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群表

(1) ( ${\mathcal Z}_{4}$, +) \begin{displaymath}\begin{array}{\vert c\vert c\vert c\vert c\vert c\vert}\hline... ...\bar{2} & & & & \\ \hline \bar{3} & & & & \\ \hline \end{array}\end{displaymath}( ${\mathcal Z}^{*}_{4}, \cdot$) \begin{displaymath}\begin{array}{\vert c\vert c\vert c\vert c\vert}\hline \cdot ... ...ine \bar{2} & & & \\ \hline \bar{3} & & & \\ \hline \end{array}\end{displaymath}