x : n → 𝕜
B : Matrix n n 𝕜
hA : (star B * B).PosSemidef
h : star (B *ᵥ star (star x)) ⬝ᵥ B *ᵥ x = 0
⊢ Bᴴ *ᵥ B *ᵥ x = 0

Tactic:
star_star,

Goal state after:
𝕜 : Type u_1
n : Type u_2
inst✝¹ : RCLike 𝕜
inst✝ : Fintype n
x : n → 𝕜
B : Matrix n n 𝕜
hA : (star B * B).PosSemidef
h : star (B *ᵥ x) ⬝ᵥ B *ᵥ x = 0
⊢ Bᴴ *ᵥ B *ᵥ x = 0
Module: Mathlib.Analysis.Matrix.Order

Goal state before:
pp: 𝕜 : Type u_1
n : Type u_2
inst✝¹ : RCLike 𝕜
inst✝ : Fintype n
M : Matrix n n 𝕜
hM : M.PosSemidef
x✝¹ x✝ : Matrix n n 𝕜
⊢ (starRingEnd 𝕜) (x✝¹ * M * x✝ᴴ).trace = (x✝ * M * x✝¹ᴴ).trace

Tactic:
by
    simp only [mul_assoc, starRingEnd_apply, ← trace_conjTranspose, conjTranspose_mul,
      conjTranspose_conjTranspose, hM.isHermitian.eq]

Goal state after:
Module: Mathlib.MeasureTheory.Function.LpSpace.ContinuousFunctions

Goal state before:
pp: α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
p : ℝ≥0∞
μ : Measure α
inst✝⁸ : TopologicalSpace α
inst✝⁷ : BorelSpace α
inst✝⁶ : NormedAddCommGroup E
inst✝⁵ : SecondCountableTopologyEither α E
inst✝⁴ : CompactSpace α
inst✝³ : IsFiniteMeasure μ
inst✝² : Fact (1 ≤ p)
𝕜' : Type u_5
inst✝¹ : NormedField 𝕜'
inst✝ : NormedSpace 𝕜' E
f : C(α, E)
this : MemLp (↑↑((toLp p μ 𝕜') f)) p μ
⊢ MemLp (⇑f) p μ

Tactic:
coe_toLp,

Goal state after:
α : Type u_1
E : Type u_2
m0 : MeasurableSpace α
p : ℝ≥0∞
μ : Measure α
inst✝⁸ : TopologicalSpace α
inst✝⁷ : BorelSpace α
inst✝⁶ : NormedAddCommGroup E
inst✝⁵ : SecondCountableTopologyEither α E
inst✝⁴ : CompactSpace α
inst✝³ : IsFiniteMeasure μ
inst✝² : Fact (1 ≤ p)
𝕜' : Type u_5
inst✝¹ : NormedField 𝕜'
inst✝ : NormedSpace 𝕜' E
f : C(α, E)
this : MemLp (↑(toAEEqFun μ f)) p μ
⊢ MemLp (⇑f) p μ
Module: Mathlib.Analysis.Distribution.ContDiffMapSupportedIn

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
F : Type u_3
F' : Type u_4
inst✝¹¹ : NontriviallyNormedField 𝕜
inst✝¹⁰ : NormedAddCommGroup E
inst✝⁹ : NormedSpace ℝ E
inst✝⁸ : NormedAddCommGroup F
inst✝⁷ : NormedSpace ℝ F
inst✝⁶ : NormedSpace 𝕜 F
inst✝⁵ : SMulCommClass ℝ 𝕜 F
inst✝⁴ : NormedAddCommGroup F'
inst✝³ : NormedSpace ℝ F'
inst✝² : NormedSpace 𝕜 F'
inst✝¹ : SMulCommClass ℝ 𝕜 F'
n : ℕ∞
K : Compacts E
inst✝ : LinearMap.CompatibleSMul F F' ℝ 𝕜
i : ℕ
T : F →L[𝕜] F'
f : 𝓓^{n}_{K}(E, F)
T' : F →L[ℝ] F' := ContinuousLinearMap.restrictScalars ℝ T
hi : ↑i ≤ n
⊢ ∀ x ∈ K, ‖iteratedFDeriv ℝ i (⇑((postcompLM T') f)) x‖ ≤ ‖T'‖ * (ContDiffMapSupportedIn.seminorm ℝ E F n K i) f

Tactic:
x

Goal state after:
𝕜 : Type u_1
E : Type u_2
F : Type u_3
F' : Type u_4
inst✝¹¹ : NontriviallyNormedField 𝕜
inst✝¹⁰ : NormedAddCommGroup E
inst✝⁹ : NormedSpace ℝ E
inst✝⁸ : NormedAddCommGroup F
inst✝⁷ : NormedSpace ℝ F
inst✝⁶ : NormedSpace 𝕜 F
inst✝⁵ : SMulCommClass ℝ 𝕜 F
inst✝⁴ : NormedAddCommGroup F'
inst✝³ : NormedSpace ℝ F'
inst✝² : NormedSpace 𝕜 F'
inst✝¹ : SMulCommClass ℝ 𝕜 F'
n : ℕ∞
K : Compacts E
inst✝ : LinearMap.CompatibleSMul F F' ℝ 𝕜
i : ℕ
T : F →L[𝕜] F'
f : 𝓓^{n}_{K}(E, F)
T' : F →L[ℝ] F' := ContinuousLinearMap.restrictScalars ℝ T
hi : ↑i ≤ n
x : E
⊢ x ∈ K → ‖iteratedFDeriv ℝ i (⇑((postcompLM T') f)) x‖ ≤ ‖T'‖ * (ContDiffMapSupportedIn.seminorm ℝ E F n K i) f
Module: Mathlib.Analysis.Distribution.ContDiffMapSupportedIn

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
F : Type u_3
F' : Type u_4
inst✝¹¹ : NontriviallyNormedField 𝕜
inst✝¹⁰ : NormedAddCommGroup E
inst✝⁹ : NormedSpace ℝ E
inst✝⁸ : NormedAddCommGroup F
inst✝⁷ : NormedSpace ℝ F
inst✝⁶ : NormedSpace 𝕜 F
inst✝⁵ : SMulCommClass ℝ 𝕜 F
inst✝⁴ : NormedAddCommGroup F'
inst✝³ : NormedSpace ℝ F'
inst✝² : NormedSpace 𝕜 F'
inst✝¹ : SMulCommClass ℝ 𝕜 F'
n n₁ n₂ k : ℕ∞
K K₁ K₂ : Compacts E
inst✝ : LinearMap.CompatibleSMul F F' ℝ 𝕜
T : F →L[𝕜] F'
⊢ Continuous ⇑(postcompLM T)

Tactic:
refine continuous_of_isBounded (ContDiffMapSupportedIn.withSeminorms ..)
      (ContDiffMapSupportedIn.withSeminorms ..) _ (.of_real fun i ↦ ⟨{i}, ‖T‖, fun f ↦ ?_⟩)

Goal state after:
𝕜 : Type u_1
E : Type u_2
F : Type u_3
F' : Type u_4
inst✝¹¹ : NontriviallyNormedField 𝕜
inst✝¹⁰ : NormedAddCommGroup E
inst✝⁹ : NormedSpace ℝ E
inst✝⁸ : NormedAddCommGroup F
inst✝⁷ : NormedSpace ℝ F
inst✝⁶ : NormedSpace 𝕜 F
inst✝⁵ : SMulCommClass ℝ 𝕜 F
inst✝⁴ : NormedAddCommGroup F'
inst✝³ : NormedSpace ℝ F'
inst✝² : NormedSpace 𝕜 F'
inst✝¹ : SMulCommClass ℝ 𝕜 F'
n n₁ n₂ k : ℕ∞
K K₁ K₂ : Compacts E
inst✝ : LinearMap.CompatibleSMul F F' ℝ 𝕜
T : F →L[𝕜] F'
i : ℕ
f : 𝓓^{n}_{K}(E, F)
⊢ (ContDiffMapSupportedIn.seminorm 𝕜 E F' n K i) ((postcompLM T) f) ≤
    ‖T‖ * ({i}.sup (ContDiffMapSupportedIn.seminorm 𝕜 E F n K)) f
Module: Mathlib.Analysis.Distribution.ContDiffMapSupportedIn

Goal state before:
pp: case pos
𝕜 : Type u_1
E : Type u_2
F : Type u_3
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : NormedAddCommGroup F
inst✝² : NormedSpace ℝ F
inst✝¹ : NormedSpace 𝕜 F
inst✝ : SMulCommClass ℝ 𝕜 F
n k : ℕ∞
K : Compacts E
i : ℕ
f : 𝓓^{n}_{K}(E, F)
hk : k + 1 ≤ n
hi : ↑i ≤ k
⊢ ∀ x ∈ K, ‖iteratedFDeriv ℝ i (⇑((fderivLM 𝕜 n k) f)) x‖ ≤ (ContDiffMapSupportedIn.seminorm 𝕜 E F n K (i + 1)) f

Tactic:
x

Goal state after:
case pos
𝕜 : Type u_1
E : Type u_2
F : Type u_3
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : NormedAddCommGroup E
inst✝⁴ : NormedSpace ℝ E
inst✝³ : NormedAddCommGroup F
inst✝² : NormedSpace ℝ F
inst✝¹ : NormedSpace 𝕜 F
inst✝ : SMulCommClass ℝ 𝕜 F
n k : ℕ∞
K : Compacts E
i : ℕ
f : 𝓓^{n}_{K}(E, F)
hk : k + 1 ≤ n
hi : ↑i ≤ k
x : E
⊢ x ∈ K → ‖iteratedFDeriv ℝ i (⇑((fderivLM 𝕜 n k) f)) x‖ ≤ (ContDiffMapSupportedIn.seminorm 𝕜 E F n K (i + 1)) f
Module: Mathlib.Analysis.Distribution.ContDiffMapSupportedIn

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
inst✝¹⁰ : NontriviallyNormedField 𝕜
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace ℝ E
n : ℕ∞
K : Compacts E
m : MeasurableSpace E
inst✝⁷ : OpensMeasurableSpace E
F₁ : Type u_5
F₂ : Type u_6
F₃ : Type u_7
inst✝⁶ : NormedAddCommGroup F₁
inst✝⁵ : NormedSpace 𝕜 F₁
inst✝⁴ : NormedSpace ℝ F₁
inst✝³ : NormedAddCommGroup F₂
inst✝² : NormedSpace 𝕜 F₂
inst✝¹ : NormedAddCommGroup F₃
inst✝ : NormedSpace 𝕜 F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
μ : Measure E
φ : E → F₂
hφ : IntegrableOn φ (↑K) μ
f : 𝓓^{n}_{K}(E, F₁)
⊢ IntegrableOn (fun x ↦ (B (f x)) (φ x)) (↑K) μ

Tactic:
IntegrableOn,

Goal state after:
𝕜 : Type u_1
E : Type u_2
inst✝¹⁰ : NontriviallyNormedField 𝕜
inst✝⁹ : NormedAddCommGroup E
inst✝⁸ : NormedSpace ℝ E
n : ℕ∞
K : Compacts E
m : MeasurableSpace E
inst✝⁷ : OpensMeasurableSpace E
F₁ : Type u_5
F₂ : Type u_6
F₃ : Type u_7
inst✝⁶ : NormedAddCommGroup F₁
inst✝⁵ : NormedSpace 𝕜 F₁
inst✝⁴ : NormedSpace ℝ F₁
inst✝³ : NormedAddCommGroup F₂
inst✝² : NormedSpace 𝕜 F₂
inst✝¹ : NormedAddCommGroup F₃
inst✝ : NormedSpace 𝕜 F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
μ : Measure E
φ : E → F₂
hφ : Integrable φ (μ.restrict ↑K)
f : 𝓓^{n}_{K}(E, F₁)
⊢ Integrable (fun x ↦ (B (f x)) (φ x)) (μ.restrict ↑K)
Module: Mathlib.Analysis.Distribution.ContDiffMapSupportedIn

