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Initializing...
`BookProof.ChapterH7.compression_eigenvalue_mem_numericalRange` (V : F →L[ℂ] E) (X : E →L[ℂ] E) (hX : IsSelfAdjoint X) (hViso : ∀ x : F, ‖V x‖ = ‖x‖) {lam : ℂ} {y : F} (hy :... · Prove2Me