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inductive definition def or abbrev

Species

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formal statement (Lean)

   9inductive Species
  10  | fermion (f : RSBridge.Fermion)
  11  | W
  12  | Z
  13  | H
  14  deriving DecidableEq, Repr
  15
  16open RSBridge
  17
  18/-- Sector identifier (local copy to avoid circular import).
  19    Note: Neutrino is distinct from Lepton because it has a different baseline (0 vs 2). -/

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depends on (24)

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