%
% Things that fit absolutely nowhere else.
%
+\ifx\havemjomisc\undefined
+\def\havemjomisc{1}
-\usepackage{amsmath}
+
+\ifx\operatorname\undefined
+ \usepackage{amsopn}
+\fi
% The cardinality of a set. The |X| notation conflicts with the
% absolute value, and the meaning of card(X) is clear at once, so we
% prefer the latter.
\newcommand*{\card}[1]{ \operatorname{card} \of{{#1}} }
+
+
+\fi