Goal state before:
pp: 𝕜 : Type u_1
E : Type u_2
F : Type u_3
F' : Type u_4
inst✝²⁰ : NontriviallyNormedField 𝕜
inst✝¹⁹ : NormedAddCommGroup E
inst✝¹⁸ : NormedSpace ℝ E
inst✝¹⁷ : NormedAddCommGroup F
inst✝¹⁶ : NormedSpace ℝ F
inst✝¹⁵ : NormedSpace 𝕜 F
inst✝¹⁴ : SMulCommClass ℝ 𝕜 F
inst✝¹³ : NormedAddCommGroup F'
inst✝¹² : NormedSpace ℝ F'
inst✝¹¹ : NormedSpace 𝕜 F'
inst✝¹⁰ : SMulCommClass ℝ 𝕜 F'
n n₁ n₂ k✝ : ℕ∞
K K₁ K₂ : Compacts E
F₁ : Type u_5
F₂ : Type u_6
F₃ : Type u_7
G : Type u_8
inst✝⁹ : NormedAlgebra ℝ 𝕜
inst✝⁸ : NormedAddCommGroup F₁
inst✝⁷ : NormedSpace 𝕜 F₁
inst✝⁶ : NormedSpace ℝ F₁
inst✝⁵ : NormedAddCommGroup F₂
inst✝⁴ : NormedSpace 𝕜 F₂
inst✝³ : NormedSpace ℝ F₂
inst✝² : NormedAddCommGroup F₃
inst✝¹ : NormedSpace 𝕜 F₃
inst✝ : NormedSpace ℝ F₃
B : F₁ →L[𝕜] F₂ →L[𝕜] F₃
g : E → F₂
hg : ContDiff ℝ (↑n) g
k : ℕ
hk : ↑k ≤ n
hcont :
  Continuous[PseudoMetricSpace.toUniformSpace.toTopologicalSpace, _] fun x ↦
    (Finset.range (k + 1)).sup' ⋯ fun i ↦ ‖iteratedFDeriv ℝ i g x‖
C₀ : ℝ
hC₀ : ∀ x ∈ ↑K, ‖(Finset.range (k + 1)).sup' ⋯ fun i ↦ ‖iteratedFDeriv ℝ i g x‖‖ ≤ C₀
hgC₀ : ∀ i ≤ k, ∀ x ∈ K, ‖iteratedFDeriv ℝ i g x‖ ≤ ‖C₀‖
φ : 𝓓^{n}_{K}(E, F₁)
x : E
hx : x ∈ K
⊢ ‖iteratedFDeriv ℝ k (fun y ↦ (B (φ y)) (g y)) x‖ ≤
    ‖B‖ * ∑ i ∈ Finset.range (k + 1), ↑(k.choose i) * ‖iteratedFDeriv ℝ i (⇑φ) x‖ * ‖iteratedFDeriv ℝ (k - i) g x‖

Tactic:
simpa using (B.bilinearRestrictScalars ℝ).norm_iteratedFDeriv_le_of_bilinear
            φ.contDiff hg x (mod_cast hk)

Goal state after:
Module: Mathlib.Analysis.Normed.Module.Bases

Goal state before:
pp: case hle
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
X : Type u_2
inst✝¹ : NormedAddCommGroup X
inst✝ : NormedSpace 𝕜 X
D : RankOneDecomposition 𝕜 X
n : ℕ
x : X
S : X →ₗ[𝕜] X := ⋯
hrank : Module.finrank 𝕜 ↥S.range = 1
this : FiniteDimensional 𝕜 ↥S.range
⊢ 𝕜 ∙ D.e n ≤ S.range

pp: case hd
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
X : Type u_2
inst✝¹ : NormedAddCommGroup X
inst✝ : NormedSpace 𝕜 X
D : RankOneDecomposition 𝕜 X
n : ℕ
x : X
S : X →ₗ[𝕜] X := ⋯
hrank : Module.finrank 𝕜 ↥S.range = 1
this : FiniteDimensional 𝕜 ↥S.range
⊢ Module.finrank 𝕜 ↥(𝕜 ∙ D.e n) = Module.finrank 𝕜 ↥S.range

