Thu, 07 Jul 1994 19:22:49 +0200 nipkow changed priority of ::
Wed, 06 Jul 1994 14:39:32 +0200 wenzelm exported opt_infix, opt_mixfix parsers;
Wed, 06 Jul 1994 12:51:27 +0200 wenzelm added raw_unify;
Wed, 06 Jul 1994 12:49:56 +0200 wenzelm various minor changes (names and comments);
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