⊦ prime(n) ↔ 1 < n ∧ (∀ m. m | n → m = 1 ∨ m = n)
1 < m ∧ (∀ m0. m0 | m → m0 = 1 ∨ m0 = m), n | m ⊦ n = 1, n = m
Used terms: m