`BookProof.SpectralGapStability.notMem_spectrum_of_gapAt` {A : F →L[ℂ] F} (hA : IsSelfAdjoint A) {lam d : ℝ} (hd : 0 < d) (h : GapAt A lam d) : (lam : ℂ) ∉ spectrum ℂ A

Initializing...

`BookProof.SpectralGapStability.notMem_spectrum_of_gapAt` {A : F →L[ℂ] F} (hA : IsSelfAdjoint A) {lam d : ℝ} (hd : 0 < d) (h : GapAt A lam d) : (lam : ℂ) ∉ spectrum ℂ A · Prove2Me