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Proof step 4 from proof exactarray-length-02 (previous step)

val2int(st[r -- _length]) < st[r -- _length] .intval, exactarray(refval(r), ty, st[r -- _length] .intval, st) ⊦ r = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ exactarray(refval(r), ty, i, st) → val2int(st[r -- _length]) = i

Rule argument

[crewrite-arg: exactarray-length-01 , F , [r, ty, i, st] → [r, ty, st[r -- _length] .intval, st] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ i < i])], [EXTRATERMS : (r, ty, st[r -- _length] .intval, st)]]