0 < j, i0 < 0, 1 < j, abs(j0) < j, i0 < j, j0 < j, i0 ≤ i0 * j + j0, j0 ≤ 0 ⊦ j = 1
Used simplifier rules: ⊦ 0 < i → (i ≤ 1 ↔ i = 1); (s)