mjo-algebra.tex: fix glossary sorting of \variety

[mjotex.git] / mjo-topology.tex

diff --git a/mjo-topology.tex b/mjo-topology.tex
index c7f50373ad8e98320f25088b2644e72828c1195b..040a432b5b6c48926b9c2af15eefbe949edc23a0 100644 (file)
--- a/mjo-topology.tex
+++ b/mjo-topology.tex
@@ -5,10 +5,11 @@
 \def\havemjotopology{1}
 
 
-% Needed for \operatorname.
-\usepackage{amsopn}
+\ifx\operatorname\undefined
+  \usepackage{amsopn}
+\fi
 
-\input{mjo-common}
+\input{mjo-common} % for \of, at least
 
 % The ``interior of'' operator.
 \newcommand*{\interior}[1]{ \operatorname{int}\of{{#1}} }