X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=blobdiff_plain;f=mjo-topology.tex;fp=mjo-topology.tex;h=c7f50373ad8e98320f25088b2644e72828c1195b;hp=885f3390ae0aee177391ac1584070704261ca962;hb=fc7cfa7f3d02715cb09eae2e1c6bc501dc2d8d50;hpb=d4712abb88a2f342f31bbd60426d1a983df05ac2

diff --git a/mjo-topology.tex b/mjo-topology.tex
index 885f339..c7f5037 100644
--- a/mjo-topology.tex
+++ b/mjo-topology.tex
@@ -1,6 +1,9 @@
 %
 % Standard topological operations.
 %
+\ifx\havemjotopology\undefined
+\def\havemjotopology{1}
+
 
 % Needed for \operatorname.
 \usepackage{amsopn}
@@ -15,3 +18,6 @@
 
 % And the ``boundary of'' operator.
 \newcommand*{\boundary}[1]{ \operatorname{bdy}\of{{#1}} }
+
+
+\fi