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Theorem byte2bits-first

⊦ byte2bits(by).first ↔ b2i(by) < 0

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: bits2bits-sgn, bits2int-zero-ls, byte2bits-val, bytes2bytes-mone, bytes2int-mone, bytes2int-pos, bytes2int-rec, bytes2int-zero-04,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: byte2bits,
Used spec theorems:
- Used simplifier rules: