src/ZF/UNITY/Union.thy
Thu, 15 Nov 2001 15:07:16 +0100 ehmety *** empty log message ***
Fri, 09 Nov 2001 00:09:47 +0100 wenzelm eliminated old "symbols" syntax, use "xsymbols" instead;
Wed, 08 Aug 2001 14:33:10 +0200 paulson new ZF/UNITY theory
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