Tactic:
· exact (Submodule.span_singleton_le_iff_mem _ _).mpr (D.e_mem_range n)

Goal state after:
case hd
𝕜 : Type u_1
inst✝² : NontriviallyNormedField 𝕜
X : Type u_2
inst✝¹ : NormedAddCommGroup X
inst✝ : NormedSpace 𝕜 X
D : RankOneDecomposition 𝕜 X
n : ℕ
x : X
S : X →ₗ[𝕜] X := ⋯
hrank : Module.finrank 𝕜 ↥S.range = 1
this : FiniteDimensional 𝕜 ↥S.range
⊢ Module.finrank 𝕜 ↥(𝕜 ∙ D.e n) = Module.finrank 𝕜 ↥S.range
Module: Mathlib.Analysis.InnerProductSpace.l2Space

Goal state before:
pp: 𝕜 : Type u_2
inst✝³ : RCLike 𝕜
E : Type u_3
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
inst✝ : CompleteSpace E
K : Submodule 𝕜 E
hK : CompleteSpace ↥K
this : ∀ (b : Bool), CompleteSpace ↥(bif b then K else Kᗮ)
⊢ ⊤ ≤ ⨆ i, bif i then K else Kᗮ

Tactic:
rw [iSup_bool_eq, cond, cond]

Goal state after:
𝕜 : Type u_2
inst✝³ : RCLike 𝕜
E : Type u_3
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
inst✝ : CompleteSpace E
K : Submodule 𝕜 E
hK : CompleteSpace ↥K
this : ∀ (b : Bool), CompleteSpace ↥(bif b then K else Kᗮ)
⊢ ⊤ ≤ K ⊔ Kᗮ
Module: Mathlib.Analysis.InnerProductSpace.l2Space

Goal state before:
pp: ι : Type u_1
𝕜 : Type u_2
inst✝² : RCLike 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : InnerProductSpace 𝕜 E
b : HilbertBasis ι 𝕜 E
f : ↥(lp (fun x ↦ 𝕜) 2)
i : ι
this : NormedSpace 𝕜 ↥(lp (fun _i ↦ 𝕜) 2) := inferInstance
⊢ b.repr (↑f i • b i) = b.repr (↑b.repr.symm ((fun i ↦ lp.single 2 i (↑f i)) i))

Tactic:
have : lp.single (E := (fun _ : ι => 𝕜)) 2 i (f i * 1) = f i • lp.single 2 i 1 :=
    lp.single_smul (E := (fun _ : ι => 𝕜)) 2 i (f i) (1 : 𝕜)

Goal state after:
ι : Type u_1
𝕜 : Type u_2
inst✝² : RCLike 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : InnerProductSpace 𝕜 E
b : HilbertBasis ι 𝕜 E
f : ↥(lp (fun x ↦ 𝕜) 2)
i : ι
this✝ : NormedSpace 𝕜 ↥(lp (fun _i ↦ 𝕜) 2) := inferInstance
this : lp.single 2 i (↑f i * 1) = ↑f i • lp.single 2 i 1
⊢ b.repr (↑f i • b i) = b.repr (↑b.repr.symm ((fun i ↦ lp.single 2 i (↑f i)) i))
Module: Mathlib.Analysis.InnerProductSpace.l2Space

Goal state before:
pp: ι : Type u_1
𝕜 : Type u_2
inst✝² : RCLike 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : InnerProductSpace 𝕜 E
b : HilbertBasis ι 𝕜 E
⊢ ⊤ ≤ (span 𝕜 (Set.range ⇑b)).topologicalClosure

Tactic:
rintro x -

Goal state after:
ι : Type u_1
𝕜 : Type u_2
inst✝² : RCLike 𝕜
E : Type u_3
inst✝¹ : NormedAddCommGroup E
inst✝ : InnerProductSpace 𝕜 E
b : HilbertBasis ι 𝕜 E
x : E
⊢ x ∈ (span 𝕜 (Set.range ⇑b)).topologicalClosure