src/ZF/Resid/Confluence.thy
author wenzelm
Tue, 28 Oct 1997 17:36:16 +0100
changeset 4022 0770a19c48d3
parent 1478 2b8c2a7547ab
child 11319 8b84ee2cc79c
permissions -rw-r--r--
added ignored_consts, thms_containing, add_store_axioms(_i), add_store_defs(_i), thms_of; tuned pure thys;

(*  Title:      Confluence.thy
    ID:         $Id$
    Author:     Ole Rasmussen
    Copyright   1995  University of Cambridge
    Logic Image: ZF
*)

Confluence = Reduction+

consts
  confluence    :: i=>o
  strip         :: o

defs
  confluence_def "confluence(R) ==   
                  ALL x y. <x,y>:R --> (ALL z.<x,z>:R -->   
                                         (EX u.<y,u>:R & <z,u>:R))"
  strip_def      "strip == ALL x y. (x ===> y) --> (ALL z.(x =1=> z) -->   
                                         (EX u.(y =1=> u) & (z===>u)))" 
end