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Proof step 4 from proof getbyte-putbyte (conclusion)

⊦ st[r -- _length] .intval = n→i(# bytes) → getbytearray(r, putByteArray(bytes, r, 0, st)) = bytes

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ getbytearray(r, st) = getbytearray(r, 0, st[r -- _length] .intval, st)
Proof step 2:
⊦ (putByteArray(bytes, r, i, st)[r0 -- _length]) = st[r0 -- _length]
Proof step 3:
⊦ j = n→i(# bytes) → getbytearray(r, i, j, putByteArray(bytes, r, i, st)) = bytes

Rule argument

[crewrite-arg: getByteArray-all , F , [st, r] → [putByteArray(bytes, r, 0, st), r] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (putByteArray(bytes, r, 0, st), r)]]