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Proof step 29 from proof cast-law-and-one (previous step)

bitsand(lastn(i→n(i), fillsgn(i→n(i), int2bits(j))), int2bits(j0)) ≠ [], 0 < i ⊦ bits2int(lastn(i→n(i), fillsgn(i→n(i), bitsand(int2bits(j), int2bits(j0))))) = bits2int(lastn(i→n(i), fillsgn(i→n(i), bitsand(lastn(i→n(i), fillsgn(i→n(i), int2bits(j))), int2bits(j0))))), bitsand(sgn(lastn(i→n(i), fillsgn(i→n(i), int2bits(j)))), int2bits(j0)) = [], i = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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