カルノー図
f = A ̄ ⋅ B ̄ ⋅ C + A ̄ ⋅ B ⋅ C + A ⋅ B ̄ ⋅ C ̄ + A ⋅ B ⋅ C ̄ = A ̄ ⋅ C + A ⋅ C ̄ {\displaystyle {\begin{alignedat}{2}f&={\overline {A}}\cdot {\overline {B}}\cdot C+{\overline {A}}\cdot B\cdot C+A\cdot {\overline {B}}\cdot {\overline {C}}+A\cdot B\cdot {\overline {C}}\\&={\overline {A}}\cdot C+A\cdot {\overline {C}}\\\end{alignedat}}}
f = A ̄ ⋅ B ̄ ⋅ C ̄ + A ̄ ⋅ B ⋅ C ̄ + B ̄ ⋅ C ̄ ⋅ D + B ̄ ⋅ C ⋅ D = A ̄ ⋅ C ̄ + B ̄ ⋅ D {\displaystyle {\begin{alignedat}{2}f&={\overline {A}}\cdot {\overline {B}}\cdot {\overline {C}}+{\overline {A}}\cdot B\cdot {\overline {C}}+{\overline {B}}\cdot {\overline {C}}\cdot D+{\overline {B}}\cdot C\cdot D\\&={\overline {A}}\cdot {\overline {C}}+{\overline {B}}\cdot D\\\end{alignedat}}}
カルノー図で論理式を簡単にする例をしめす。