| i ≤ j + i0, j ≤ j0 ⊦ i ≤ j0 + i0 |
Used simplifier rules: le-def: ⊦ i ≤ j ↔ ¬ j < i;%lst-03: ⊦ i + j < i0 ∧ ¬ j < j0 → i + j0 < i0; from specification int-basic2%add-c: ⊦ i + j = j + i; from specification int-basic2%add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2