Thu, 19 Dec 2019 16:16:49 +0100 wenzelm clarified backup;
Thu, 19 Dec 2019 15:55:52 +0100 wenzelm removed somewhat pointless option -R: more careful inspection of hgrc is required in practice;
Thu, 19 Dec 2019 15:29:48 +0100 wenzelm proper proof body context for Simplifier plugins (solvers, loopers, ...) -- avoid crash due to Subgoal.FOCUS (before e58bc223f46c);
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