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def definition def or abbrev

cube_edges_count

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formal statement (Lean)

  66def cube_edges_count (D : ℕ) : ℕ := D * 2^(D-1)

proof body

Definition body.

  67
  68/-- Number of faces in a D-cube: F = D(D-1) · 2^(D-2) for D ≥ 2 -/

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