Restklassenringe (Z)/mod 1/Operationstafeln

Der Restklassenring $\mathbb {Z} /(1)=\{0\}$ , genannt der Nullring, also 0 = 1, hat die folgenden Verknüpfungstabellen:

{\begin{array}{c||c|c|c|}+&0\\\hline 0&0\\\end{array}}

{\begin{array}{c||c|c|c|}*&0\\\hline 0&0\\\end{array}}

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