src/HOL/Subst/ROOT.ML
author kleing
Mon, 19 Apr 2004 09:31:00 +0200
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(*  Title:      HOL/Subst/ROOT.ML
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    ID:         $Id$
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    Authors:     Martin Coen, Cambridge University Computer Laboratory
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                 Konrad Slind, TU Munich
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    Copyright   1993  University of Cambridge,
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                1996  TU Munich
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Substitution and Unification in Higher-Order Logic. 
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Implements Manna & Waldinger's formalization, with Paulson's simplifications,
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and some new simplifications by Slind.
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Z Manna & R Waldinger, Deductive Synthesis of the Unification Algorithm. 
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SCP 1 (1981), 5-48
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L C Paulson, Verifying the Unification Algorithm in LCF. SCP 5 (1985), 143-170
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AList        -  association lists
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UTerm        -  data type of terms
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Subst        -  substitutions
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Unifier      -  specification of unification and conditions for 
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                correctness and termination
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Unify        -  the unification function
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*)
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time_use_thy "Unify";