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Proof step 9 from proof okbytearray-is-byte (conclusion)

⊦ okbytearray(st[r -- sks] .refval, st) ∧ 0 ≤ i ∧ i < st[r -- (sks + _length ')] .intval ∧ sks ≠ [] → is_bytevalue(st[r -- (sks + i ' ')])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
okbytearray(st[r -- sks] .refval, st), i < st[r -- (sks + _length ')] .intval, 0 ≤ i, 0 < st[r -- (sks + _length ')] .intval ⊦ sks = [], is_bytevalue(st[r -- (sks + i ' ')])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPFORWARD : ⊦ i < j ∧ 0 ≤ i → 0 < j])]]