most recent 30 from http://mathoverflow.net 2013-05-21T04:58:09Z http://mathoverflow.net/feeds/user/26027 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/105731/functional-subrings/105749#105749 Josh Ree 2012-08-28T18:52:56Z 2012-08-28T18:52:56Z

<p>You're assuming that $C(X)$ actually separates the points of $X$. Otherwise one could have $M_{x,y}=C(X)$. </p>