mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: A : Type u_4
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℝ A
inst✝ : CompleteSpace A
a : A
ha : (spectrum ℝ a).Nonempty
⊢ (spectralRadius ℝ a).toReal ∈ spectrum ℝ a ∨ -(spectralRadius ℝ a).toReal ∈ spectrum ℝ a

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁷ : Ring A
inst✝⁶ : PartialOrder A
inst✝⁵ : StarRing A
inst✝⁴ : StarOrderedRing A
inst✝³ : TopologicalSpace A
inst✝² : Algebra ℝ A
inst✝¹ : ContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a b : A
ha : IsStrictlyPositive a
hb : IsStrictlyPositive b
⊢ Commute a b ↔ IsStrictlyPositive (a * b)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁵ : TopologicalSpace A
inst✝⁴ : Ring A
inst✝³ : StarRing A
inst✝² : Algebra ℂ A
inst✝¹ : ContinuousFunctionalCalculus ℂ A IsStarNormal
inst✝ : T2Space A
a : A
f : ℝ → ℝ
ha : IsSelfAdjoint a
⊢ cfc f a = cfc (fun x ↦ ↑(f x.re)) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: R : Type u_3
S : Type u_4
A : Type u_5
inst✝¹⁰ : Semifield R
inst✝⁹ : Field S
inst✝⁸ : NonUnitalRing A
inst✝⁷ : Algebra R S
inst✝⁶ : Module R A
inst✝⁵ : Module S A
inst✝⁴ : IsScalarTower S A A
inst✝³ : SMulCommClass S A A
inst✝² : IsScalarTower R S A
inst✝¹ : TopologicalSpace R
inst✝ : TopologicalSpace S
a : A
f : C(S, R)
h : QuasispectrumRestricts a ⇑f
h_cpct : CompactSpace ↑(σₙ S a)
⊢ CompactSpace ↑(σₙ R a)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁵ : TopologicalSpace A
inst✝⁴ : Ring A
inst✝³ : StarRing A
inst✝² : Algebra ℂ A
inst✝¹ : ContinuousFunctionalCalculus ℂ A IsStarNormal
inst✝ : T2Space A
f : ℂ → ℂ
a : A
hf_real : ∀ x ∈ σ ℂ a, star (f x) = f x
ha : IsSelfAdjoint a
⊢ cfc f a = cfc (fun x ↦ (f ↑x).re) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝⁴ : NormedField 𝕜
inst✝³ : ProperSpace 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
⊢ UpperHemicontinuous (spectrum 𝕜)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁷ : TopologicalSpace A
inst✝⁶ : NonUnitalRing A
inst✝⁵ : StarRing A
inst✝⁴ : Module ℂ A
inst✝³ : IsScalarTower ℂ A A
inst✝² : SMulCommClass ℂ A A
inst✝¹ : T2Space A
inst✝ : NonUnitalContinuousFunctionalCalculus ℂ A IsStarNormal
a : A
f : ℝ → ℝ
ha : IsSelfAdjoint a
⊢ cfcₙ f a = cfcₙ (fun x ↦ ↑(f x.re)) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℝ A
inst✝ : CompleteSpace A
⊢ UpperHemicontinuous (spectrum ℝ≥0)

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝⁶ : NontriviallyNormedField 𝕜
inst✝⁵ : ProperSpace 𝕜
inst✝⁴ : NonUnitalNormedRing A
inst✝³ : NormedSpace 𝕜 A
inst✝² : SMulCommClass 𝕜 A A
inst✝¹ : IsScalarTower 𝕜 A A
inst✝ : CompleteSpace A
⊢ UpperHemicontinuous (quasispectrum 𝕜)

