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Homework Help: Lim sup

  1. Feb 19, 2008 #1
    1. The problem statement, all variables and given/known data

    show that if Xn is bounded and Xn>=Yn for all n, then lim sup Xn >= lim sup Yn

    2. Relevant equations

    3. The attempt at a solution

    I know that if I can show that y<= some fixed number, then I can show that lim sup y<=that number, but I'm not sure how to show that Yn<a fixed number...
  2. jcsd
  3. Feb 19, 2008 #2


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    Science Advisor
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    Gold Member

    Have you tried a proof by contradiction?
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