# Zweielementige Menge/Verknüpfungstabelle für Vereinigung/Aufgabe/Lösung

Zur Navigation springen Zur Suche springen

Die Menge sei ${\displaystyle {}M=\{a,b\}}$, die Potenzmenge ist dann

${\displaystyle {}{\mathfrak {P}}\,(M)=\{\emptyset ,\{a\},\{b\},\{a,b\}\}\,.}$

Die Verknüpfungstabelle für die Vereinigung ist

${\displaystyle {}\cup }$ ${\displaystyle {}\emptyset }$ ${\displaystyle {}\{a\}}$ ${\displaystyle {}\{b\}}$ ${\displaystyle {}\{a,b\}}$
${\displaystyle {}\emptyset }$ ${\displaystyle {}\emptyset }$ ${\displaystyle {}\{a\}}$ ${\displaystyle {}\{b\}}$ ${\displaystyle {}\{a,b\}}$
${\displaystyle {}\{a\}}$ ${\displaystyle {}\{a\}}$ ${\displaystyle {}\{a\}}$ ${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{a,b\}}$
${\displaystyle {}\{b\}}$ ${\displaystyle {}\{b\}}$ ${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{b\}}$ ${\displaystyle {}\{a,b\}}$
${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{a,b\}}$ ${\displaystyle {}\{a,b\}}$