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.Spectrum

Goal state before:
pp: A : Type u_2
inst✝⁴ : NonUnitalNormedRing A
inst✝³ : NormedSpace ℝ A
inst✝² : SMulCommClass ℝ A A
inst✝¹ : IsScalarTower ℝ A A
inst✝ : CompleteSpace A
⊢ UpperHemicontinuous (quasispectrum ℝ≥0)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁷ : TopologicalSpace A
inst✝⁶ : NonUnitalRing A
inst✝⁵ : StarRing A
inst✝⁴ : Module ℂ A
inst✝³ : IsScalarTower ℂ A A
inst✝² : SMulCommClass ℂ A A
inst✝¹ : T2Space A
inst✝ : NonUnitalContinuousFunctionalCalculus ℂ A IsStarNormal
f : ℂ → ℂ
a : A
hf_real : ∀ x ∈ σₙ ℂ a, star (f x) = f x
ha : IsSelfAdjoint a
⊢ cfcₙ f a = cfcₙ (fun x ↦ (f ↑x).re) a

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁹ : TopologicalSpace A
inst✝⁸ : Ring A
inst✝⁷ : PartialOrder A
inst✝⁶ : StarRing A
inst✝⁵ : StarOrderedRing A
inst✝⁴ : Algebra ℝ A
inst✝³ : IsSemitopologicalRing A
inst✝² : T2Space A
inst✝¹ : ContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a : A
ha : 0 ≤ a
⊢ cfcHom ha = SpectrumRestricts.starAlgHom (cfcHom ⋯) ⋯

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁹ : TopologicalSpace A
inst✝⁸ : Ring A
inst✝⁷ : PartialOrder A
inst✝⁶ : StarRing A
inst✝⁵ : StarOrderedRing A
inst✝⁴ : Algebra ℝ A
inst✝³ : IsSemitopologicalRing A
inst✝² : T2Space A
inst✝¹ : ContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
ha : 0 ≤ a
⊢ cfc f a = cfc (fun x ↦ ↑(f x.toNNReal)) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: s t : Set ℝ
⊢ (convexHull ℝ) (⇑equivRealProdLm ⁻¹' s ×ˢ t) = ⇑equivRealProdLm ⁻¹' (convexHull ℝ) (s ×ˢ t)

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: s t : Set ℝ
⊢ ⇑equivRealProdLm ⁻¹' (convexHull ℝ) (s ×ˢ t) = (convexHull ℝ) s ×ℂ (convexHull ℝ) t

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | r < z.im} ⊆ s
hs₂ : s ⊆ {z | r ≤ z.im}
⊢ s ⊆ closure {z | r < z.im}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | r < z.im} ⊆ s
hs₂ : s ⊆ {z | r ≤ z.im}
⊢ (↑r + 1) * I ∈ {c | r < c.im}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | r < z.im} ⊆ s
hs₂ : s ⊆ {z | r ≤ z.im}
⊢ IsConnected s

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | z.im < r} ⊆ s
hs₂ : s ⊆ {z | z.im ≤ r}
⊢ s ⊆ closure {z | z.im < r}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | z.im < r} ⊆ s
hs₂ : s ⊆ {z | z.im ≤ r}
⊢ (↑r - 1) * I ∈ {c | c.im < r}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
s : Set ℂ
hs₁ : {z | z.im < r} ⊆ s
hs₂ : s ⊆ {z | z.im ≤ r}
⊢ IsConnected s

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁹ : TopologicalSpace A
inst✝⁸ : Ring A
inst✝⁷ : PartialOrder A
inst✝⁶ : StarRing A
inst✝⁵ : StarOrderedRing A
inst✝⁴ : Algebra ℝ A
inst✝³ : IsSemitopologicalRing A
inst✝² : T2Space A
inst✝¹ : ContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ → ℝ
a : A
hf_nonneg : ∀ x ∈ σ ℝ a, 0 ≤ f x
ha : 0 ≤ a
⊢ cfc f a = cfc (fun x ↦ (f ↑x).toNNReal) a

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝¹¹ : TopologicalSpace A
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : PartialOrder A
inst✝⁸ : StarRing A
inst✝⁷ : StarOrderedRing A
inst✝⁶ : Module ℝ A
inst✝⁵ : IsSemitopologicalRing A
inst✝⁴ : IsScalarTower ℝ A A
inst✝³ : SMulCommClass ℝ A A
inst✝² : T2Space A
inst✝¹ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a : A
ha : 0 ≤ a
⊢ cfcₙHom ha = QuasispectrumRestricts.nonUnitalStarAlgHom (cfcₙHom ⋯) ⋯

