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Subst/Setplus.thy
author clasohm
Wed, 02 Mar 1994 12:26:55 +0100
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(*  Title: 	Substitutions/setplus.thy
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    Author: 	Martin Coen, Cambridge University Computer Laboratory
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    Copyright   1993  University of Cambridge
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Minor additions to HOL's set theory













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*)













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Setplus = Set + 













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rules













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  ssubset_def    "A < B == A <= B & ~ A=B"













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end















Old_HOL