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Proof step 2 from proof fillsgn-fix (previous step)

# bytes < n ⊦ fillsgn(n, bytes) = fix(n, bytes)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ # bytes < n ∧ bytes2int(bytes) < 0 → fillsgn(n, bytes) = mklist(i2b(~1), n - # bytes) + bytes
Proof step 4:
¬(# bytes < n ∧ bytes2int(bytes) < 0), # bytes < n ⊦ fillsgn(n, bytes) = fix(n, bytes)
Proof step 12:
# bytes < n ∧ bytes2int(bytes) < 0, # bytes < n ⊦ mklist(i2b(~1), n - # bytes) + bytes = fix(n, bytes)

Rule argument

name: fillsgn-neg rotate: F subst: [bytes, n] → [bytes, n]

Additional information

Used terms: bytes, n