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝¹¹ : TopologicalSpace A
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : PartialOrder A
inst✝⁸ : StarRing A
inst✝⁷ : StarOrderedRing A
inst✝⁶ : Module ℝ A
inst✝⁵ : IsSemitopologicalRing A
inst✝⁴ : IsScalarTower ℝ A A
inst✝³ : SMulCommClass ℝ A A
inst✝² : T2Space A
inst✝¹ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
ha : 0 ≤ a
⊢ cfcₙ f a = cfcₙ (fun x ↦ ↑(f x.toNNReal)) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: z w : ℂ
⊢ z.Rectangle w = (convexHull ℝ) {z, ↑z.re + ↑w.im * I, ↑w.re + ↑z.im * I, w}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: U : Set ℂ
U_convex : Convex ℝ U
z w : ℂ
hz : z ∈ U
hw : w ∈ U
hzw : ↑z.re + ↑w.im * I ∈ U
hwz : ↑w.re + ↑z.im * I ∈ U
⊢ {z, ↑z.re + ↑w.im * I, ↑w.re + ↑z.im * I, w} ⊆ U

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: U : Set ℂ
U_convex : Convex ℝ U
z w : ℂ
hz : z ∈ U
hw : w ∈ U
hzw : ↑z.re + ↑w.im * I ∈ U
hwz : ↑w.re + ↑z.im * I ∈ U
⊢ z.Rectangle w ⊆ U

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝¹¹ : TopologicalSpace A
inst✝¹⁰ : NonUnitalRing A
inst✝⁹ : PartialOrder A
inst✝⁸ : StarRing A
inst✝⁷ : StarOrderedRing A
inst✝⁶ : Module ℝ A
inst✝⁵ : IsSemitopologicalRing A
inst✝⁴ : IsScalarTower ℝ A A
inst✝³ : SMulCommClass ℝ A A
inst✝² : T2Space A
inst✝¹ : NonUnitalContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ → ℝ
a : A
hf_nonneg : ∀ x ∈ σₙ ℝ a, 0 ≤ f x
ha : 0 ≤ a
⊢ cfcₙ f a = cfcₙ (fun x ↦ (f ↑x).toNNReal) a

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ I ∈ {c | 0 < c.im}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ 1 ∈ {c | 0 < c.re}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ 1 + I ∈ {c | 0 < c.im} ∩ {c | 0 < c.re}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ -I ∈ {c | c.im < 0}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ -1 ∈ {c | c.re < 0}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ -1 - I ∈ {c | c.im < 0} ∩ {c | c.re < 0}

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ 1 - I ∈ ({c | 0 < c.im} ∪ {c | 0 < c.re}) ∩ ({c | c.im < 0} ∪ {c | c.re < 0})

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
x : ℂ
⊢ x ∈ {c | 0 < c.im} ∪ {c | 0 < c.re} ∪ ({c | c.im < 0} ∪ {c | c.re < 0}) → x ∈ {0}ᶜ

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Complex.Convex

Goal state before:
pp: r : ℝ
⊢ IsPathConnected {0}ᶜ

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
k : 𝕜
hk : k ∈ resolventSet 𝕜 a
H₁ :
  HasFDerivAt Ring.inverse (-((ContinuousLinearMap.mulLeftRight 𝕜 A) ↑(IsUnit.unit hk)⁻¹) ↑(IsUnit.unit hk)⁻¹)
    ((algebraMap 𝕜 A) k - a)
⊢ HasDerivAt (fun k ↦ (algebraMap 𝕜 A) k - a) 1 k

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
k : 𝕜
hk : k ∈ resolventSet 𝕜 a
⊢ HasDerivAt (resolvent a) (-resolvent a k ^ 2) k

