Talk:Famous Theorems of Mathematics/Set Theory

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[edit] Definition of Sets

I think this page might be a perfect location for the proof that not all collections of objects are sets. I don't remember exactly how this proof goes so I will think on it and post it here, so that if someone deems it worthy to go on the page they can shift it over. -Rekov (talk) 19:28, 21 December 2007 (UTC)