Mon, 18 Apr 2016 20:24:19 +0200 wenzelm prefer internal attribute source;
Mon, 18 Apr 2016 16:50:19 +0100 paulson tidying some proofs; getting rid of "nonempty_witness"
Mon, 18 Apr 2016 15:51:48 +0100 paulson Merge
Mon, 18 Apr 2016 15:40:55 +0100 paulson numerous theorems about affine hulls, hyperplanes, etc.
Mon, 18 Apr 2016 15:41:08 +0200 wenzelm merged
Mon, 18 Apr 2016 15:40:41 +0200 wenzelm proper LaTeX;
Mon, 18 Apr 2016 15:13:46 +0200 wenzelm tuned;
Mon, 18 Apr 2016 14:47:27 +0200 wenzelm clarified bindings;
Mon, 18 Apr 2016 14:30:24 +0200 wenzelm clarified bindings;
Mon, 18 Apr 2016 14:26:42 +0200 wenzelm tuned;
Mon, 18 Apr 2016 14:26:21 +0200 wenzelm tuned;
Mon, 18 Apr 2016 11:02:07 +0200 wenzelm avoid clash with function called "x";
Mon, 18 Apr 2016 14:30:32 +0100 paulson new theorems about convex hulls, etc.; also, renamed some theorems
Sun, 17 Apr 2016 22:38:50 +0200 wenzelm clarified bindings;
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