%% 
%%  An UIT Edition example
%% 
%%  Example 07-16-1 on page 148.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{exasymbol}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\def\mathSymbol#1#2{ $ \csname#1\endcsname{#2} $ & \small\Lcs{#1}\{#2\} &}
\StartShownPreambleCommands
\usepackage{lmodern,mathtools}
\StopShownPreambleCommands
\begin{document}
\renewcommand{\arraystretch}{1.5}
\begin{tabular}{@{}r@{\kern3pt}lr@{\kern3pt}ll@{}}
\mathSymbol{overbrace}{abc}    \mathSymbol{underbrace}{abc}  \\
\mathSymbol{overbracket}{abc}  \mathSymbol{underbracket}{abc} \\
\mathSymbol{xhookleftarrow}{abc}    \mathSymbol{xleftrightharpoons}{abc} \\
\mathSymbol{xhookrightarrow}{abc}   \mathSymbol{xmapsto}{abc}   \\
\mathSymbol{xLeftarrow}{abc}        \mathSymbol{xRightarrow}{abc}               \\
\mathSymbol{xleftharpoondown}{abc}  \mathSymbol{xrightharpoondown}{abc}   \\
\mathSymbol{xleftharpoonup}{abc}    \mathSymbol{xrightharpoonup}{abc}       \\
\mathSymbol{xleftrightarrow}{abc}   \mathSymbol{xrightleftharpoons}{abc}\\
\mathSymbol{xLeftrightarrow}{abc}
\end{tabular}
\end{document}