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Homework Help: Discrete math : Induction proof

  1. Sep 20, 2013 #1
    Stuck on the induction step,please help

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  2. jcsd
  3. Sep 20, 2013 #2
    For ##n+1## you get one extra number. If it is even you can add it to the "even" sets you have for ##n## and you get additional sets. Count them.
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