OAI/Analysis/KadisonKastler/TracialQuotientCompleteness.lean

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Two-norm completeness on bounded sets of the tracial quotient

  1. theorem OAI.KadisonKastler.tracialQuotient_bounded_complete line 26

    Source documentation

    Every operator-norm-bounded two-Cauchy sequence has its GNS limit in this quotient. A one-unit norm slack suffices for the subsequent closure proof.

    theorem tracialQuotient_bounded_complete (hω : (ω : Filter ℕ) ≤ atTop)
        (a : ℕ → Q) (C : ℝ) (hC : 0 ≤ C) (ha : ∀ n, ‖a n‖ ≤ C)
        (hc : CauchySeq (fun n => traceStateVector φ (a n))) :
        ∃ b : Q, ‖b‖ ≤ C + 1 ∧
          Tendsto (fun n => traceStateVector φ (a n)) atTop (𝓝 (traceStateVector φ b)) := by
    …

    Mentions: OAI.KadisonKastler.traceStateVector