Wed, 05 Dec 2001 03:14:22 +0100 wenzelm added 'sym' and 'symmetric' atts;
Wed, 05 Dec 2001 03:13:57 +0100 wenzelm removed bang_args;
Wed, 05 Dec 2001 03:13:21 +0100 wenzelm 'symmetric' attribute moved to Pure/calculation.ML;
Wed, 05 Dec 2001 03:12:52 +0100 wenzelm simplified (and clarified) integration with Pure/ContextRules;
Wed, 05 Dec 2001 03:11:05 +0100 wenzelm iff?: refer to Pure/ContextRules;
Wed, 05 Dec 2001 03:10:06 +0100 wenzelm ContextRules.intro_bang_global;
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