Tue, 14 Jul 2015 19:01:46 +0200 wenzelm more aggressive compaction of multi-goal proof terms (see also a8babbb6d5ea, 4dd0ba632e40);
Tue, 14 Jul 2015 11:29:43 +0200 wenzelm normalize proof before splitting conjunctions, according to Proof.conclude_goal (see also 4dd0ba632e40) -- may reduce general resource usage;
Tue, 14 Jul 2015 13:48:03 +0200 hoelzl generalized filtermap_homeomorph to filtermap_fun_inverse; add eventually_at_top/bot_not_equal
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