Added theorems True_not_False and False_not_True
(for rep_datatype).
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<H1>Type Inference for MiniML (without <tt>let</tt>)</H1>
This theory defines the type inference rules and the type inference algorithm
<em>W</em> for simply-typed lambda terms due to Milner. It proves the
soundness and completeness of <em>W</em> w.r.t. to the rules. An optimized
version <em>I</em> is shown to implement <em>W</em>.
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A report describing the theory is found here:<br>
<A HREF = "http://www4.informatik.tu-muenchen.de/~nipkow/pubs/tphol96.html">
Formal Verification of Algorithm W: The Monomorphic Case</A>.
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<B>NOTE:</B> This theory has been superseded by a more recent development
which formalizes type inference for a language including <tt>let</tt>. For
details click <A HREF="../MiniML/index.html">here</A>.
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