264theorem omega_mul_of_coprime {m n : ℕ} (_hm : m ≠ 0) (_hn : n ≠ 0) (h : Nat.Coprime m n) : 265 omega (m * n) = omega m + omega n := by
proof body
Term-mode proof.
266 simp only [omega] 267 exact ArithmeticFunction.cardDistinctFactors_mul h 268 269/-- Ω (number of prime factors with multiplicity) is additive: Ω(mn) = Ω(m) + Ω(n). -/
depends on (9)
Lean names referenced from this declaration's body.