Thu, 09 May 2013 18:16:36 +0100 added lemmas about a pairing function
Christian Urban <christian dot urban at kcl dot ac dot uk> [Thu, 09 May 2013 18:16:36 +0100] rev 250
added lemmas about a pairing function
(0) -100 -30 -10 -1 +1 +10 +30 tip