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Theorem byte-mult-neg

⊦ i < 0 ∧ j < 0 → i2b(i * 256 + j) = i2b(j)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: byte-mult-256,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 7
Proof steps: 12
Used lemmas: byte-equal, bib-neg-low, bib-neg-high, i2b-equal,
Used spec theorems:
- int-abs/zero-ge-01
- int-div/mod-mult-neg-03
Used simplifier rules: