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structure definition def or abbrev

DirectedEdge

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formal statement (Lean)

  66structure DirectedEdge where
  67  /-- Source vertex (3-bit binary) -/
  68  source : Fin 8
  69  /-- Target vertex (3-bit binary) -/
  70  target : Fin 8
  71  /-- They differ in exactly one coordinate (edge condition) -/
  72  adjacent : source ≠ target
  73
  74/-- The number of undirected edges in Q_D: D · 2^{D-1}. -/

depends on (9)

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