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Talk:Zermelo-Fraenkel Axioms

Revision as of 14:11, 16 December 2007 by Zhero (talk | contribs) (New page: I believe the axiom of infinity is incorrect; shouldn't it be that for all <math>a \in A</math>, <math>a \cup \{a\} \in A</math> as well?)

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I believe the axiom of infinity is incorrect; shouldn't it be that for all $a \in A$ , $a \cup \{a\} \in A$ as well?

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