Mon, 08 Aug 2011 17:23:15 +0200 wenzelm misc tuning -- eliminated old-fashioned rep_thm;
Mon, 08 Aug 2011 16:38:59 +0200 wenzelm modernized strcture Proof_Checker;
Mon, 08 Aug 2011 16:09:34 +0200 wenzelm less ambitious use of AttributedString, for proper caret painting within \<^sup>\<foobar>;
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