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Proof step 4 from proof getintarray-in-01 (previous step)

i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval ⊦ st[r -- i '] .intval ∈ getintarray(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ i ∈ getintarray(r, st) ↔ (∃ j. i = st[r -- j '] .intval ∧ 0 ≤ j ∧ j < st[r -- _length] .intval)
Proof step 3:
i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval ⊦ ∃ j. st[r -- i '] .intval = st[r -- j '] .intval ∧ 0 ≤ j ∧ j < st[r -- _length] .intval

Rule argument

[crewrite-arg: getintarray-in , F , [st, r, i] → [st, r, st[r -- i '] .intval] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r, st[r -- i '] .intval)]]