src/HOL/UNITY/SubstAx.thy
author paulson
Thu Oct 15 11:35:07 1998 +0200 (1998-10-15)
changeset 5648 fe887910e32e
parent 5620 3ac11c4af76a
child 6536 281d44905cab
permissions -rw-r--r--
specifications as sets of programs
     1 (*  Title:      HOL/UNITY/SubstAx
     2     ID:         $Id$
     3     Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
     4     Copyright   1998  University of Cambridge
     5 
     6 LeadsTo relation: restricted to the set of reachable states.
     7 *)
     8 
     9 SubstAx = WFair + Constrains + 
    10 
    11 constdefs
    12 
    13    LeadsTo :: "['a set, 'a set] => 'a program set"
    14     "LeadsTo A B == {F. F : leadsTo (reachable F  Int  A)
    15 	   	                    (reachable F  Int  B)}"
    16 end