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Proof step 1 from proof fits-law-band (conclusion)

⊦ band(b2i(by1), b2i(by2)) = b2i(i2b(band(b2i(by1), b2i(by2))))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ b2i(i2b(i)) = cast(8, i)
Proof step 3:
⊦ band(b2i(by1), b2i(by2)) = cast(8, band(b2i(by1), b2i(by2)))

Rule argument

name: byte-is-cast rotate: F subst: [i] → [band(b2i(by1), b2i(by2))]

Additional information

Used terms: band(b2i(by1), b2i(by2))