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Proof step 11 from proof getarray-get (previous step)

n < # getarray(r, st) ⊦ (getarray(r, st)[n]) = st[r -- n→i(n) '], getarray(r, st) = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ getarray(r, st) = getarray(r, 0, st[r -- _length] .intval, st)
Proof step 10:
n < # getarray(r, 0, st[r -- _length] .intval, st) ⊦ (getarray(r, 0, st[r -- _length] .intval, st)[n]) = st[r -- n→i(n) '], getarray(r, 0, st[r -- _length] .intval, st) = []

Rule argument

[crewrite-arg: getArray-all, F, [st, r] → [st, r]]

Additional information

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