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
k : 𝕜
hk : k ∈ resolventSet 𝕜 a
H₁ :
  HasFDerivAt Ring.inverse (-((ContinuousLinearMap.mulLeftRight 𝕜 A) ↑(IsUnit.unit hk)⁻¹) ↑(IsUnit.unit hk)⁻¹)
    ((algebraMap 𝕜 A) k - a)
⊢ HasFDerivAt (fun a ↦ (algebraMap 𝕜 A) k - a) (-ContinuousLinearMap.id 𝕜 A) a

Tactic:
by

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

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NormedField 𝕜
E : Type u_2
inst✝⁴ : NormedRing E
inst✝³ : StarRing E
inst✝² : CStarRing E
inst✝¹ : NormedAlgebra 𝕜 E
inst✝ : CompleteSpace E
u : ↥(unitary E)
a✝ : Nontrivial E
k : 𝕜
hk : k⁻¹ ∈ σ 𝕜 ↑(toUnits u)⁻¹
hnk : k ≠ 0
⊢ ‖k‖⁻¹ ≤ ‖↑(toUnits u)⁻¹‖

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
k : 𝕜
hk : k ∈ resolventSet 𝕜 a
⊢ HasFDerivAt (fun x ↦ resolvent x k) (((ContinuousLinearMap.mulLeftRight 𝕜 A) (resolvent a k)) (resolvent a k)) a

Tactic:
by

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

Goal state before:
pp: R : Type u_1
S : Type u_2
A : Type u_3
p q : A → Prop
inst✝²⁵ : Semifield R
inst✝²⁴ : StarRing R
inst✝²³ : MetricSpace R
inst✝²² : IsTopologicalSemiring R
inst✝²¹ : ContinuousStar R
inst✝²⁰ : Field S
inst✝¹⁹ : StarRing S
inst✝¹⁸ : MetricSpace S
inst✝¹⁷ : IsTopologicalRing S
inst✝¹⁶ : ContinuousStar S
inst✝¹⁵ : NonUnitalRing A
inst✝¹⁴ : StarRing A
inst✝¹³ : Module S A
inst✝¹² : IsScalarTower S A A
inst✝¹¹ : SMulCommClass S A A
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 : IsScalarTower R A A
inst✝⁴ : SMulCommClass R A A
inst✝³ : MetricSpace A
inst✝² : NonUnitalIsometricContinuousFunctionalCalculus S A q
inst✝¹ : CompleteSpace R
inst✝ : ContinuousMapZero.UniqueHom R A
f : C(S, R)
halg : Isometry ⇑(algebraMap R S)
h0 : p 0
h : ∀ (a : A), p a ↔ q a ∧ QuasispectrumRestricts a ⇑f
a : A
ha : p a
⊢ Isometry ⇑(cfcₙHom ha)

Tactic:
by

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

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NormedField 𝕜
E : Type u_2
inst✝⁴ : NormedRing E
inst✝³ : StarRing E
inst✝² : CStarRing E
inst✝¹ : NormedAlgebra 𝕜 E
inst✝ : CompleteSpace E
u : ↥(unitary E)
⊢ σ 𝕜 ↑u ⊆ Metric.sphere 0 1

Tactic:
by

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

Goal state before:
pp: 𝕜 : Type u_1
inst✝⁵ : NormedField 𝕜
E : Type u_2
inst✝⁴ : NormedRing E
inst✝³ : StarRing E
inst✝² : CStarRing E
inst✝¹ : NormedAlgebra 𝕜 E
inst✝ : CompleteSpace E
u : E
hu : u ∈ unitary E
z : 𝕜
hz : z ∈ σ 𝕜 u
⊢ ‖z‖ = 1

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NontriviallyNormedField A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
k : 𝕜
hk : k ∈ resolventSet 𝕜 a
⊢ HasDerivAt (fun x ↦ resolvent x k) (resolvent a k ^ 2) a

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : NonUnitalCStarAlgebra A
a : A
x : ℝ≥0
hx : x ∈ quasispectrum ℝ≥0 a
⊢ x ≤ ‖a‖₊

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
r : ℝ≥0
hr : ↑r < (spectralRadius 𝕜 a)⁻¹
z : 𝕜
z_mem : z ∈ Metric.closedBall 0 ↑r
⊢ IsUnit (1 - z • a)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
ha : IsSelfAdjoint a
⊢ spectralRadius ℂ a = ↑‖a‖₊

