| getdims(i ' + ints0) = [], getdims(ints0) = [] → ints0 = [] ⊦ |
⊦ 0 < j → getdims(j ' + ints) = j ' + getdims(ints)
⊦ j ≤ 0 → getdims(j ' + ints) = 0 '
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i], [CSIMPSEQ : ⊦ ¬ ints + ints0 ≠ [] ↔ ints = [] ∧ ints0 = []], [CSIMPSEQ : ⊦ i ' ≠ []], [CSIMPSEQ : ⊦ (ints + ints0) + ints1 = ints + ints0 + ints1])], [EXTRATERMS : (ints0, i)]]