diff --git a/app/views/wiki/tex.rhtml b/app/views/wiki/tex.rhtml
index 2f2e5e52..9edf7a7b 100644
--- a/app/views/wiki/tex.rhtml
+++ b/app/views/wiki/tex.rhtml
@@ -11,6 +11,16 @@
 %----Macros----------
 \newcommand{\gt}{>}
 \newcommand{\lt}{<}
+\newcommand{\darr}{\downarrow}
+\newcommand{\nearr}{\nearrow}
+\newcommand{\nwarr}{\nwarrow}
+\newcommand{\searr}{\searrow}
+\newcommand{\swarr}{\swarrow}
+\newcommand{\iff}{\Longleftrightarrow}
+\newcommand{\impliedby}{\Leftarrow}
+\newcommand{\map}{\mapsto}
+\newcommand{\embedsin}{\hookrightarrow}
+\newcommand{\implies}{\Rightarrow}
 \newcommand{\qed}{\blacksquare}
 
 %-------------------------------------------------------------------