English
For natural numbers m, n, Coprime m n holds if and only if IsRelPrime m n.
Русский
Для натуральных чисел m, n утверждение Coprime m n эквивалентно IsRelPrime m n.
LaTeX
$$$\forall m,n \in \mathbb{N}, \operatorname{Coprime}(m,n) \iff \operatorname{IsRelPrime}(m,n)$$$
Lean4
theorem coprime_iff_isRelPrime {m n : ℕ} : m.Coprime n ↔ IsRelPrime m n :=
by
simp_rw [coprime_iff_gcd_eq_one, IsRelPrime, ← and_imp, ← dvd_gcd_iff, isUnit_iff_dvd_one]
exact ⟨fun h _ ↦ (h ▸ ·), (dvd_one.mp <| · dvd_rfl)⟩