| 2 ≤ i * j ∧ (∀ i0. 1 < i0 ∧ i0 < i * j → ¬ i0 | i * j), 0 < i, 1 < i, 0 < j, 1 < j ⊦ |
1 < j, 1 < i, 0 < i, 2 ≤ i * j, 0 < j, 0 ≤ j, ∀ i0. 1 < i0 ∧ i0 < i * j → ¬ i0 | i * j ⊦
Used simplifier rules: zero-ge: ⊦ 0 < i → (0 ≤ i * j ↔ 0 ≤ j); from specification int-mult%commutativity: ⊦ i * j = j * i; from specification int-mult%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult%zero-gr: ⊦ 0 < i → (0 < i * j ↔ 0 < j); from specification int-mult%forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs%forward-le: ⊦ i ≤ j ∧ 0 < i → 0 < j; (forward) from specification int-abs