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Need help proving

  1. Mar 21, 2005 #1
    need help proving....

    i need help proving :
    every subsequence of a cauchy sequence is a cauchy sequence..

    i wasnt sure what room to post it in
  2. jcsd
  3. Mar 21, 2005 #2
    My first question is the usual one. Can you write down the definition of a Cauchy sequence (if you aren't sure, it's actually in another post in this forum right now!)?
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