how do you prove the preimage of the image of the domain is equal to the domain and how do you prove the image of the preimage of the codomain is the codomain

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- November 17th 2009, 06:28 PMleinadwerdnapreimage and image stuff
how do you prove the preimage of the image of the domain is equal to the domain and how do you prove the image of the preimage of the codomain is the codomain

- November 17th 2009, 08:09 PMleinadwerdna
please help

- November 17th 2009, 08:57 PMDrexel28