| 0 ≤ 1 % j, i * i0 = i1 + 1, gcd(i, j) = 1, 0 ≤ i0, 0 < i, i0 |%| j < j, i0 |%| j < i0, 0 ≤ i0 |%| j, 0 < j, j ≤ i0, 0 < i0, j | i1 ⊦ i = 0, j = 0, (i * i0 |%| j) |%| j = 1 % j |
i * i0 = i1 + 1, gcd(i, j) = 1, 0 ≤ i0, 0 < i, i0 |%| j < j, i0 |%| j < i0, 0 ≤ i0 |%| j, 0 < j, j ≤ i0, 0 < i0, j | i1 ⊦ i = 0, j = 0, (i * i0 |%| j) |%| j = 1 % j
Used simplifier rules: mod-zero: ⊦ 0 < j ∧ 0 ≤ i → 0 ≤ i % j; from specification int-div