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Proof step 3 from proof putbar-len (conclusion)

⊦ (putByteArray(bytes, r, st)[r1 -- _length]) = st[r1 -- _length]

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ putByteArray(bytes, r, st) = putByteArray(bytes, r, 0, st)
Proof step 2:
⊦ (putByteArray(bytes, r, i, st)[r1 -- _length]) = st[r1 -- _length]

Rule argument

[crewrite-arg: putByteArray-all, F, [st, r, bytes] → [st, r, bytes]]

Additional information

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