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Proof step 12 from proof shiftright-rec-pos (previous step)

0 ≤ i, 0 ≤ i0 ⊦ bits2int(firstn(# int2bits(i), restn(0, (mklist(false, i→n(i0)) + false ') + int2bits(i)))) = bits2int(sublist(0, # int2bits(i / 2), mklist(false, i→n(i0)) + int2bits(i / 2)))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
0 ≤ i, 0 ≤ i0 ⊦ bits2int(firstn(# int2bits(i), (mklist(false, i→n(i0)) + false ') + int2bits(i))) = bits2int(sublist(0, # int2bits(i / 2), mklist(false, i→n(i0)) + int2bits(i / 2)))

Rule argument

Additional information

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