| ¬(band(b2i(by1), bcompl(b2i(by2))) ∈byte ∧ band(bcompl(b2i(by1)), b2i(by2)) ∈byte) ⊦ bor(band(b2i(by1), bcompl(b2i(by2))), band(bcompl(b2i(by1)), b2i(by2))) = b2i(i2b(bor(band(b2i(by1), bcompl(b2i(by2))), band(bcompl(b2i(by1)), b2i(by2))))) |
⊦ bor(band(b2i(by1), bcompl(b2i(by2))), band(bcompl(b2i(by1)), b2i(by2))) = b2i(i2b(bor(band(b2i(by1), bcompl(b2i(by2))), band(bcompl(b2i(by1)), b2i(by2))))), band(b2i(by1), bcompl(b2i(by2))) ∈byte ∧ band(bcompl(b2i(by1)), b2i(by2)) ∈byte