\leftarrow & \gets & \Leftarrow & \rightharpoonup & \rightarrow \\

\to & \rightharpoondown & \Rightarrow & \leadsto & \leftrightarrow \\

\uparrow & \Leftrightarrow & \Uparrow & \mapsto & \downarrow \\

\Downarrow & \leftharpoonup & \updownarrow & \leftharpoondown & \Updownarrow \\

\rightleftharpoons & \nearrow & \longleftarrow & \searrow & \Longleftarrow \\

\swarrow & \longrightarrow & \nwarrow & \Longrightarrow & \longleftrightarrow \\

\Longleftrightarrow & \longmapsto & \hookrightarrow & \hookleftarrow

} \right ]