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Homework Help: Please explain the solution (Real Analysis)

  1. Aug 29, 2010 #1
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

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  3. Aug 29, 2010 #2

    Hurkyl

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    What parts do you get? What parts are you having trouble with?
     
  4. Aug 29, 2010 #3
    My understanding shuts down in the second paragraph, second sentence.
     
  5. Aug 29, 2010 #4
    Do you understand why [tex] \textbf{N}^k [/tex] is countable?
     
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