< Gruppe < Inverses < Selbstinvers
Sei
G
{\displaystyle {}G}
eine
Gruppe
. Zeige, dass
(
x
−
1
)
−
1
=
x
{\displaystyle {}{\left(x^{-1}\right)}^{-1}=x\,}
für alle
x
∈
G
{\displaystyle {}x\in G}
ist.
Zur Lösung
,
Alternative Lösung erstellen
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