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Math Help - I need help on inverse of bijective function.

  1. #1
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    I need help on inverse of bijective function.

    Hey, I have some troubles with solving the problem below:

    Let f: X -> Y and g: Y -> Z be bijective functions.
    Prove that (g o f )^(-1) = f^(-1) o g^(-1).

    I think I can understand it intuitively, but I don't know how to elaborate it.
    Thank you.
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  2. #2
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    Apr 2008
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    I think I found the answer in other posts.

    http://www.mathhelpforum.com/math-he...ons-proof.html
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