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Proof step 6 from proof shiftright-minus-one (previous step)

⊦ bits2int(firstn(1, restn(0, mklist(true, i→n(j)) + true '))) = ~1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
⊦ bits2int(firstn(1, mklist(true, i→n(j)) + true ')) = ~1

Rule argument

Additional information

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