Use missing amssymb package in mjo-cone.

diff --git a/mjo-cone.tex b/mjo-cone.tex
index 2981439045a8e78bb134f79379b7ce2c613b4e42..16d16546f3f0294e9a50febd00a07d4ab936b4c7 100644 (file)
--- a/mjo-cone.tex
+++ b/mjo-cone.tex
@@ -5,6 +5,8 @@
 % sets other than cones, but nobody cares.
 %
 
+\usepackage{amssymb} % \succcurlyeq and friends
+
 \input{mjo-common}
 
 % The set of all S-operators on its argument.