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Proof step 6 from proof getarray-copy (previous step)

⊦ r = r2, getarray(r, arraycopy(r1, i1, r2, i2, j, st)) = 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 5:
⊦ r = r2, getarray(r, arraycopy(r1, i1, r2, i2, j, st)) = 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)]]