| j0 * j + 1 = i0 + j, i0 < j, i0 < 0, 0 < j, j + j0 * j ≤ 0, j0 < 0, j0 < j, j0 + 1 < j, i0 + 1 < j ⊦ j = 0, j = 1, i0 / j = j0 |
i0 = (j0 - 1) * j + 1, j0 * j + 1 = i0 + j, i0 < j, i0 < 0, 0 < j, j + j0 * j ≤ 0, j0 < 0, j0 < j, j0 + 1 < j, i0 + 1 < j ⊦ j = 0, j = 1, i0 / j = j0
j0 * j + 1 = i0 + j, i0 < j, i0 < 0, 0 < j, j + j0 * j ≤ 0, j0 < 0, j0 < j, j0 + 1 < j, i0 + 1 < j ⊦ i0 = (j0 - 1) * j + 1, j = 0, j = 1, i0 / j = j0
Used formulas: i0 = (j0 - 1) * j + 1