Put in minimal simpset to avoid excessive simplification,
just as in revision 1.9 of HOL/indrule.ML
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<H2>IMP --- A <KBD>WHILE</KBD>-language and its Semantics</H2>
The denotational, operational, and axiomatic semantics, a verification
condition generator, and all the necessary soundness, completeness and
equivalence proofs. Essentially a formalization of the first 100 pages
of
<PRE>
@book{Winskel, author = {Glynn Winskel},
title = {The Formal Semantics of Programming Languages},
publisher = {MIT Press}, year = 1993}
</PRE>
<P>
An eminently readable description of this theory is found
<A HREF="http://www4.informatik.tu-muenchen.de/~nipkow/pubs/imp.html">
here</A>.
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