mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.Analysis.LocallyConvex.Barrelled

Goal state before:
pp: ι : Type u_2
κ : Type u_3
𝕜₁ : Type u_4
𝕜₂ : Type u_5
E : Type u_6
F : Type u_7
inst✝¹² : NontriviallyNormedField 𝕜₁
inst✝¹¹ : NontriviallyNormedField 𝕜₂
σ₁₂ : 𝕜₁ →+* 𝕜₂
inst✝¹⁰ : RingHomIsometric σ₁₂
inst✝⁹ : AddCommGroup E
inst✝⁸ : AddCommGroup F
inst✝⁷ : Module 𝕜₁ E
inst✝⁶ : Module 𝕜₂ F
inst✝⁵ : UniformSpace E
inst✝⁴ : UniformSpace F
inst✝³ : IsUniformAddGroup E
inst✝² : IsUniformAddGroup F
inst✝¹ : ContinuousSMul 𝕜₁ E
inst✝ : BarrelledSpace 𝕜₁ E
𝓕 : ι → E →SL[σ₁₂] F
q : SeminormFamily 𝕜₂ F κ
hq : WithSeminorms q
H : ∀ (k : κ) (x : E), BddAbove (range fun i ↦ (q k) ((𝓕 i) x))
⊢ UniformEquicontinuous (DFunLike.coe ∘ 𝓕)

Tactic:
refine (hq.uniformEquicontinuous_iff_bddAbove_and_continuous_iSup (toLinearMap ∘ 𝓕)).mpr ?_

Goal state after:
ι : Type u_2
κ : Type u_3
𝕜₁ : Type u_4
𝕜₂ : Type u_5
E : Type u_6
F : Type u_7
inst✝¹² : NontriviallyNormedField 𝕜₁
inst✝¹¹ : NontriviallyNormedField 𝕜₂
σ₁₂ : 𝕜₁ →+* 𝕜₂
inst✝¹⁰ : RingHomIsometric σ₁₂
inst✝⁹ : AddCommGroup E
inst✝⁸ : AddCommGroup F
inst✝⁷ : Module 𝕜₁ E
inst✝⁶ : Module 𝕜₂ F
inst✝⁵ : UniformSpace E
inst✝⁴ : UniformSpace F
inst✝³ : IsUniformAddGroup E
inst✝² : IsUniformAddGroup F
inst✝¹ : ContinuousSMul 𝕜₁ E
inst✝ : BarrelledSpace 𝕜₁ E
𝓕 : ι → E →SL[σ₁₂] F
q : SeminormFamily 𝕜₂ F κ
hq : WithSeminorms q
H : ∀ (k : κ) (x : E), BddAbove (range fun i ↦ (q k) ((𝓕 i) x))
⊢ ∀ (i : κ),
    BddAbove (range fun k ↦ (q i).comp ((toLinearMap ∘ 𝓕) k)) ∧
      Continuous[inst✝⁵.toTopologicalSpace, _] (⨆ k, ⇑((q i).comp ((toLinearMap ∘ 𝓕) k)))
Module: Mathlib.Analysis.LocallyConvex.Barrelled

Goal state before:
pp: ι : Type u_2
𝕜₁ : Type u_4
𝕜₂ : Type u_5
E : Type u_6
F : Type u_7
inst✝¹³ : NontriviallyNormedField 𝕜₁
inst✝¹² : NontriviallyNormedField 𝕜₂
σ₁₂ : 𝕜₁ →+* 𝕜₂
inst✝¹¹ : RingHomIsometric σ₁₂
inst✝¹⁰ : AddCommGroup E
inst✝⁹ : AddCommGroup F
inst✝⁸ : Module 𝕜₁ E
inst✝⁷ : Module 𝕜₂ F
inst✝⁶ : UniformSpace E
inst✝⁵ : UniformSpace F
inst✝⁴ : IsUniformAddGroup E
inst✝³ : IsUniformAddGroup F
inst✝² : ContinuousSMul 𝕜₁ E
inst✝¹ : BarrelledSpace 𝕜₁ E
𝓕 : ι → E →SL[σ₁₂] F
inst✝ : PolynormableSpace 𝕜₂ F
H : ∀ (x : E), IsVonNBounded 𝕜₂ (range fun i ↦ (𝓕 i) x)
⊢ UniformEquicontinuous (DFunLike.coe ∘ 𝓕)

Tactic:
by
  have hp := PolynormableSpace.withSeminorms 𝕜₂ F
  refine hp.banach_steinhaus ?_
  simp_rw [hp.isVonNBounded_iff_seminorm_bddAbove, ← range_comp] at H
  exact fun q x ↦ H x q

