Theorem: QuasispectrumRestricts.cfcₙ_eq_restrict
File: Mathlib/Analysis/NormedSpace/Star/ContinuousFunctionalCalculus/Restrict.lean

tactic: by_cases hg : ContinuousOn g (σₙ R a) ∧ g 0 = 0
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case pos
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a) ∧ g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

case neg
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬(ContinuousOn g (σₙ R a) ∧ g 0 = 0)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: obtain ⟨hg, hg0⟩ := hg
state_before: case pos
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a) ∧ g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case pos.intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: rw [cfcₙ_apply g a, cfcₙHom_eq_restrict f halg hpa hqa h, nonUnitalStarAlgHom_apply,
  cfcₙHom_eq_cfcₙ_extend 0]
state_before: case pos.intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case pos.intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
⊢ cfcₙ
      (Function.extend Subtype.val
        (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
              { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
        0)
      a =
    cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: apply cfcₙ_congr fun x hx ↦ ?_
state_before: case pos.intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
⊢ cfcₙ
      (Function.extend Subtype.val
        (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
              { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
        0)
      a =
    cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
x : S
hx : x ∈ σₙ S a
⊢ Function.extend Subtype.val
      (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
          ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
      0 x =
    (algebraMap R S) (g (f x))

tactic: lift x to σₙ S a using hx
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
x : S
hx : x ∈ σₙ S a
⊢ Function.extend Subtype.val
      (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
          ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
      0 x =
    (algebraMap R S) (g (f x))
state_after: case intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
x : { x // x ∈ σₙ S a }
⊢ Function.extend Subtype.val
      (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
          ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
      0 ↑x =
    (algebraMap R S) (g (f ↑x))

tactic: simp [Function.comp, Subtype.val_injective.extend_apply]
state_before: case intro
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ContinuousOn g (σₙ R a)
hg0 : g 0 = 0
x : { x // x ∈ σₙ S a }
⊢ Function.extend Subtype.val
      (⇑({ toFun := ⇑(StarAlgHom.ofId R S), continuous_toFun := ⋯, map_zero' := ⋯ }.comp
          ({ toFun := (σₙ R a).restrict g, continuous_toFun := ⋯, map_zero' := ⋯ }.comp
            { toFun := Subtype.map ⇑f ⋯, continuous_toFun := ⋯, map_zero' := ⋯ })))
      0 ↑x =
    (algebraMap R S) (g (f ↑x))
state_after: no goals

tactic: simp only [not_and_or] at hg
state_before: case neg
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬(ContinuousOn g (σₙ R a) ∧ g 0 = 0)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case neg
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a) ∨ ¬g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: obtain (hg | hg) := hg
state_before: case neg
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a) ∨ ¬g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case neg.inl
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

case neg.inr
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: have : ¬ ContinuousOn (fun x ↦ algebraMap R S (g (f x)) : S → S) (σₙ S a) := by
  refine fun hg' ↦ hg ?_
  rw [halg.embedding.continuousOn_iff]
  simpa [halg.embedding.continuousOn_iff, Function.comp, h.left_inv _] using
    hg'.comp halg.embedding.continuous.continuousOn
    (fun _ : R ↦ quasispectrum.algebraMap_mem S)
state_before: case neg.inl
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: case neg.inl
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
this : ¬ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a

tactic: rw [cfcₙ_apply_of_not_continuousOn a hg, cfcₙ_apply_of_not_continuousOn a this]
state_before: case neg.inl
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
this : ¬ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: no goals

tactic: refine fun hg' ↦ hg ?_
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
⊢ ¬ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
state_after: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
hg' : ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ ContinuousOn g (σₙ R a)

tactic: rw [halg.embedding.continuousOn_iff]
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
hg' : ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ ContinuousOn g (σₙ R a)
state_after: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
hg' : ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ ContinuousOn (⇑(algebraMap R S) ∘ g) (σₙ R a)

tactic: simpa [halg.embedding.continuousOn_iff, Function.comp, h.left_inv _] using
  hg'.comp halg.embedding.continuous.continuousOn
  (fun _ : R ↦ quasispectrum.algebraMap_mem S)
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬ContinuousOn g (σₙ R a)
hg' : ContinuousOn (fun x => (algebraMap R S) (g (f x))) (σₙ S a)
⊢ ContinuousOn (⇑(algebraMap R S) ∘ g) (σₙ R a)
state_after: no goals

tactic: rw [cfcₙ_apply_of_not_map_zero a hg, cfcₙ_apply_of_not_map_zero a (by simpa [h.map_zero])]
state_before: case neg.inr
R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬g 0 = 0
⊢ cfcₙ g a = cfcₙ (fun x => (algebraMap R S) (g (f x))) a
state_after: no goals

tactic: simpa [h.map_zero]
state_before: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁷ : Semifield R
inst✝²⁶ : StarRing R
inst✝²⁵ : MetricSpace R
inst✝²⁴ : TopologicalSemiring R
inst✝²³ : ContinuousStar R
inst✝²² : Field S
inst✝²¹ : StarRing S
inst✝²⁰ : MetricSpace S
inst✝¹⁹ : TopologicalRing S
inst✝¹⁸ : ContinuousStar S
inst✝¹⁷ : TopologicalSpace A
inst✝¹⁶ : NonUnitalRing A
inst✝¹⁵ : StarRing A
inst✝¹⁴ : Module S A
inst✝¹³ : IsScalarTower S A A
inst✝¹² : SMulCommClass S A A
inst✝¹¹ : NonUnitalContinuousFunctionalCalculus S q
inst✝¹⁰ : Algebra R S
inst✝⁹ : Module R A
inst✝⁸ : IsScalarTower R S A
inst✝⁷ : StarModule R S
inst✝⁶ : ContinuousSMul R S
inst✝⁵ : CompleteSpace R
inst✝⁴ : IsScalarTower R A A
inst✝³ : SMulCommClass R A A
inst✝² : NonUnitalContinuousFunctionalCalculus R p
inst✝¹ : UniqueNonUnitalContinuousFunctionalCalculus R A
f : C(S, R)
halg : UniformEmbedding ⇑(algebraMap R S)
a : A
hpa : p a
hqa : q a
h : QuasispectrumRestricts a ⇑f
inst✝ : CompactSpace ↑(σₙ S a)
g : R → R
hg : ¬g 0 = 0
⊢ ¬(algebraMap R S) (g (f 0)) = 0
state_after: no goals