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Proof step 34 from proof getintarray-in (previous step)

⊦ i ∈ getintarray(r, st) ↔ (∃ j. i = st[r -- j '] .intval ∧ ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ getintarray(r, st) = getintarray(r, 0, st[r -- _length] .intval, st)
Proof step 33:
⊦ i ∈ getintarray(r, 0, st[r -- _length] .intval, st) ↔ (∃ j. i = st[r -- j '] .intval ∧ ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j)

Rule argument

[crewrite-arg: getintarray-def, F, [st, r] → [st, r]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r)]]