Mon, 30 Mar 2020 11:59:44 +0200 wenzelm clarified modules: global quasi-scope for markers;
Mon, 30 Mar 2020 10:35:10 +0200 nipkow redunant simp rule
Sun, 29 Mar 2020 23:54:00 +0100 paulson merged
Sun, 29 Mar 2020 21:30:52 +0100 paulson more ugly old proofs
Sun, 29 Mar 2020 22:30:43 +0200 wenzelm merged
Sun, 29 Mar 2020 22:30:26 +0200 wenzelm tuned;
Sun, 29 Mar 2020 22:23:33 +0200 wenzelm clarified modules;
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