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Proof step 2 from proof band-neg (previous step)

j < 0, i < 0, 0 ≤ band(i, j) ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ band(i, j) = bits2int(bitsand(int2bits(i), int2bits(j)))
Proof step 4:
j < 0, i < 0, 0 ≤ bits2int(bitsand(int2bits(i), int2bits(j))) ⊦

Rule argument

name: band-def rotate: F subst: [j, i] → [j, i]

Additional information

Used terms: j, i