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Proof step 6 from proof putBar-unrec (previous step)

is_bytevalue(val) ⊦ (putByteArray(bytes, r, i, st)[r -- (i - 1) ', val]) = putByteArray(val .byteval ' + bytes, r, i - 1, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 5:
i = i0 + 1, is_bytevalue(val) ⊦ (putByteArray(bytes, r, i, st)[r -- i0 ', val]) = putByteArray(val .byteval ' + bytes, r, i0, st)

Rule argument

[speclemmaarg: ,i0 = i - j ↔ i = i0 + j ,[i, j, i0] → [i, 1, i0] ,T ,int-abs , ,elim-sub ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ i0 = i - j ↔ i = i0 + j])], [EXTRATERMS : (i, 1, i0)]]