Tue, 11 Feb 2020 15:39:05 +0100 wenzelm updated for release;
Tue, 11 Feb 2020 12:55:35 +0000 paulson some lemmas about the lex ordering on lists, etc.
Mon, 10 Feb 2020 23:04:45 +0100 wenzelm proper symbols;
Mon, 10 Feb 2020 22:47:43 +0100 wenzelm NEWS;
Mon, 10 Feb 2020 22:40:00 +0100 wenzelm recover from Unicode accident in 4abd07cd034f;
Mon, 10 Feb 2020 22:33:03 +0100 wenzelm updated for release;
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