src/HOL/IMPP/Natural.thy
2011-01-16 wenzelm 2011-01-16 tuned headers;
2010-09-06 wenzelm 2010-09-06 more antiquotations;
2008-06-25 wenzelm 2008-06-25 modernized specifications;
2007-08-07 wenzelm 2007-08-07 turned Unify flags into configuration options (global only);
2007-07-11 berghofe 2007-07-11 Adapted to new inductive definition package.
2006-06-07 wenzelm 2006-06-07 removed obsolete ML files;
2005-09-17 wenzelm 2005-09-17 converted to Isar theory format;
2000-01-31 oheimb 2000-01-31 added IMPP to HOL