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HOL: Higher-Order Logic
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This directory contains the Standard ML sources of the Isabelle system for
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Higher-Order Logic. Important files include
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ROOT.ML -- loads all source files. Enter an ML image containing Pure
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Isabelle and type: use "ROOT.ML";
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Makefile -- compiles the files under Poly/ML or SML of New Jersey
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ex -- subdirectory containing examples. To execute them, enter an ML image
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containing HOL and type: use "ex/ROOT.ML";
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Subst -- subdirectory defining a theory of substitution and unification.
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Useful references on Higher-Order Logic:
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P. B. Andrews,
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An Introduction to Mathematical Logic and Type Theory
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(Academic Press, 1986).
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J. Lambek and P. J. Scott,
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Introduction to Higher Order Categorical Logic (CUP, 1986)
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