Abelian and ambivalent iff elementary abelian 2-group
Statement
The following are equivalent for a group :
- is both an Abelian group (?) and an Ambivalent group (?): every element is conjugate to its inverse.
- is an Elementary abelian 2-group (?), i.e., it has exponent one or two (this is equivalent to being elementary abelian because exponent two implies abelian).