| ¬ true ∈ bits, # bits0 = # bits2 ⊦ bits2 = [], bits0 = [], bits2uint(bitsor(bits0, bits2) + bits1) = bits2uint(bits2 + bits1), bits = [], true ∈ bits0, true ∈ bits |
# bits0 = # bits2 ⊦ bits = [], bits2uint(bitsor(bits0, bits2) + bits1) = bits2uint(bits2 + bits1), bits0 = [], bits2 = [], true ∈ bits, true ∈ bits0