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theorem proved term proof

reciprocity

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formal statement (Lean)

  73theorem reciprocity (e : RecognitionEvent) : event_cost e = event_cost (reciprocal e) := by

proof body

Term-mode proof.

  74  simp only [event_cost, reciprocal]
  75  exact J_symmetric e.ratio_pos.ne'
  76
  77/-! ## Ledger Structure -/
  78
  79/-- A list of events is balanced if every event is paired with its reciprocal. -/

used by (14)

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depends on (23)

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