author | lcp |
Thu, 13 Apr 1995 15:38:07 +0200 | |
changeset 1048 | 5ba0314f8214 |
child 1155 | 928a16e02f9f |
permissions | -rw-r--r-- |
(* 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