
PF Contest  Win "Conquering the Physics GRE" book! Click Here to EnterDismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!
Prove: Set of rational numbers cannot be expressed as intersection of open sets
Loading...
Similar Threads  Prove rational numbers  Date 

Proving discontinuity for rational numbers (reduced form)  Dec 19, 2016 
Prove √ is not a rational number  Sep 13, 2012 
Prove that There exists a sequence of rationals approaching any real number  Jun 14, 2012 
How to prove rational number is a commutative field  Sep 10, 2011 
Prove F isomorphic to the field of rational numbers  Aug 6, 2011 