| j | gcd(i, i0) ⊦ j | i ∧ j | i0, 0 ≤ abs(i) ∧ abs(i) < abs(i0) ∧ abs(j) | gcd(abs(i), abs(i0)) |
j | gcd(i, i0) ⊦ j | i ∧ j | i0, abs(i) < abs(i0) ∧ j | gcd(abs(i), abs(i0))
Used simplifier rules: divides-abs-01: ⊦ abs(i) | j ↔ i | j;% ⊦ 0 ≤ abs(i); (s)