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<!-- $Id$ -->
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<HTML><HEAD><TITLE>ZF/AC</TITLE></HEAD><BODY>
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<H2>AC -- Equivalents of the Axiom of Choice</H2>
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Krzysztof Grabczewski has mechanized the first two chapters of the book
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<P>
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<PRE>
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@book{rubin&rubin,
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author = "Herman Rubin and Jean E. Rubin",
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title = "Equivalents of the Axiom of Choice, {II}",
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publisher = "North-Holland",
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year = 1985}
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</PRE>
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<P>
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The report
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<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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<P>
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<HR>
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<P>Last modified 5 March 1996
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<ADDRESS>
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<P><A HREF="http://www.cl.cam.ac.uk/users/lcp/">Lawrence C. Paulson</A> /
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<A NAME="lcp@cl.cam.ac.uk" HREF="mailto:lcp@cl.cam.ac.uk">lcp@cl.cam.ac.uk</A>
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</ADDRESS>
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