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--
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(*  Title:      ZF/AC/AC18_AC19.thy
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    ID:         $Id$
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    Author:     Krzysztof Grabczewski
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Additional definition used in the proof AC19 ==> AC1 which is a part
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of the chain AC1 ==> AC18 ==> AC19 ==> AC1
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*)
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AC18_AC19 = AC_Equiv +
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consts
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  u_    :: i => i
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defs
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  u_def "u_(a) == {c Un {0}. c:a}"
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end