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structure definition def or abbrev

LedgerState

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formal statement (Lean)

  38structure LedgerState where
  39  entries : List ℂ
  40  phase : ℝ  -- Global phase
  41
  42/-- Two ledger states are physically equivalent if they differ only by a global phase.
  43
  44    This is the origin of U(1) gauge symmetry! -/

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