| 0 ≤ i0, ~1 ≤ i0, 0 ≤ i0 → (i0 * (i0 + 1) * (2 * i0 + 1)) % 6 = 0 ⊦ ((i0 + 1) * (2 + i0) * (2 * (i0 + 1) + 1)) % 6 = 0 |
(i0 * (i0 + 1) * (2 * i0 + 1)) % 6 = 0, 0 ≤ i0 ⊦ ((i0 + 1) * (2 + i0) * (2 * (i0 + 1) + 1)) % 6 = 0
Used simplifier rules: forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs%zero-gels-04: ⊦ i ≤ 0 ∧ 0 ≤ j → i ≤ j; from specification int-abs%numleledel-01: i0 ≠ 0, i0 ≤ i ⊦ (* i) ≤ j → (* i0) ≤ j; from specification int-abs