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.GelfandDuality

Goal state before:
pp: A : Type u_1
inst✝³ : NormedCommRing A
inst✝² : NormedAlgebra ℂ A
inst✝¹ : CompleteSpace A
I : Ideal A
inst✝ : I.IsMaximal
a : A
ha : a ∈ I
⊢ (CharacterSpace.equivAlgHom.symm ((↑(NormedRing.algEquivComplexOfComplete ⋯).symm).comp (Quotient.mkₐ ℂ I))) a = 0

Tactic:
simp only [CharacterSpace.equivAlgHom_symm_coe, AlgHom.coe_comp, AlgEquiv.coe_toAlgHom,
    Quotient.mkₐ_eq_mk, Function.comp_apply, NormedRing.algEquivComplexOfComplete_symm_apply]

Goal state after:
A : Type u_1
inst✝³ : NormedCommRing A
inst✝² : NormedAlgebra ℂ A
inst✝¹ : CompleteSpace A
I : Ideal A
inst✝ : I.IsMaximal
a : A
ha : a ∈ I
⊢ ⋯.some = 0
Module: Mathlib.Analysis.SpecialFunctions.ContinuousFunctionalCalculus.PosPart.Basic

Goal state before:
pp: case pos
A : Type u_1
inst✝⁶ : NonUnitalRing A
inst✝⁵ : Module ℝ A
inst✝⁴ : SMulCommClass ℝ A A
inst✝³ : IsScalarTower ℝ A A
inst✝² : StarRing A
inst✝¹ : TopologicalSpace A
inst✝ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
a : A
ha : IsSelfAdjoint a
⊢ cfcₙ (fun x ↦ x⁻) a * cfcₙ (fun x ↦ x⁺) a = 0

Tactic:
rw [← cfcₙ_mul _ _, ← cfcₙ_zero ℝ a]
    refine cfcₙ_congr (fun x _ ↦ ?_)
    simp only [_root_.posPart_def, _root_.negPart_def]
    simpa using le_total 0 x

Goal state after:
Module: Mathlib.Topology.UrysohnsLemma

Goal state before:
pp: case h.refine_1
X : Type u_1
inst✝¹ : TopologicalSpace X
inst✝ : R1Space X
s t : Set X
hs : IsOpen[inst✝¹] s
hscp : IsCompact (closure[inst✝¹] sᶜᶜ)
ht : IsClosed[inst✝¹] t
hst : t ⊆ s
u v : Set X
huIsOpen : IsOpen[inst✝¹] u
hvIsOpen : IsOpen[inst✝¹] v
hscompl_subset_u : sᶜ ⊆ u
ht_subset_v : t ⊆ v
hDisjointuv : u ⊆ vᶜ
huvc : closure[inst✝¹] u ⊆ vᶜ
P : Set X → Set X → Prop := fun C x ↦ sᶜ ⊆ C
c : Urysohns.CU P := { C := closure[inst✝¹] u, U := tᶜ, P_C_U := ⋯, closed_C := ⋯, open_U := ⋯, subset := ⋯, hP := ⋯ }
⊢ tsupport c.lim ⊆ s

pp: case h.refine_2
X : Type u_1
inst✝¹ : TopologicalSpace X
inst✝ : R1Space X
s t : Set X
hs : IsOpen[inst✝¹] s
hscp : IsCompact (closure[inst✝¹] sᶜᶜ)
ht : IsClosed[inst✝¹] t
hst : t ⊆ s
u v : Set X
huIsOpen : IsOpen[inst✝¹] u
hvIsOpen : IsOpen[inst✝¹] v
hscompl_subset_u : sᶜ ⊆ u
ht_subset_v : t ⊆ v
hDisjointuv : u ⊆ vᶜ
huvc : closure[inst✝¹] u ⊆ vᶜ
P : Set X → Set X → Prop := fun C x ↦ sᶜ ⊆ C
c : Urysohns.CU P := { C := closure[inst✝¹] u, U := tᶜ, P_C_U := ⋯, closed_C := ⋯, open_U := ⋯, subset := ⋯, hP := ⋯ }
⊢ EqOn c.lim 1 t

Tactic:
· apply Subset.trans _ (compl_subset_comm.mp hscompl_subset_u)
    rw [← IsClosed.closure_eq (isClosed_compl_iff.mpr huIsOpen)]
    apply closure_mono
    exact Disjoint.subset_compl_right (disjoint_of_subset_right subset_closure
      (Disjoint.symm (Urysohns.CU.disjoint_C_support_lim c)))

