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Subst/Setplus.thy
author clasohm
Wed, 29 Jun 1994 12:04:04 +0200
changeset 90 5c7a69cef18b
parent 0 7949f97df77a
permissions -rw-r--r--
added parentheses made necessary by change of constrain's precedence

(*  Title: 	Substitutions/setplus.thy
    Author: 	Martin Coen, Cambridge University Computer Laboratory
    Copyright   1993  University of Cambridge

Minor additions to HOL's set theory
*)

Setplus = Set + 

rules

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

end
Old_HOL