A⊕B=AˉB+ABˉA \oplus B=\bar A B+A \bar{B}A⊕B=AˉB+ABˉ
AB‾=A‾+B‾\overline {{AB}}=\overline {A}+{\overline {B}}AB=A+B
A⊕B‾=A‾B‾+AB\overline{\mathrm{A} \oplus \mathrm{B}}= \overline A \overline B+ ABA⊕B=AB+AB
A+AB=AA+A B=AA+AB=A
