| 0 ≤ j * j0 + i0, 0 ≤ j, 0 < i, i0 < 0 ⊦ i = 0, j | i * (j * j0 + i0) - i * i0 + j0 * j |
⊦ i * (j + j0) = i * j + i * j0
Used simplifier rules: divides-mult-sub: ⊦ i | i * j - j0 ↔ i | j0;%div-mult: ⊦ i | i * j;%sub-add-06: ⊦ i + j - i0 + j = i - i0; from specification int-abs%add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2%add-c: ⊦ i + j = j + i; from specification int-basic2%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult%commutativity: ⊦ i * j = j * i; from specification int-mult Used terms: i0, j * j0, i