Tue, 18 Jan 2011 06:55:18 +0100 Christian Urban modified the renaming_perm lemmas
Mon, 17 Jan 2011 17:20:21 +0100 Christian Urban added a translation function from lambda-terms to deBruijn terms (equivariance fails at the moment)
(0) -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 tip