Urelements

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11	PDF Document Add to Reading List Source URL: math.boisestate.edu Language: English - Date: 2006-03-03 18:51:41 Cardinal numbers Z notation Urelements Ordinal numbers Paradoxes of set theory Zermelo set theory New Foundations S Naive set theory Mathematical logic Mathematics Set theory
12	PDF Document Add to Reading List Source URL: research.microsoft.com Language: English - Date: 2007-11-15 13:55:59 Z notation Urelements Axioms of set theory Zermelo–Fraenkel set theory New Foundations Axiom of choice Von Neumann universe Axiom of regularity Large cardinal Mathematical logic Set theory Mathematics