# Math Help - Ring Automorphisms and Commutativity

1. ## Ring Automorphisms and Commutativity

Is it necessarily true that if $R$ is a ring and $Aut(R) = id$. (i.e., the only automorphism of R, is $\phi(r)=r$ for all $r\in R$), then $R$ is commutative?

2. ## Re: Ring Automorphisms and Commutativity

EDIT: Mistake of mine