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Proof step 2 from proof byteval-02 (conclusion)

⊦ 0 ≤ i ∧ i < st[r -- _length] .intval ∧ okbytearray(r, st) → byteval(st[r -- i '] .byteval) = st[r -- i ']

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ okbytearray(r, st) ∧ 0 ≤ i ∧ i < st[r -- _length] .intval → (¬ is_bytevalue(st[r -- i ']) ↔ false)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : is_bytevalue(val) ⊦ byteval(val .byteval) = val])]]