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theorem proved term proof

tenfold_times_D

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formal statement (Lean)

  76theorem tenfold_times_D : (10 : ℕ) * 5 = 50 := by decide

proof body

Term-mode proof.

  77
  78/-- Two 5-fold halves of a 10-fold: decimal = 2 × 5 (half-halves). -/

depends on (8)

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