| j ≠ 0, i % j = 0, ∃ j0. i0 = j0 * j ⊦ (i + i0) / j = i / j + i0 / j, 0 = j |
i % j = 0 ⊦ j = 0, (i + j0 * j) / j = i / j + j0
Used simplifier rules: div-mult-03: j ≠ 0 ⊦ (i * j) / j = i;%commutativity: ⊦ i * j = j * i; from specification int-mult%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult