nipkow [Tue, 01 Apr 2003 17:43:10 +0200] rev 13890
Made empty a translation rather than a constant.
ballarin [Tue, 01 Apr 2003 16:08:34 +0200] rev 13889
Fixed Coset.thy (proved theorem factorgroup_is_group).
paulson [Mon, 31 Mar 2003 12:29:54 +0200] rev 13888
more comments and tweaks
paulson [Mon, 31 Mar 2003 12:29:26 +0200] rev 13887
tidied
berghofe [Sat, 29 Mar 2003 12:28:53 +0100] rev 13886
Margin for pretty-printing is now a mutable reference.
paulson [Wed, 26 Mar 2003 12:25:56 +0100] rev 13885
Proofs for section 4.5.3
berghofe [Tue, 25 Mar 2003 10:03:11 +0100] rev 13884
Added show_brackets to settings menu.
berghofe [Tue, 25 Mar 2003 09:58:51 +0100] rev 13883
Re-structured some proofs in order to get rid of rule_format attribute.
berghofe [Tue, 25 Mar 2003 09:56:01 +0100] rev 13882
New theorems split_div' and mod_div_equality'.
berghofe [Tue, 25 Mar 2003 09:52:21 +0100] rev 13881
Presburger arithmetic
berghofe [Tue, 25 Mar 2003 09:50:53 +0100] rev 13880
Added examples for Presburger arithmetic.
berghofe [Tue, 25 Mar 2003 09:49:45 +0100] rev 13879
Added decision procedure for Presburger arithmetic.