and \(y=\overline{A . C}\)
\(\begin{array}{l|l|l|l|l|}\hline A & {\mathrm{B}} & {\mathrm{C}=(\mathrm{A}+\mathrm{B})} & {\mathrm{A} \mathrm{C}} & {\mathrm{y}=\overline{\mathrm{A} . \mathrm{C}}} \\ \hline 0 & {0} & {0} & {0} & {1} \\ {0} & {1} & {1} & {0} & {1} \\ {1} & {0} & {1} & {1} & {0} \\ {1} & {1} & {1} & {1} & {0} \\ \hline\end{array}\)