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Proof step 4 from proof okbytearray-is-byte (previous step)

0 < st[r -- (sks + _length ')] .intval, 0 ≤ i, i < st[r -- (sks + _length ')] .intval, okbytearray(st[r -- sks] .refval, st), st[st[r -- sks] .refval -- _length] .intval ≤ i, st[st[r -- sks] .refval -- _length] .intval < st[r -- (sks + _length ')] .intval ⊦ sks = [], is_bytevalue(st[st[r -- sks] .refval -- i '])

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,sks ≠ [] → st[r -- (sks + sk ')] = st[st[r -- sks] .refval -- sk] ,[sk, sks, r, st] → [_length, sks, r, st] ,F ,storefuns , ,lookup-last-rec ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)])], [EXTRATERMS : (_length, sks, r, st)]]