| ∃ m0. m0 | m ∧ prime(m0) ∧ m0 * m0 ≤ m, m * m ≤ n, 2 ≤ n, m | n, ∀ n0. n0 < n → ¬ prime(n0) ∧ 2 ≤ n0 → (∃ m. m | n0 ∧ prime(m) ∧ m * m ≤ n0) ⊦ n = 0, m = 1, m = n, n = 1, prime(m), ∃ m. m | n ∧ prime(m) ∧ m * m ≤ n |
m0 | m, prime(m0), m0 * m0 ≤ m, m * m ≤ n, 2 ≤ n, m | n, m0 | n, ∀ n0. n0 < n → ¬ prime(n0) ∧ 2 ≤ n0 → (∃ m. m | n0 ∧ prime(m) ∧ m * m ≤ n0) ⊦ n = 0, m = 1, m = n, n = 1, prime(m), ∃ m. m | n ∧ prime(m) ∧ m * m ≤ n
Used simplifier rules: divi-trans: ⊦ n0 | m ∧ m | n → n0 | n;