| (i + j) / 2 < i, i ≤ j, (i + j) / 2 < j ⊦ 0 < 2 ∧ 0 ≤ i + j |
(i + j) / 2 < i, i ≤ j, (i + j) / 2 < j, i + j < 0 ⊦
Used simplifier rules: forward-le-02: ⊦ j < i ∧ i ≤ 0 → j < 0; (forward) from specification int-abs%lels-01: ⊦ ¬ i ≤ j ↔ j < i; from specification int-abs