Goal state after:
case h.refine_2
X : Type u_1
inst✝¹ : TopologicalSpace X
inst✝ : R1Space X
s t : Set X
hs : IsOpen[inst✝¹] s
hscp : IsCompact (closure[inst✝¹] sᶜᶜ)
ht : IsClosed[inst✝¹] t
hst : t ⊆ s
u v : Set X
huIsOpen : IsOpen[inst✝¹] u
hvIsOpen : IsOpen[inst✝¹] v
hscompl_subset_u : sᶜ ⊆ u
ht_subset_v : t ⊆ v
hDisjointuv : u ⊆ vᶜ
huvc : closure[inst✝¹] u ⊆ vᶜ
P : Set X → Set X → Prop := fun C x ↦ sᶜ ⊆ C
c : Urysohns.CU P := { C := closure[inst✝¹] u, U := tᶜ, P_C_U := ⋯, closed_C := ⋯, open_U := ⋯, subset := ⋯, hP := ⋯ }
⊢ EqOn c.lim 1 t
Module: Mathlib.Analysis.SpecialFunctions.ContinuousFunctionalCalculus.Rpow.Isometric

Goal state before:
pp: A : Type u_1
inst✝⁸ : NormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : NormedAlgebra ℝ A
inst✝⁵ : PartialOrder A
inst✝⁴ : StarOrderedRing A
inst✝³ : NonnegSpectrumClass ℝ A
inst✝² : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝¹ : ContinuousStar A
inst✝ : CompleteSpace A
r : ℝ
⊢ {0}ᶜ ∈ nhdsSet (⋃ x ∈ {a | IsStrictlyPositive a}, spectrum ℝ≥0 (id x))

Tactic:
simp_rw [nhdsSet_iUnion, Filter.mem_iSup, isOpen_compl_singleton.mem_nhdsSet]

Goal state after:
A : Type u_1
inst✝⁸ : NormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : NormedAlgebra ℝ A
inst✝⁵ : PartialOrder A
inst✝⁴ : StarOrderedRing A
inst✝³ : NonnegSpectrumClass ℝ A
inst✝² : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝¹ : ContinuousStar A
inst✝ : CompleteSpace A
r : ℝ
⊢ ∀ i ∈ {a | IsStrictlyPositive a}, spectrum ℝ≥0 (id i) ⊆ {0}ᶜ
Module: Mathlib.Analysis.SpecialFunctions.ContinuousFunctionalCalculus.Rpow.Isometric

Goal state before:
pp: A : Type u_1
inst✝⁹ : PartialOrder A
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CStarRing A
inst✝⁵ : NormedSpace ℝ A
inst✝⁴ : SMulCommClass ℝ A A
inst✝³ : IsScalarTower ℝ A A
inst✝² : StarOrderedRing A
inst✝¹ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a b : A
ha : 0 ≤ a
⊢ ‖star b * a * b‖ = ‖star b * star (sqrt a) * (sqrt a * b)‖

Tactic:
(CFC.sqrt_nonneg a).star_eq,

Goal state after:
A : Type u_1
inst✝⁹ : PartialOrder A
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CStarRing A
inst✝⁵ : NormedSpace ℝ A
inst✝⁴ : SMulCommClass ℝ A A
inst✝³ : IsScalarTower ℝ A A
inst✝² : StarOrderedRing A
inst✝¹ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a b : A
ha : 0 ≤ a
⊢ ‖star b * a * b‖ = ‖star b * sqrt a * (sqrt a * b)‖
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Continuity

Goal state before:
pp: case frequently
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁶ : RCLike 𝕜
inst✝⁵ : NormedRing A
inst✝⁴ : StarRing A
inst✝³ : NormedAlgebra 𝕜 A
inst✝² : IsometricContinuousFunctionalCalculus 𝕜 A p
inst✝¹ : ContinuousStar A
inst✝ : TopologicalSpace X
s : Set 𝕜
hs : IsCompact s
a : X → A
ha_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] a
ha : ∀ (x : X), spectrum 𝕜 (a x) ⊆ s
ha' : ∀ (x : X), p (a x)
this : CompactSpace ↑s
f : C(↑s, 𝕜)
hf :
  ∃ᶠ (g : C(↑s, 𝕜)) in 𝓝 f,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcHomSuperset ⋯ ⋯) g
ε : ℝ
hε : 0 < ε
g : C(↑s, 𝕜)
hg : g ∈ Metric.closedBall f ε
g_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcHomSuperset ⋯ ⋯) g
⊢ ∃ F,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] F ∧
      ∀ (y : X), ‖(cfcHomSuperset ⋯ ⋯) f - F y‖ ≤ ε

