| # refs = i→n(countrefs(i ' + ints0)), i ≤ i0, 0 ≤ i, rk ∈ st, posints(ints0), 0 ≤ i0, ∀ ty, acc, ints, i, st, rk, refs0. # refs0 < # refs → ( true → ( rk ∈ st ∧ # refs0 = i→n(countrefs(i ' + ints .rest)) ∧ ints ≠ [] ∧ 0 ≤ i ∧ posints(ints) ∧ ¬ 0 ∈ ints .butlast ∧ i ≤ ints .first → rk ∈ addmultiarrays(refs0, i, acc, ty, ints, st))) ⊦ rk ∈ addmultiarrays(refs, i, acc, ty, i0 ' + ints0, st), 0 ∈ (i0 ' + ints0) .butlast |
⊦ # ints = 1 → addmultiarrays(refs, i, acc, ty, ints, st) = addarray(refs .first, ty, ints .first, st)
# (i0 ' + ints0) ≠ 1, # refs = i→n(countrefs(i ' + ints0)), i ≤ i0, 0 ≤ i, rk ∈ st, posints(ints0), 0 ≤ i0, ∀ ty, acc, ints, i, st, rk, refs0. # refs0 < # refs → ( true → ( rk ∈ st ∧ # refs0 = i→n(countrefs(i ' + ints .rest)) ∧ ints ≠ [] ∧ 0 ≤ i ∧ posints(ints) ∧ ¬ 0 ∈ ints .butlast ∧ i ≤ ints .first → rk ∈ addmultiarrays(refs0, i, acc, ty, ints, st))) ⊦ rk ∈ addmultiarrays(refs, i, acc, ty, i0 ' + ints0, st), 0 ∈ (i0 ' + ints0) .butlast
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ # (ints + ints0) = # ints + # ints0], [CSIMPSEQ : ⊦ # i ' = 0 +1], [CSIMPSEQ : ⊦ (ints + ints0) + ints1 = ints + ints0 + ints1], [CSIMPSEQ : ⊦ 1 = m + 1 ↔ m = 0], [CSIMPSEQ : ⊦ # ints = 0 ↔ ints = []], [CSIMPSEQ : ⊦ (m + n0) + n1 = m + n0 + n1], [CSIMPSEQ : ⊦ m + n = n + m], [CSIMPSEQ : ⊦ (i ' + ints) .first = i], [CSIMPSEQ : ⊦ rk ∈ st → rk ∈ addarray(r, ty, i, st)])], [EXTRATERMS : (st, i0 ' + ints0, ty, acc, i, refs)]]