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Proof step 13 from proof multi-subset (previous step)

# refs = i→n(countrefs(i ' + ints0)), 0 ≤ i0, posints(ints0), is_newref_list(refs, st), 0 ≤ i, i ≤ i0, rk ∈ st ⊦ 0 ∈ (i0 ' + ints0) .butlast, rk ∈ addmultiarrays(refs, i, acc, ty, i0 ' + ints0, st) ∧ st[rk] = (addmultiarrays(refs, i, acc, ty, i0 ' + ints0, st)[rk])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ rk ∈ st ∧ # refs = i→n(countrefs(i ' + ints .rest)) ∧ ints ≠ [] ∧ 0 ≤ i ∧ posints(ints) ∧ ¬ 0 ∈ ints .butlast ∧ i ≤ ints .first → rk ∈ addmultiarrays(refs, i, acc, ty, ints, st)
Proof step 12:
rk ∈ st ∧ # refs = i→n(countrefs(i ' + (i0 ' + ints0) .rest)) ∧ i0 ' + ints0 ≠ [] ∧ 0 ≤ i ∧ posints(i0 ' + ints0) ∧ ¬ 0 ∈ (i0 ' + ints0) .butlast ∧ i ≤ (i0 ' + ints0) .first, # refs = i→n(countrefs(i ' + ints0)), 0 ≤ i0, posints(ints0), is_newref_list(refs, st), 0 ≤ i, i ≤ i0, rk ∈ st ⊦ 0 ∈ (i0 ' + ints0) .butlast, true ∧ st[rk] = (addmultiarrays(refs, i, acc, ty, i0 ' + ints0, st)[rk])

Rule argument

[crewrite-arg: multi-refin , F , [st, ints, ty, acc, i, refs, rk] → [st, i0 ' + ints0, ty, acc, i, refs, rk] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (i ' + ints) .rest = ints], [CSIMPSEQ : ⊦ (ints + ints0) + ints1 = ints + ints0 + ints1], [CSIMPSEQ : ⊦ ¬ ints + ints0 ≠ [] ↔ ints = [] ∧ ints0 = []], [CSIMPSEQ : ⊦ i ' ≠ []], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i], [CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ posints(i ' + ints) ↔ 0 ≤ i ∧ posints(ints)], [CSIMPSEQ : ⊦ (i ' + ints) .first = i])], [EXTRATERMS : (st, i0 ' + ints0, ty, acc, i, refs, rk)]]