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theorem proved term proof

conj_involution

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formal statement (Lean)

  75theorem conj_involution (e : LedgerEvent) : e.conj.conj = e := by

proof body

Term-mode proof.

  76  cases e
  77  simp [LedgerEvent.conj]
  78
  79/-! ## §2. The Ledger as a Multiset of Paired Events -/
  80
  81/-- A **ledger page** is a finite list of events with a balance constraint. -/

used by (3)

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depends on (14)

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