2009-10-20 haftmann 2009-10-20 replaced old_style infixes eq_set, subset, union, inter and variants by generic versions
2009-10-17 wenzelm 2009-10-17 tuned signature; observe coding conventions of this file;
2009-10-15 wenzelm 2009-10-15 replaced String.concat by implode; replaced String.concatWith by space_implode; replaced (Seq.flat o by Seq.maps; replaced List.mapPartial by map_filter; replaced List.concat by flat; replaced (flat o map) by maps, which produces less garbage;
2009-10-09 haftmann 2009-10-09 dropped simproc_dist formally
2009-09-28 wenzelm 2009-09-28 moved generic cong_tac from HOL/Tools/datatype_aux.ML to Tools/cong_tac.ML, proper subgoal selection (failure, not exception);
2009-09-28 haftmann 2009-09-28 avoid compound fields in datatype info record
2009-09-27 haftmann 2009-09-27 more appropriate order of field in dt_info
2009-09-27 haftmann 2009-09-27 registering split rules and projected induction rules; ML identifiers more close to Isar theorem names
2009-07-21 haftmann 2009-07-21 dropped ancient flat_names option
2009-06-23 haftmann 2009-06-23 uniformly capitialized names for subdirectories