diff -r 08bbcf3ec4d2 -r db91d0a8ed75 text/comm_alg.tex
--- a/text/comm_alg.tex	Wed Oct 28 21:59:38 2009 +0000
+++ b/text/comm_alg.tex	Fri Oct 30 04:05:33 2009 +0000
@@ -1,6 +1,7 @@
 %!TEX root = ../blob1.tex
 
 \section{Commutative algebras as $n$-categories}
+\label{sec:comm_alg}
 
 \nn{this should probably not be a section by itself.  i'm just trying to write down the outline 
 while it's still fresh in my mind.}