thys/Positions.thy
Sun, 27 Aug 2017 00:03:31 +0300 Christian Urban simplified proof
Fri, 25 Aug 2017 23:52:49 +0200 Christian Urban updated
Fri, 25 Aug 2017 15:05:20 +0200 Christian Urban updated
Fri, 18 Aug 2017 14:51:29 +0100 Christian Urban updated
less more (0) -10 -4 tip