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Thread: Proof showing bijection

  1. #1
    Super Member
    Feb 2008

    Proof showing bijection

    Let A and B be sets. Show that there is a natural bijection between A X B and B X A.
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  2. #2
    Newbie Halmos Rules's Avatar
    Feb 2009
    HINT: The first and simplest function that comes to mind is the one you need........
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