Define f:R R by f(x)=x if x is rational and f(x)=0 if x is irrational. Prove that f has a limit at c iff c=0.
Last edited by Jhevon; April 28th 2009 at 08:33 PM.
Follow Math Help Forum on Facebook and Google+
http://www.mathhelpforum.com/math-he...mit-proof.html
View Tag Cloud