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Proof step 3 from proof shiftzero-zero-size (previous step)

⊦ j ≠ 0 → bits2int(sublist(0, # fillsgn(0, int2bits(i)), mklist(false, i→n(j)) + fillsgn(0, int2bits(i)))) = bits2uint(int2bits(i)) >> j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ j = 0, bits2int(sublist(0, # int2bits(i), mklist(false, i→n(j)) + int2bits(i))) = bits2uint(int2bits(i)) >> j

Rule argument

Additional information

Used simplifier rules: ⊦ fillsgn(0, bits) = bits;