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Proof step 5 from proof bar-len (conclusion)

⊦ j ≤ 1 → getbytearray(r, i, j, st) ≠ by ' + by0 ' + bytes

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 4:
bytevalues(getarray(r, i, j, st)) = by ' + by0 ' + bytes, by ∈ bytevalues(getarray(r, i, j, st)), j ≤ 1 ⊦

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ bytes = bytes0 + by ' + bytes1 → by ∈ bytes], [CSIMPFORWARD : ⊦ bytes = bytes0 + by ' + bytes1 → by ∈ bytes], [CSIMPSEQ : ⊦ (bytes + bytes0) + bytes1 = bytes + bytes0 + bytes1], [CSIMPFORWARD : ⊦ by ' + bytes = bytes0 → by ∈ bytes0])]]