--- a/text/appendixes/comparing_defs.tex	Mon Dec 12 16:32:10 2011 -0800
+++ b/text/appendixes/comparing_defs.tex	Mon Dec 12 19:26:57 2011 -0800
@@ -932,6 +932,7 @@
 \begin{align*}
 \mathfig{0.4}{triangle/triangle4a} \\
 \mathfig{0.4}{triangle/triangle4b} \\
+u & =
 \mathfig{0.4}{triangle/triangle4c} 
 \end{align*}
 \nn{remember to change `assoc' to $\alpha$}