Sun, 16 Jul 2000 20:53:19 +0200 wenzelm more robust tuple syntax (still improper, though!);
Sun, 16 Jul 2000 20:52:43 +0200 wenzelm improved unit theory: unit_all_eq1, unit_all_eq2, split_all_tac;
Sun, 16 Jul 2000 20:51:19 +0200 wenzelm added syntax for proper / improper selector functions;
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