| (i + (i0 + 1) * j) |%| j = i |%| j, i0 < j, i0 ≤ 0, 0 < j, ∀ i1, j, i. i→n(i1) < i→n(i0) → 0 < j ∧ i1 ≤ 0 ∧ i1 < j → (i + i1 * j) |%| j = i |%| j ⊦ (i + i0 * j) |%| j = i |%| j |
⊦ 0 < j → i |%| j = (i - j) |%| j
0 < j, (i + (i0 + 1) * j - j) |%| j = i |%| j, i0 < j, i0 ≤ 0, 0 < j, ∀ i1, j, i. i→n(i1) < i→n(i0) → 0 < j ∧ i1 ≤ 0 ∧ i1 < j → (i + i1 * j) |%| j = i |%| j ⊦ (i + i0 * j) |%| j = i |%| j
Used terms: j, i + (i0 + 1) * j