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theorem proved term proof

c_preserves_cost

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formal statement (Lean)

  87theorem c_preserves_cost (e : LedgerEntry) :
  88    (applyC e).cost = e.cost := rfl

proof body

Term-mode proof.

  89
  90/-! ## P Symmetry: Parity from Voxel Reflection -/
  91
  92/-- Apply parity (spatial reflection) to a ledger entry. -/

depends on (8)

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