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Proof step 32 from proof byte-law-and-one (previous step)

⊦ lastn(8, fillsgn(8, sgn(bitsand(int2bits(i), int2bits(j))))) = lastn(8, fillsgn(8, sgn(bitsand(lastn(8, fillsgn(8, int2bits(i))), int2bits(j))))), sgn(lastn(8, fillsgn(8, sgn(bitsand(int2bits(i), int2bits(j)))))) = sgn(lastn(8, fillsgn(8, sgn(bitsand(lastn(8, fillsgn(8, int2bits(i))), int2bits(j))))))

User applied rule weakening

And obtained the following new goals

Rule argument

poslist: right 2

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