Index: 2_topo.html
===================================================================
--- 2_topo.html	(revision 900)
+++ 2_topo.html	(revision 901)
@@ -158,4 +158,6 @@
 	     parent state; if so, this is likely an oscillation (TODO:
 	     draw an ex_ for this and link it from here!); this state is invalid
 	     and should be discarded
+	<li> always choose the first conflict on a two-net to resolve, since this
+	     may resolve further conflicts automatically; see section 4.1.2.
 </ul>