src/HOL/Subst/Setplus.thy
author clasohm
Wed Mar 13 11:55:25 1996 +0100 (1996-03-13 ago)
changeset 1574 5a63ab90ee8a
parent 1476 608483c2122a
permissions -rw-r--r--
modified primrec so it can be used in MiniML/Type.thy
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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