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structure definition def or abbrev

Substrate

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formal statement (Lean)

  46structure Substrate where
  47  label : String
  48  phase : ℕ
  49  sigma : ℤ
  50  deriving DecidableEq, Repr
  51
  52namespace Substrate
  53
  54/-- The "divine" substrate predicate: phase = 0 and σ = 1. -/

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