Tactic:
simp only [Metric.mem_closedBall, dist_comm g, dist_eq_norm] at hg

Goal state after:
case frequently
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁶ : RCLike 𝕜
inst✝⁵ : NormedRing A
inst✝⁴ : StarRing A
inst✝³ : NormedAlgebra 𝕜 A
inst✝² : IsometricContinuousFunctionalCalculus 𝕜 A p
inst✝¹ : ContinuousStar A
inst✝ : TopologicalSpace X
s : Set 𝕜
hs : IsCompact s
a : X → A
ha_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] a
ha : ∀ (x : X), spectrum 𝕜 (a x) ⊆ s
ha' : ∀ (x : X), p (a x)
this : CompactSpace ↑s
f : C(↑s, 𝕜)
hf :
  ∃ᶠ (g : C(↑s, 𝕜)) in 𝓝 f,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcHomSuperset ⋯ ⋯) g
ε : ℝ
hε : 0 < ε
g : C(↑s, 𝕜)
g_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcHomSuperset ⋯ ⋯) g
hg : ‖f - g‖ ≤ ε
⊢ ∃ F,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] F ∧
      ∀ (y : X), ‖(cfcHomSuperset ⋯ ⋯) f - F y‖ ≤ ε
Module: Mathlib.Analysis.CStarAlgebra.Module.Defs

Goal state before:
pp: A : Type u_1
E : Type u_2
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : StarRing A
inst✝⁸ : AddCommGroup E
inst✝⁷ : Module ℂ A
inst✝⁶ : Module ℂ E
inst✝⁵ : PartialOrder A
inst✝⁴ : SMul A E
inst✝³ : Norm A
inst✝² : Norm E
inst✝¹ : CStarModule A E
inst✝ : StarModule ℂ A
z : ℝ
x y : E
h₁ : z •> x = ↑z •> x
⊢ ⟪z •> x, y⟫ = z •> ⟪x, y⟫

Tactic:
h₁,

Goal state after:
A : Type u_1
E : Type u_2
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : StarRing A
inst✝⁸ : AddCommGroup E
inst✝⁷ : Module ℂ A
inst✝⁶ : Module ℂ E
inst✝⁵ : PartialOrder A
inst✝⁴ : SMul A E
inst✝³ : Norm A
inst✝² : Norm E
inst✝¹ : CStarModule A E
inst✝ : StarModule ℂ A
z : ℝ
x y : E
h₁ : z •> x = ↑z •> x
⊢ ⟪↑z •> x, y⟫ = z •> ⟪x, y⟫
Module: Mathlib.Analysis.CStarAlgebra.Module.Defs

Goal state before:
pp: A : Type u_1
E : Type u_2
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : StarRing A
inst✝⁸ : AddCommGroup E
inst✝⁷ : Module ℂ A
inst✝⁶ : Module ℂ E
inst✝⁵ : PartialOrder A
inst✝⁴ : SMul A E
inst✝³ : Norm A
inst✝² : Norm E
inst✝¹ : CStarModule A E
inst✝ : StarModule ℂ A
z : ℝ
x y : E
h₁ : z •> y = ↑z •> y
⊢ ⟪x, z •> y⟫ = z •> ⟪x, y⟫

Tactic:
h₁,

Goal state after:
A : Type u_1
E : Type u_2
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : StarRing A
inst✝⁸ : AddCommGroup E
inst✝⁷ : Module ℂ A
inst✝⁶ : Module ℂ E
inst✝⁵ : PartialOrder A
inst✝⁴ : SMul A E
inst✝³ : Norm A
inst✝² : Norm E
inst✝¹ : CStarModule A E
inst✝ : StarModule ℂ A
z : ℝ
x y : E
h₁ : z •> y = ↑z •> y
⊢ ⟪x, ↑z •> y⟫ = z •> ⟪x, y⟫
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Order

Goal state before:
pp: case refine_1
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
⊢ Continuous star

pp: case refine_2
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
⊢ Continuous fun a ↦ a

pp: case refine_3
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
⊢ Continuous fun a ↦ ‖(algebraMap ℝ (Unitization ℂ A)) ↑‖a‖₊ - a‖₊

pp: case refine_4
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
⊢ Continuous nnnorm

Tactic:
all_goals fun_prop

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Order

Goal state before:
pp: case pos
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ → ℝ
s : Set A
hf : ConvexOn ℝ (inr '' s) (cfc f)
inrl : A →ₗ[ℝ] Unitization ℂ A := inrHom ℝ ℂ A
hf₀ : f 0 = 0
h₁ : inr ∘ cfcₙ f = fun x ↦ ↑(cfcₙ f x)
h₂ : (fun x ↦ ↑(cfcₙ f x)) = fun x ↦ cfc f ↑x
⊢ ConvexOn ℝ s (inr ∘ cfcₙ f)

