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structure definition def or abbrev

MinimalLedger

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formal statement (Lean)

  75structure MinimalLedger (X : Type*) where
  76  /-- The charge of an element. -/
  77  charge : X → ℤ
  78  /-- Conservation: sum of charges is zero in any valid transaction. -/
  79  conserved : ∀ (txn : List X), (txn.map charge).sum = 0
  80
  81/-- Hypothesis class: MP forces ledger structure.
  82
  83This is a PHYSICAL HYPOTHESIS, not a mathematical theorem.
  84It captures the claim that recognition pairing forces conservation.
  85-/

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