| ¬ prime(i) ∧ 2 ≤ i → (∃ j. prime(j) ∧ j | i ∧ j < i ∧ (∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i)), max_prime_divisor(i) < i, 2 ≤ i, max_prime_divisor(i) ≤ 0, 0 ≤ i, 0 < i ⊦ prime(i) |
max_prime_divisor(i) < i, 2 ≤ i, max_prime_divisor(i) ≤ 0, 0 ≤ i, 0 < i, prime(j), j | i, j < i, ∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i ⊦ prime(i)