# Abelian groups

If G is any group, define $:G->G by $(g) = g^-1. Show that G is abelian if an only if $ is a homomorphism.

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Proof:

If G is abelian, then for any x,y in G, we have xy=yx. ...

#### Solution Summary

This is a proof regarding homomorphisms and Abelian groups.

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