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Proof step 3 from proof no-leading-zero-02 (previous step)

bytes = by + bytes0 ⊦ bytes = [], by = i2b(0), by = i2b(~1), int2bytes(bytes2int(bytes)) = bytes

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ by = i2b(0), by = i2b(~1), int2bytes(bytes2int(by ' + bytes0)) = by ' + bytes0

Rule argument

Additional information

Used simplifier rules: ⊦ (bytes + bytes0) + bytes1 = bytes + bytes0 + bytes1;% ⊦ by ' + bytes ≠ [];% ⊦ by + bytes = by ' + bytes;