`BookProof.ChapterShannonSampling.hasSum_sq_samples` (F : Lp ℂ 2 (haarAddCircle (T := T))) : HasSum (fun n : ℤ => ‖bandSignal (T := T) (F : AddCircle T → ℂ) (n / T)‖ ^ 2) (T * ∫ ξ

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`BookProof.ChapterShannonSampling.hasSum_sq_samples` (F : Lp ℂ 2 (haarAddCircle (T := T))) : HasSum (fun n : ℤ => ‖bandSignal (T := T) (F : AddCircle T → ℂ) (n / T)‖ ^ 2) (T * ∫ ξ · Prove2Me