Tactic:
h₁,

Goal state after:
case pos
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ → ℝ
s : Set A
hf : ConvexOn ℝ (inr '' s) (cfc f)
inrl : A →ₗ[ℝ] Unitization ℂ A := inrHom ℝ ℂ A
hf₀ : f 0 = 0
h₁ : inr ∘ cfcₙ f = fun x ↦ ↑(cfcₙ f x)
h₂ : (fun x ↦ ↑(cfcₙ f x)) = fun x ↦ cfc f ↑x
⊢ ConvexOn ℝ s fun x ↦ ↑(cfcₙ f x)
Module: Mathlib.Analysis.CStarAlgebra.ApproximateUnit

Goal state before:
pp: A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ≥0 → ℝ≥0 := fun x ↦ 1 - (1 + x)⁻¹
g : ℝ≥0 → ℝ≥0 := fun x ↦ x * (1 - x)⁻¹
a b : A
ha₁ : 0 ≤ a
ha₂ : ‖a‖ < 1
⊢ cfcₙ (f ∘ g) a = cfcₙ f (cfcₙ g a)

Tactic:
cfcₙ_comp f g a ?_ (by simp [f, tsub_self]) ?_ (by simp [g]) ha₁

Goal state after:
A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ≥0 → ℝ≥0 := fun x ↦ 1 - (1 + x)⁻¹
g : ℝ≥0 → ℝ≥0 := fun x ↦ x * (1 - x)⁻¹
a b : A
ha₁ : 0 ≤ a
ha₂ : ‖a‖ < 1
⊢ cfcₙ f (cfcₙ g a) = cfcₙ f (cfcₙ g a)

A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ≥0 → ℝ≥0 := fun x ↦ 1 - (1 + x)⁻¹
g : ℝ≥0 → ℝ≥0 := fun x ↦ x * (1 - x)⁻¹
a b : A
ha₁ : 0 ≤ a
ha₂ : ‖a‖ < 1
⊢ ContinuousOn f (g '' σₙ ℝ≥0 a)

A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
f : ℝ≥0 → ℝ≥0 := fun x ↦ 1 - (1 + x)⁻¹
g : ℝ≥0 → ℝ≥0 := fun x ↦ x * (1 - x)⁻¹
a b : A
ha₁ : 0 ≤ a
ha₂ : ‖a‖ < 1
⊢ ContinuousOn g (σₙ ℝ≥0 a)
Module: Mathlib.Analysis.CStarAlgebra.ApproximateUnit

Goal state before:
pp: A : Type u_1
inst✝² : NonUnitalCStarAlgebra A
inst✝¹ : PartialOrder A
inst✝ : StarOrderedRing A
l : Filter A
h : ∀ (m : A), 0 ≤ m → ‖m‖ < 1 → Tendsto (fun x ↦ x * m) l (𝓝 m)
n : ℕ
c : Fin n → ℂ
x : Fin n → ↑({x | 0 ≤ x} ∩ ball 0 1)
this : ∑ i, c i • ↑(x i) ∈ span ℂ ({x | 0 ≤ x} ∩ ball 0 1)
i : Fin n
x✝ : i ∈ Finset.univ
⊢ ‖↑(x i)‖ < 1

Tactic:
simpa using (x i).2.2

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Continuity

Goal state before:
pp: case frequently
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁸ : RCLike 𝕜
inst✝⁷ : NonUnitalNormedRing A
inst✝⁶ : StarRing A
inst✝⁵ : NormedSpace 𝕜 A
inst✝⁴ : IsScalarTower 𝕜 A A
inst✝³ : SMulCommClass 𝕜 A A
inst✝² : ContinuousStar A
inst✝¹ : NonUnitalIsometricContinuousFunctionalCalculus 𝕜 A p
inst✝ : TopologicalSpace X
s : Set 𝕜
hs : IsCompact s
hs0 : Fact (0 ∈ s)
a : X → A
ha_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] a
ha : ∀ (x : X), quasispectrum 𝕜 (a x) ⊆ s
ha' : ∀ (x : X), p (a x)
this : CompactSpace ↑s
f : C(↑s, 𝕜)₀
hf :
  ∃ᶠ (g : C(↑s, 𝕜)₀) in 𝓝 f,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcₙHomSuperset ⋯ ⋯) g
ε : ℝ
hε : 0 < ε
g : C(↑s, 𝕜)₀
hg : g ∈ Metric.closedBall f ε
g_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcₙHomSuperset ⋯ ⋯) g
⊢ ∃ F,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] F ∧
      ∀ (y : X), ‖(cfcₙHomSuperset ⋯ ⋯) f - F y‖ ≤ ε

