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.

Printable View

- Apr 28th 2009, 06:39 PMtrojanlaxx223Real analysis homework help
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.

- Apr 28th 2009, 09:27 PMGammaBeen there, done that.