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Proof step 12 from proof fillsgn-fix (previous step)

# bytes < n ∧ bytes2int(bytes) < 0, # bytes < n ⊦ mklist(i2b(~1), n - # bytes) + bytes = fix(n, bytes)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
# bytes < n, bytes2int(bytes) < 0 ⊦ mklist(i2b(~1), n - # bytes) + bytes = fix(n, bytes)

Rule argument

Additional information

Used simplifier rules: ⊦ j < i ∧ i ≤ 0 → j < 0; (forward)