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Proof step 33 from proof getintarray-in (previous step)

⊦ i ∈ getintarray(r, 0, st[r -- _length] .intval, 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 2:
⊦ getintarray(r, i, j, st) = intvalues(getarray(r, i, j, st))
Proof step 32:
⊦ i ∈ intvalues(getarray(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 , F , [st, j, i, r] → [st, st[r -- _length] .intval, 0, r] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, st[r -- _length] .intval, 0, r)]]