<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><HTML><HEAD><TITLE>CTT/README</TITLE></HEAD><BODY><H2>CTT: Constructive Type Theory</H2>This directory contains the ML sources of the Isabelle system forConstructive Type Theory (extensional equality, no universes).<p>The <tt>ex</tt> subdirectory contains some examples.<p>Useful references on Constructive Type Theory:<UL><LI> B. Nordstrm, K. Petersson and J. M. Smith,<BR> Programming in Martin-Lf's Type Theory<BR> (Oxford University Press, 1990)<LI> Simon Thompson,<BR> Type Theory and Functional Programming (Addison-Wesley, 1991)</UL></BODY></HTML>