Graph

less more | at revision 50: (0) -30 -10 -2 +2 +10 +30 tip

Move all the graphviz code into its own file
Mon, 21 Nov 2016 15:33:17 +0000, by Steve Losh
Stratify rules according to negations
Sun, 20 Nov 2016 15:33:06 +0000, by Steve Losh

less more | at revision 50: (0) -30 -10 -2 +2 +10 +30 tip