| i ≠ 0, i = i0 / gcd(i0, j) * gcd(i, j), j = j / gcd(i0, j) * gcd(j, i), 0 < j ⊦ j = 0, i0 = 0, i = 0, i = i0 |
j = j / gcd(i0, j) * gcd(j, i), i = i0 / gcd(i0, j) * gcd(i, j), 0 < j ⊦ i = 0, i = i0, i0 = 0, j = 0
Used simplifier rules: ⊦ gcd(i, j) = gcd(j, i);