Tactic:
simp only [Metric.mem_closedBall, dist_comm g, dist_eq_norm] at hg

Goal state after:
case frequently
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁸ : RCLike 𝕜
inst✝⁷ : NonUnitalNormedRing A
inst✝⁶ : StarRing A
inst✝⁵ : NormedSpace 𝕜 A
inst✝⁴ : IsScalarTower 𝕜 A A
inst✝³ : SMulCommClass 𝕜 A A
inst✝² : ContinuousStar A
inst✝¹ : NonUnitalIsometricContinuousFunctionalCalculus 𝕜 A p
inst✝ : TopologicalSpace X
s : Set 𝕜
hs : IsCompact s
hs0 : Fact (0 ∈ s)
a : X → A
ha_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] a
ha : ∀ (x : X), quasispectrum 𝕜 (a x) ⊆ s
ha' : ∀ (x : X), p (a x)
this : CompactSpace ↑s
f : C(↑s, 𝕜)₀
hf :
  ∃ᶠ (g : C(↑s, 𝕜)₀) in 𝓝 f,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcₙHomSuperset ⋯ ⋯) g
ε : ℝ
hε : 0 < ε
g : C(↑s, 𝕜)₀
g_cont : Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] fun x ↦ (cfcₙHomSuperset ⋯ ⋯) g
hg : ‖f - g‖ ≤ ε
⊢ ∃ F,
    Continuous[inst✝, PseudoMetricSpace.toUniformSpace.toTopologicalSpace] F ∧
      ∀ (y : X), ‖(cfcₙHomSuperset ⋯ ⋯) f - F y‖ ≤ ε
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Continuity

Goal state before:
pp: A : Type u_2
inst✝¹¹ : NonUnitalNormedRing A
inst✝¹⁰ : StarRing A
inst✝⁹ : NormedSpace ℝ A
inst✝⁸ : IsScalarTower ℝ A A
inst✝⁷ : SMulCommClass ℝ A A
inst✝⁶ : ContinuousStar A
inst✝⁵ : NonUnitalIsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝⁴ : PartialOrder A
inst✝³ : StarOrderedRing A
inst✝² : NonnegSpectrumClass ℝ A
inst✝¹ : T2Space A
inst✝ : IsSemitopologicalRing A
s : Set ℝ≥0
hs : IsCompact s
f : ℝ≥0 → ℝ≥0
hf : ContinuousOn f s
hf0 : f 0 = 0
⊢ ContinuousOn (fun x ↦ cfcₙ f x) {a | 0 ≤ a ∧ quasispectrum ℝ≥0 a ⊆ s}

Tactic:
have : {a : A | 0 ≤ a ∧ quasispectrum ℝ≥0 a ⊆ s}.EqOn (cfcₙ f)
      (cfcₙ (fun x : ℝ ↦ f x.toNNReal)) :=
    fun a ha ↦ cfcₙ_nnreal_eq_real _ _ ha.1
  refine ContinuousOn.congr ?_ this
  replace hf : ContinuousOn (fun x ↦ f x.toNNReal : ℝ → ℝ) (NNReal.toReal '' s) := by
    apply hf.ofReal_map_toNNReal
    rw [Set.mapsTo_image_iff]
    intro x hx
    simpa
  refine continuousOn_cfcₙ A (hs.image NNReal.continuous_coe) _ hf |>.mono fun a ha ↦ ?_
  simp only [Set.mem_ofPred_eq, nonneg_iff_isSelfAdjoint_and_quasispectrumRestricts] at ha ⊢
  refine ⟨ha.1.1, ?_⟩
  rw [← ha.1.2.algebraMap_image]
  exact Set.image_mono ha.2

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Integral

Goal state before:
pp: X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁷ : RCLike 𝕜
inst✝⁶ : MeasurableSpace X
μ : Measure X
inst✝⁵ : NormedRing A
inst✝⁴ : StarRing A
inst✝³ : NormedAlgebra 𝕜 A
inst✝² : ContinuousFunctionalCalculus 𝕜 A p
inst✝¹ : CompleteSpace A
inst✝ : NormedSpace ℝ A
a : A
f : X → C(↑(spectrum 𝕜 a), 𝕜)
hf₁ : Integrable f μ
ha : p a
⊢ ∫ (x : X), (cfcL ha) (f x) ∂μ = (cfcL ha) (∫ (x : X), f x ∂μ)

Tactic:
by
  rw [ContinuousLinearMap.integral_comp_comm _ hf₁]

