⊦ j < 0 → abs(j) = 0 - j
i % j < 0 ⊦ i % j + abs(i) % abs(j) = 0, j = 0, j < 0
i % j < 0, j < 0 ⊦ i % j + abs(i) % (0 - j) = 0, j = 0
Used terms: j