Der Restklassenkörper ${\displaystyle {}\mathbb {Z} /(2)=\{0,1\}}$ hat die folgenden Verknüpfungstabellen:

${\displaystyle {}+}$	${\displaystyle {}0}$	${\displaystyle {}1}$
${\displaystyle {}0}$	${\displaystyle {}0}$	${\displaystyle {}1}$
${\displaystyle {}1}$	${\displaystyle {}1}$	${\displaystyle {}0}$

${\displaystyle {}\cdot }$	${\displaystyle {}0}$	${\displaystyle {}1}$
${\displaystyle {}0}$	${\displaystyle {}0}$	${\displaystyle {}0}$
${\displaystyle {}1}$	${\displaystyle {}0}$	${\displaystyle {}1}$