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Integral

Goal state before:
pp: X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝¹⁰ : RCLike 𝕜
inst✝⁹ : MeasurableSpace X
μ : Measure X
inst✝⁸ : NormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : NormedAlgebra 𝕜 A
inst✝⁵ : ContinuousFunctionalCalculus 𝕜 A p
inst✝⁴ : CompleteSpace A
inst✝³ : NormedSpace ℝ A
inst✝² : TopologicalSpace X
inst✝¹ : OpensMeasurableSpace X
f : X → 𝕜 → 𝕜
bound : X → ℝ
a : A
inst✝ : SecondCountableTopologyEither X C(↑(spectrum 𝕜 a), 𝕜)
hf : ContinuousOn (Function.uncurry f) (univ ×ˢ spectrum 𝕜 a)
bound_ge : ∀ᵐ (x : X) ∂μ, ∀ z ∈ spectrum 𝕜 a, ‖f x z‖ ≤ bound x
bound_int : HasFiniteIntegral bound μ
ha : p a
⊢ cfc (fun r ↦ ∫ (x : X), f x r ∂μ) a = ∫ (x : X), cfc (f x) a ∂μ

Tactic:
have : ∀ᵐ (x : X) ∂μ, ContinuousOn (f x) (spectrum 𝕜 a) := .of_forall fun x ↦
    hf.comp (Continuous.prodMk_right x).continuousOn fun _ hz ↦ ⟨Set.mem_univ _, hz⟩
  refine cfc_integral' _ _ this ⟨?_, ?_⟩ ha
  · exact aeStronglyMeasurable_mkD_restrict_of_uncurry _ _ hf
  · exact hasFiniteIntegral_mkD_restrict_of_bound f _ this bound bound_int bound_ge

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Integral

Goal state before:
pp: X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝⁹ : RCLike 𝕜
inst✝⁸ : MeasurableSpace X
μ : Measure X
inst✝⁷ : NonUnitalNormedRing A
inst✝⁶ : StarRing A
inst✝⁵ : NormedSpace 𝕜 A
inst✝⁴ : IsScalarTower 𝕜 A A
inst✝³ : SMulCommClass 𝕜 A A
inst✝² : NonUnitalContinuousFunctionalCalculus 𝕜 A p
inst✝¹ : CompleteSpace A
inst✝ : NormedSpace ℝ A
a : A
f : X → C(↑(quasispectrum 𝕜 a), 𝕜)₀
hf₁ : Integrable f μ
ha : p a
⊢ ∫ (x : X), (cfcₙL ha) (f x) ∂μ = (cfcₙL ha) (∫ (x : X), f x ∂μ)

Tactic:
by
  rw [ContinuousLinearMap.integral_comp_comm _ hf₁]

Goal state after:
Module: Mathlib.Analysis.Normed.Group.NullSubmodule

Goal state before:
pp: M : Type u_1
inst✝ : SeminormedCommGroup M
x y : M
hx : ‖x‖ = 0
hy : ‖y‖ = 0
⊢ ‖x‖ + ‖y‖ = 0

Tactic:
rw [hx, hy, add_zero]

Goal state after:
Module: Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Integral

Goal state before:
pp: X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝¹² : RCLike 𝕜
inst✝¹¹ : MeasurableSpace X
μ : Measure X
inst✝¹⁰ : NonUnitalNormedRing A
inst✝⁹ : StarRing A
inst✝⁸ : NormedSpace 𝕜 A
inst✝⁷ : IsScalarTower 𝕜 A A
inst✝⁶ : SMulCommClass 𝕜 A A
inst✝⁵ : NonUnitalContinuousFunctionalCalculus 𝕜 A p
inst✝⁴ : CompleteSpace A
inst✝³ : NormedSpace ℝ A
inst✝² : TopologicalSpace X
inst✝¹ : OpensMeasurableSpace X
s : Set X
hs : MeasurableSet s
f : X → 𝕜 → 𝕜
bound : X → ℝ
a : A
inst✝ : SecondCountableTopologyEither X C(↑(quasispectrum 𝕜 a), 𝕜)
hf : ContinuousOn (uncurry f) (s ×ˢ quasispectrum 𝕜 a)
f_zero : ∀ᵐ (x : X) ∂μ.restrict s, f x 0 = 0
bound_ge : ∀ᵐ (x : X) ∂μ.restrict s, ∀ z ∈ quasispectrum 𝕜 a, ‖f x z‖ ≤ bound x
bound_int : HasFiniteIntegral bound (μ.restrict s)
ha : p a
this : ∀ᵐ (x : X) ∂μ.restrict s, ContinuousOn (f x) (quasispectrum 𝕜 a)
⊢ cfcₙ (fun r ↦ ∫ (x : X) in s, f x r ∂μ) a = ∫ (x : X) in s, cfcₙ (f x) a ∂μ

