⊦ # bits ≤ 8 → bits2bytes(bits) = i2b(bits2int(bits)) '
Used simplifier rules: ⊦ # boolvar ' = 0 +1;% ⊦ bits2int(true ') = ~1;% ⊦ by ' = by0 ' ↔ by = by0; Used terms: true '