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Proof step 6 from proof bar-at (conclusion)

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

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:
n→i(n) < j, 0 < j ⊦ (bytevalues(getarray(r, i, j, st))[n]) = st[r -- (i + n→i(n)) '] .byteval

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ n→i(m) < j → 0 < j])]]