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Proof step 27 from proof okbytearray-put-field (previous step)

⊦ fs ' = _length, fs ' = _type, okbytearray(r, st[r0 -- fs ', val]) ↔ okbytearray(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ okbytearray(r, st) ↔ okarray(r, byte_type, st)
Proof step 26:
⊦ fs ' = _length, fs ' = _type, okarray(r, byte_type, st[r0 -- fs ', val]) ↔ okbytearray(r, st)

Rule argument

[crewrite-arg: okbytearray-01, F, [st, r] → [st[r0 -- fs ', val], r]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[r0 -- fs ', val], r)]]