Theorem: closedEmbedding_cfcₙAux
File: Mathlib/Analysis/NormedSpace/Star/ContinuousFunctionalCalculus/Instances.lean

tactic: simp only [cfcₙAux, NonUnitalStarAlgHom.coe_comp]
state_before: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
⊢ ClosedEmbedding ⇑(cfcₙAux ⋯ a ha)
state_after: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
⊢ ClosedEmbedding
    ((⇑↑(cfcHom ⋯) ∘ ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))) ∘
      ⇑ContinuousMapZero.toContinuousMapHom)

tactic: refine ((cfcHom_closedEmbedding (hp₁.mpr ha)).comp ?_).comp
  ContinuousMapZero.closedEmbedding_toContinuousMap
state_before: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
⊢ ClosedEmbedding
    ((⇑↑(cfcHom ⋯) ∘ ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))) ∘
      ⇑ContinuousMapZero.toContinuousMapHom)
state_after: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
⊢ ClosedEmbedding ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))

tactic: let e : C(σₙ 𝕜 a, 𝕜) ≃ₜ C(σ 𝕜 (a : A⁺¹), 𝕜) :=
  { (Homeomorph.compStarAlgEquiv' 𝕜 𝕜 <| .setCongr <|
      (quasispectrum_eq_spectrum_inr' 𝕜 𝕜 a).symm) with
    continuous_toFun := ContinuousMap.continuous_comp_left _
    continuous_invFun := ContinuousMap.continuous_comp_left _ }
state_before: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
⊢ ClosedEmbedding ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))
state_after: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
e : C(↑(σₙ 𝕜 a), 𝕜) ≃ₜ C(↑(σ 𝕜 ↑a), 𝕜) :=
  let __src := Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯);
  { toEquiv := __src.toEquiv, continuous_toFun := ⋯, continuous_invFun := ⋯ }
⊢ ClosedEmbedding ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))

tactic: exact e.closedEmbedding
state_before: 𝕜 : Type u_1
A : Type u_2
inst✝⁹ : RCLike 𝕜
inst✝⁸ : NonUnitalNormedRing A
inst✝⁷ : StarRing A
inst✝⁶ : CstarRing A
inst✝⁵ : CompleteSpace A
inst✝⁴ : NormedSpace 𝕜 A
inst✝³ : IsScalarTower 𝕜 A A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : StarModule 𝕜 A
p : A → Prop
p₁ : Unitization 𝕜 A → Prop
hp₁ : ∀ {x : A}, p₁ ↑x ↔ p x
a : A
ha : p a
inst✝ : ContinuousFunctionalCalculus 𝕜 p₁
e : C(↑(σₙ 𝕜 a), 𝕜) ≃ₜ C(↑(σ 𝕜 ↑a), 𝕜) :=
  let __src := Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯);
  { toEquiv := __src.toEquiv, continuous_toFun := ⋯, continuous_invFun := ⋯ }
⊢ ClosedEmbedding ⇑↑(Homeomorph.compStarAlgEquiv' 𝕜 𝕜 (Homeomorph.setCongr ⋯))
state_after: no goals