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-<H2>AC -- Equivalents of the Axiom of Choice</H2>
-
-Krzysztof Grabczewski has mechanized the first two chapters of the book
-
-<P>
-<PRE>
-@book{rubin&rubin,
- author = "Herman Rubin and Jean E. Rubin",
- title = "Equivalents of the Axiom of Choice, {II}",
- publisher = "North-Holland",
- year = 1985}
-</PRE>
-
-<P>
-The report
-<A HREF="http://www.cl.cam.ac.uk/Research/Reports/TR377-lcp-mechanising-set-theory.ps.gz">Mechanizing Set Theory</A>,
-by Paulson and Grabczewski, describes both this development and ZF's theories
-of cardinals.
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-</html>