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<H2>ex--Miscellaneous Examples</H2>
<P>This directory presents a number of small examples, illustrating various
features of Isabelle/HOL.
<UL>
<LI>Files <KBD>cla.ML</KBD> demonstrates the
power of Isabelle's classical reasoner.
<LI>Files <KBD>meson.ML</KBD> and <KBD>mesontest.ML</KBD> present an
implementation of the Model Elimination (ME) proof procedure, which is even
more powerful than the classical reasoner but not generic.
<LI><KBD>InSort</KBD> and <KBD>Qsort</KBD> are correctness proofs for sorting
functions.
<LI><KBD>Primes</KBD> is a theory of the <EM>divides</EM> relation, the
greatest common divisor and Euclid's algorithm.
<LI><KBD>NatSum</KBD> demonstrates the power of permutative rewriting.
Well-known identities about summations are proved using just induction and
rewriting.
<LI><KBD>MT</KBD> is a preliminary version of Jacob Frost's coinduction
example. The full version is on the directory <KBD>ZF/Coind</KBD>.
</UL>
<HR>
<P>Last modified 6 May 1997
<ADDRESS>
<A NAME="lcp@cl.cam.ac.uk" HREF="mailto:lcp@cl.cam.ac.uk">lcp@cl.cam.ac.uk</A>
</ADDRESS>
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