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: 𝕜 : Type u_1
A : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra 𝕜 A
inst✝ : CompleteSpace A
a : A
r : ℝ≥0
hr : ↑r < (spectralRadius 𝕜 a)⁻¹
⊢ DifferentiableOn 𝕜 (fun z ↦ (1 - z • a)⁻¹ʳ) (Metric.closedBall 0 ↑r)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
ha : IsSelfAdjoint a
⊢ (spectralRadius ℂ a).toReal = ‖a‖

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁷ : NormedRing A
inst✝⁶ : StarRing A
inst✝⁵ : NormedAlgebra ℝ A
inst✝⁴ : PartialOrder A
inst✝³ : StarOrderedRing A
inst✝² : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝¹ : NonnegSpectrumClass ℝ A
inst✝ : Nontrivial A
f : ℝ≥0 → ℝ≥0
a : A
hf : ContinuousOn f (σ ℝ≥0 a)
ha : 0 ≤ a
⊢ IsGreatest (f '' σ ℝ≥0 a) ‖cfc f a‖₊

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
x : ℝ≥0
hx : x ∈ σ ℝ≥0 a
hf : ContinuousOn f (σ ℝ≥0 a)
ha : 0 ≤ a
⊢ f x ≤ ‖cfc f a‖₊

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝¹ : CStarAlgebra A
a : A
inst✝ : IsStarNormal a
⊢ (fun n ↦ ↑‖(a⋆ * a) ^ n‖₊ ^ (1 / ↑n)) = (fun x ↦ x ^ 2) ∘ fun n ↦ ↑‖a ^ n‖₊ ^ (1 / ↑n)

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
c : ℝ≥0
h : ∀ x ∈ σ ℝ≥0 a, f x ≤ c
h✝ : Nontrivial A
⊢ ‖0‖₊ ≤ c

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
c : ℝ≥0
h : ∀ x ∈ σ ℝ≥0 a, f x ≤ c
⊢ ‖cfc f a‖₊ ≤ c

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
r : ℝ≥0
r_pos : 0 < r
r_lt : ↑r < (spectralRadius ℂ a)⁻¹
p : FormalMultilinearSeries ℂ ℂ A := fun n ↦ ContinuousMultilinearMap.mkPiRing ℂ (Fin n) (a ^ n)
h : ↑r ≤ p.radius
⊢ ↑r ≤ liminf (fun i ↦ 1 / ↑‖a ^ i‖₊ ^ (1 / ↑i)) atTop

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
c : ℝ≥0
hc : 0 < c
h : ∀ x ∈ σ ℝ≥0 a, f x < c
h✝ : Nontrivial A
⊢ ‖0‖₊ < c

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝¹ : CStarAlgebra A
a : A
inst✝ : IsStarNormal a
⊢ spectralRadius ℂ a = ↑‖a‖₊

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
⊢ limsup (fun n ↦ ↑‖a ^ n‖₊ ^ (1 / ↑n)) atTop ≤ spectralRadius ℂ a

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
⊢ (spectralRadius ℂ (a⋆ * a)).toReal = ‖a‖ ^ 2

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
⊢ (spectralRadius ℂ (a * a⋆)).toReal = ‖a‖ ^ 2

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
f : ℝ≥0 → ℝ≥0
a : A
c : ℝ≥0
hc : 0 < c
h : ∀ x ∈ σ ℝ≥0 a, f x < c
⊢ ‖cfc f a‖₊ < c

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
x✝ : ℕ
⊢ ENNReal.ofReal (‖a ^ x✝‖ ^ (1 / ↑x✝)) = ↑‖a ^ x✝‖₊ ^ (1 / ↑x✝)

Tactic:
← ofReal_rpow_of_nonneg (norm_nonneg _) _,

Goal state after:
A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
x✝ : ℕ
⊢ ENNReal.ofReal ‖a ^ x✝‖ ^ (1 / ↑x✝) = ↑‖a ^ x✝‖₊ ^ (1 / ↑x✝)

