| ⊦ bits1 = [], bits2 + bits1 = [], bits0 = [], lastn(# bits1, fillsgn(# bits1, false ')) = lastn(# bits1, fillsgn(# bits1, bitsand(bits2 + bits1, bits0))), true ∈ bits1 |
⊦ 0 < n → fillsgn(n, boolvar ') = mklist(boolvar, n)
0 < # bits1 ⊦ bits1 = [], bits2 + bits1 = [], bits0 = [], lastn(# bits1, mklist(false, # bits1)) = lastn(# bits1, fillsgn(# bits1, bitsand(bits2 + bits1, bits0))), true ∈ bits1
Used simplifier rules: ⊦ 0 < n ↔ n ≠ 0;% ⊦ # bits = 0 ↔ bits = []; Used terms: false, # bits1