Thu, 19 Mar 2009 11:44:34 +0100 wenzelm added map_contexts (cf. Proof.map_contexts);
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip