%% 
%%  An UIT Edition example
%% 
%%  Example 07-16-2 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}}
\StartShownPreambleCommands
\usepackage{lmodern,mathtools}
\StopShownPreambleCommands
\begin{document}
\renewcommand{\arraystretch}{1.2}
\begin{tabular}{@{}r@{\kern3pt}lr@{\kern3pt}lr@{\kern3pt}lr@{\kern3pt}ll@{}}
\mathsymbol{Colonapprox}  \mathsymbol{coloneq}   \mathsymbol{Eqcolon}
\mathsymbol{colonapprox}\\  \mathsymbol{colonsim}  \mathsymbol{eqqcolon}
\mathsymbol{coloneqq}     \mathsymbol{Colonsim}\\  \mathsymbol{Eqqcolon}
\mathsymbol{Coloneqq}     \mathsymbol{dblcolon}
\mathsymbol{Coloneq} \\     \mathsymbol{eqcolon}
\end{tabular}
\end{document}