src/HOL/IMPP/Natural.thy
Wed, 25 Jun 2008 22:01:34 +0200 modernized specifications;
Tue, 07 Aug 2007 20:19:55 +0200 turned Unify flags into configuration options (global only);
Wed, 11 Jul 2007 11:14:51 +0200 Adapted to new inductive definition package.
Wed, 07 Jun 2006 01:51:22 +0200 removed obsolete ML files;
Sat, 17 Sep 2005 20:14:30 +0200 converted to Isar theory format;
Mon, 31 Jan 2000 18:30:35 +0100 added IMPP to HOL