| 2 ^ (i1 + i0) < 2 ^ i0, 2 ^ (i1 + i0) = 2 ^ i0 + j, i1 < 0, 0 ≤ i1 + i0, 0 ≤ i0, 0 ≤ j ⊦ |
Used simplifier rules: ls: ⊦ i + j < j ↔ i < 0; from specification int-basic2%lenls: ⊦ i ≤ j → ¬ j < i; from specification int-abs%add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2%add-c: ⊦ i + j = j + i; from specification int-basic2