Thu, 10 Dec 2009 18:28:30 +0100 Christian Urban added Larry's theory; introduced lemma equivpI; added something to the TODO about error messages
Thu, 10 Dec 2009 16:56:03 +0100 Christian Urban added maps-printout and tuned some comments
Thu, 10 Dec 2009 14:35:06 +0100 Cezary Kaliszyk Option and Sum quotients.
(0) -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 tip