Tactic:
refine cfcₙ_setIntegral' _ _ this f_zero ⟨?_, ?_⟩ ha

Goal state after:
case refine_1
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝¹² : RCLike 𝕜
inst✝¹¹ : MeasurableSpace X
μ : Measure X
inst✝¹⁰ : NonUnitalNormedRing A
inst✝⁹ : StarRing A
inst✝⁸ : NormedSpace 𝕜 A
inst✝⁷ : IsScalarTower 𝕜 A A
inst✝⁶ : SMulCommClass 𝕜 A A
inst✝⁵ : NonUnitalContinuousFunctionalCalculus 𝕜 A p
inst✝⁴ : CompleteSpace A
inst✝³ : NormedSpace ℝ A
inst✝² : TopologicalSpace X
inst✝¹ : OpensMeasurableSpace X
s : Set X
hs : MeasurableSet s
f : X → 𝕜 → 𝕜
bound : X → ℝ
a : A
inst✝ : SecondCountableTopologyEither X C(↑(quasispectrum 𝕜 a), 𝕜)
hf : ContinuousOn (uncurry f) (s ×ˢ quasispectrum 𝕜 a)
f_zero : ∀ᵐ (x : X) ∂μ.restrict s, f x 0 = 0
bound_ge : ∀ᵐ (x : X) ∂μ.restrict s, ∀ z ∈ quasispectrum 𝕜 a, ‖f x z‖ ≤ bound x
bound_int : HasFiniteIntegral bound (μ.restrict s)
ha : p a
this : ∀ᵐ (x : X) ∂μ.restrict s, ContinuousOn (f x) (quasispectrum 𝕜 a)
⊢ AEStronglyMeasurable (fun x ↦ mkD ((quasispectrum 𝕜 a).domRestrict (f x)) 0) (μ.restrict s)

case refine_2
X : Type u_1
𝕜 : Type u_2
A : Type u_3
p : A → Prop
inst✝¹² : RCLike 𝕜
inst✝¹¹ : MeasurableSpace X
μ : Measure X
inst✝¹⁰ : NonUnitalNormedRing A
inst✝⁹ : StarRing A
inst✝⁸ : NormedSpace 𝕜 A
inst✝⁷ : IsScalarTower 𝕜 A A
inst✝⁶ : SMulCommClass 𝕜 A A
inst✝⁵ : NonUnitalContinuousFunctionalCalculus 𝕜 A p
inst✝⁴ : CompleteSpace A
inst✝³ : NormedSpace ℝ A
inst✝² : TopologicalSpace X
inst✝¹ : OpensMeasurableSpace X
s : Set X
hs : MeasurableSet s
f : X → 𝕜 → 𝕜
bound : X → ℝ
a : A
inst✝ : SecondCountableTopologyEither X C(↑(quasispectrum 𝕜 a), 𝕜)
hf : ContinuousOn (uncurry f) (s ×ˢ quasispectrum 𝕜 a)
f_zero : ∀ᵐ (x : X) ∂μ.restrict s, f x 0 = 0
bound_ge : ∀ᵐ (x : X) ∂μ.restrict s, ∀ z ∈ quasispectrum 𝕜 a, ‖f x z‖ ≤ bound x
bound_int : HasFiniteIntegral bound (μ.restrict s)
ha : p a
this : ∀ᵐ (x : X) ∂μ.restrict s, ContinuousOn (f x) (quasispectrum 𝕜 a)
⊢ HasFiniteIntegral (fun x ↦ mkD ((quasispectrum 𝕜 a).domRestrict (f x)) 0) (μ.restrict s)
Module: Mathlib.Analysis.InnerProductSpace.Dual

Goal state before:
pp: case neg
𝕜 : Type u_1
E : Type u_2
inst✝³ : RCLike 𝕜
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
inst✝ : CompleteSpace E
ℓ : StrongDual 𝕜 E
Y : Submodule 𝕜 E := (↑ℓ).ker
htriv : Yᗮ ≠ ⊥
⊢ ∃ a, (toDualMap 𝕜 E) a = ℓ

Tactic:
Submodule.ne_bot_iff

Goal state after:
case neg
𝕜 : Type u_1
E : Type u_2
inst✝³ : RCLike 𝕜
inst✝² : NormedAddCommGroup E
inst✝¹ : InnerProductSpace 𝕜 E
inst✝ : CompleteSpace E
ℓ : StrongDual 𝕜 E
Y : Submodule 𝕜 E := (↑ℓ).ker
htriv : ∃ x ∈ Yᗮ, x ≠ 0
⊢ ∃ a, (toDualMap 𝕜 E) a = ℓ