⊦ 0 ≤ i % j → i |%| j = i % j
0 ≤ i % abs(j), 0 ≤ i, 0 ≤ i0, 0 ≤ i % abs(j) ⊦ i % abs(j) = i0 |%| abs(j) ↔ i |%| j = i0 |%| j, j = 0
Used terms: abs(j), i