<!-- $Id$ -->
<HTML><HEAD><TITLE>ZF/AC</TITLE></HEAD><BODY>
<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.
<P>
<HR>
<P>Last modified 5 March 1996
<ADDRESS>
<P><A HREF="http://www.cl.cam.ac.uk/users/lcp/">Lawrence C. Paulson</A> /
<A NAME="lcp@cl.cam.ac.uk" HREF="mailto:lcp@cl.cam.ac.uk">lcp@cl.cam.ac.uk</A>
</ADDRESS>