1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Need Help with prove in real

  1. Mar 4, 2009 #1
    1. The problem statement, all variables and given/known data
    If X = R with a special metirc, En = [n, infinity) ()
    How can I show infinite intersection of En is empty?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 4, 2009 #2
    I am not sure what you mean by "special metric", since the statement you are trying to show has nothing to do with a metric.

    To show that the intersection is empty use the fact that for any real number x there exists a positive integer n such that x<n.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Need Help with prove in real
  1. Prove: Aka, need help (Replies: 7)