A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
x✝ : ℕ
⊢ 0 ≤ 1 / ↑x✝
Module: Mathlib.Analysis.CStarAlgebra.Spectrum

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
⊢ √(spectralRadius ℂ (a⋆ * a)).toReal = ‖a‖

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
⊢ √(spectralRadius ℂ (a * a⋆)).toReal = ‖a‖

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁷ : NormedRing A
inst✝⁶ : StarRing A
inst✝⁵ : NormedAlgebra ℝ A
inst✝⁴ : PartialOrder A
inst✝³ : StarOrderedRing A
inst✝² : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝¹ : NonnegSpectrumClass ℝ A
inst✝ : Nontrivial A
a : A
ha : 0 ≤ a
⊢ IsGreatest (σ ℝ≥0 a) ‖a‖₊

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝² : NormedRing A
inst✝¹ : NormedAlgebra ℂ A
inst✝ : CompleteSpace A
a : A
⊢ Tendsto (fun n ↦ ENNReal.ofReal (‖a ^ n‖ ^ (1 / ↑n))) atTop (𝓝 (spectralRadius ℂ a))

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝⁶ : NormedRing A
inst✝⁵ : StarRing A
inst✝⁴ : NormedAlgebra ℝ A
inst✝³ : PartialOrder A
inst✝² : StarOrderedRing A
inst✝¹ : IsometricContinuousFunctionalCalculus ℝ A IsSelfAdjoint
inst✝ : NonnegSpectrumClass ℝ A
a : A
x : ℝ≥0
hx : x ∈ σ ℝ≥0 a
ha : 0 ≤ a
⊢ x ≤ ‖a‖₊

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
ha : IsSelfAdjoint a
z : ℂ
hz : z ∈ σ ℂ a
this : NormedAlgebra ℚ A
hu : NormedSpace.exp (I • a) ∈ unitary A
Iu : ℂˣ := Units.mk0 I I_ne_zero
⊢ NormedSpace.exp (I • z) ∈ σ ℂ (NormedSpace.exp (I • a))

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝³ : NormedRing A
inst✝² : NormedAlgebra ℂ A
inst✝¹ : CompleteSpace A
inst✝ : Nontrivial A
a : A
h : spectrum ℂ a = ∅
⊢ resolventSet ℂ a = Set.univ

Tactic:
by

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

Goal state before:
pp: A : Type u_1
inst✝ : CStarAlgebra A
a : A
ha : IsSelfAdjoint a
z : ℂ
hz : z ∈ σ ℂ a
this✝ : NormedAlgebra ℚ A
hu : NormedSpace.exp (I • a) ∈ unitary A
Iu : ℂˣ := Units.mk0 I I_ne_zero
this : NormedSpace.exp (I • z) ∈ σ ℂ (NormedSpace.exp (I • a))
⊢ z.im = (↑z.re).im

Tactic:
by

Goal state after:
Module: Mathlib.Analysis.Normed.Algebra.GelfandFormula

Goal state before:
pp: A : Type u_2
inst✝³ : NormedRing A
inst✝² : NormedAlgebra ℂ A
inst✝¹ : CompleteSpace A
inst✝ : Nontrivial A
a : A
h : spectrum ℂ a = ∅
H₀ : resolventSet ℂ a = Set.univ
H₁ : Differentiable ℂ fun z ↦ resolvent a z
⊢ Tendsto (fun z ↦ resolvent a z) (cocompact ℂ) (𝓝 ?m.100)

Tactic:
by

Goal state after:
Module: Mathlib.Topology.Sets.VietorisTopology

Goal state before:
pp: α : Type u_1
inst✝ : TopologicalSpace α
B : Set (Set α)
hB : IsTopologicalBasis B
⊢ IsTopologicalBasis ((fun u ↦ {K | ↑K ⊆ ⋃₀ u ∧ ∀ U ∈ u, (↑K ∩ U).Nonempty}) '' {u | u.Finite ∧ u ⊆ B})

Tactic:
by

Goal state after: