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<HTML><HEAD><TITLE>Cube/README</TITLE></HEAD><BODY>
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<H2>Cube: Barendregt's Lambda-Cube</H2>
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This directory contains the ML sources of the Isabelle system for the
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Lambda-Cube.<p>
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The <tt>ex</tt> subdirectory contains some examples.<p>
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NB: the formalization is not completely sound!  It does not enforce
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distinctness of variable names in contexts!<P>
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For more information about the Lambda-Cube, see
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<UL>
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<LI>H. Barendregt<BR>
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    Introduction to Generalised Type Systems<BR>
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    J. Functional Programming
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</UL>
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</BODY>
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</HTML>
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