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Talk:Universe

From Encyclopedia of Mathematics
Revision as of 18:33, 12 October 2017 by Boris Tsirelson (talk | contribs) (a universe, but not a model)
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The set of all hereditary finite sets is a universe, but not a model of ZF (since ZF stipulates the axiom of infinity). Boris Tsirelson (talk) 20:33, 12 October 2017 (CEST)

How to Cite This Entry:
Universe. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Universe&oldid=42053