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

[mjotex.git] / mjo-topology.tex

diff --git a/mjo-topology.tex b/mjo-topology.tex
index 885f3390ae0aee177391ac1584070704261ca962..040a432b5b6c48926b9c2af15eefbe949edc23a0 100644 (file)
--- a/mjo-topology.tex
+++ b/mjo-topology.tex
@@ -1,11 +1,15 @@
 %
 % Standard topological operations.
 %
+\ifx\havemjotopology\undefined
+\def\havemjotopology{1}
 
-% Needed for \operatorname.
-\usepackage{amsopn}
 
-\input{mjo-common}
+\ifx\operatorname\undefined
+  \usepackage{amsopn}
+\fi
+
+\input{mjo-common} % for \of, at least
 
 % The ``interior of'' operator.
 \newcommand*{\interior}[1]{ \operatorname{int}\of{{#1}} }
@@ -15,3 +19,6 @@
 
 % And the ``boundary of'' operator.
 \newcommand*{\boundary}[1]{ \operatorname{bdy}\of{{#1}} }
+
+
+\fi