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Proof step 6 from proof getbar-rec (conclusion)

⊦ 0 < j → getbytearray(r, i, j, st) = st[r -- i '] .byteval + getbytearray(r, i + 1, j - 1, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ getbytearray(r, i, j, st) = bytevalues(getarray(r, i, j, st))
Proof step 5:
0 < j ⊦ bytevalues(getarray(r, i, j, st)) = st[r -- i '] .byteval ' + bytevalues(getarray(r, i + 1, j - 1, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i < j ∧ 0 ≤ i → 0 < j], [CSIMPSEQ : ⊦ by + bytes = by ' + bytes])]]