Sat, 30 Mar 2013 18:24:33 +0100 wenzelm merged
Sat, 30 Mar 2013 17:27:21 +0100 wenzelm amended uncond_skel to observe notion of cong_name properly -- may affect simplification with Free congs;
Sat, 30 Mar 2013 17:13:21 +0100 wenzelm more formal cong_name;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip