src/ZF/AC/AC18_AC19.thy
author clasohm
Tue Feb 06 12:27:17 1996 +0100 (1996-02-06)
changeset 1478 2b8c2a7547ab
parent 1401 0c439768f45c
child 11317 7f9e4c389318
permissions -rw-r--r--
expanded tabs
     1 (*  Title:      ZF/AC/AC18_AC19.thy
     2     ID:         $Id$
     3     Author:     Krzysztof Grabczewski
     4 
     5 Additional definition used in the proof AC19 ==> AC1 which is a part
     6 of the chain AC1 ==> AC18 ==> AC19 ==> AC1
     7 *)
     8 
     9 AC18_AC19 = AC_Equiv +
    10 
    11 consts
    12   u_    :: i => i
    13   
    14 defs
    15 
    16   u_def "u_(a) == {c Un {0}. c:a}"
    17 
    18 end