Sun, 03 Nov 2019 20:38:08 +0100 wenzelm expose derivations more thoroughly, notably for locale/class reasoning;
Sun, 03 Nov 2019 19:43:59 +0100 wenzelm clarified errors;
Sun, 03 Nov 2019 18:55:35 +0100 wenzelm determine proof boxes from exported proof (NB: thm_boxes is not sufficient due to OfClass proofs);
Sun, 03 Nov 2019 18:53:48 +0100 wenzelm more operations;
Sun, 03 Nov 2019 16:20:05 +0100 wenzelm tuned whitespace;
Sun, 03 Nov 2019 16:01:39 +0100 wenzelm more robust;
Sun, 03 Nov 2019 15:48:59 +0100 wenzelm clarified modules;
Sun, 03 Nov 2019 15:45:46 +0100 wenzelm clarified signature -- more options;
Sun, 03 Nov 2019 10:29:01 +0000 paulson merged
Sat, 02 Nov 2019 21:42:45 +0000 paulson moved line segments to Convex_Euclidean_Space
Sat, 02 Nov 2019 23:43:08 +0100 wenzelm proper theory for export_proofs;
Sat, 02 Nov 2019 23:13:15 +0100 wenzelm tuned signature;
Sat, 02 Nov 2019 20:52:24 +0000 paulson merged
Sat, 02 Nov 2019 20:51:54 +0000 paulson just tidied one proof
Sat, 02 Nov 2019 20:56:22 +0100 wenzelm proper graph traversal -- avoid exponential blowup (amending 71d1971d67ad);
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