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    Is there a way to think of this intuitively?
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    (Original post by Bilbao)
    Is there a way to think of this intuitively?
    Definitely.

    You start with x, you do some reverse action to it so you get f^{-1}(x), then do the forward action f(f^{-1}(x)), you end up where you started which is x.
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    What isn't intuitive about the inverse of f(x) followed by f(x) gives x? Surely it's just the same as division and multiplication. 2*(1/2)*1=1 (1/2)*2*1=1
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    (Original post by Amullai)
    What isn't intuitive about the inverse of f(x) followed by f(x) gives x? Surely it's just the same as division and multiplication. 2*(1/2)*1=1 (1/2)*2*1=1
    Yes if you look it that way it is.
 
 
 
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