j % i = 0, i * i ≤ j, 2 ≤ j, 0 < j, 0 < i, 1 < i, 0 ≤ j, 1 < i ∧ i < j → ¬ i | j, ∀ i. 1 < i ∧ i < j → ¬ i | j ⊦
Used terms: i