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
     1 (*  Title:      Substitutions/setplus.thy
     2     Author:     Martin Coen, Cambridge University Computer Laboratory
     3     Copyright   1993  University of Cambridge
     4 
     5 Minor additions to HOL's set theory
     6 *)
     7 
     8 Setplus = Set + 
     9 
    10 rules
    11 
    12   ssubset_def    "A < B == A <= B & ~ A=B"
    13 
    14 end