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Theorem byte-mult-256

⊦ i2b(i * 256 + j) = i2b(j)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: byte-add-256, byte-law-add-one, byte-law-add-pos, byte-law-mult-one, byte-mult-256-01, getsetShort-theorem,
Used by units in proved state: bytes,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 44
Proof steps: 71
Used lemmas: byte-in, num-i2b-neg, num-i2b-equal, byte-mult, bib-upper, num-ibbi, bib-lower, bib-in-01, byte-mult-neg, byte-equal, i2b-equal, byte-mult-pos, i2b-noteq,
Used spec theorems:
- int-basic1/lsrec
- int-div/modex
Used simplifier rules: