(\not =)
(\equiv)
(\leq)
(\le)
(\geq)
(\ge)
(\ll)
(\gg)
(\doteq)
(\sim)
(\gtrless)
(\lessgtr)
(\prec)
(\succ)
(\preceq)
(\succeq)
(\simeq)
(\approx)
(\in)
(\ni)
(\owns)
(\cong)
(\asymp)
(\subset)
(\supset)
(\subseteq)
(\supseteq)
(\sqsubseteq)
(\sqsupseteq)
(\Join)
(\bowtie)
(\propto)
(\vdash)
(\dashv)
(\models)
(\mid)
(\parallel)
(\mid)
(\parallel)
(\perp)
(\smile)
(\frown)
(\notin)
(\neq)
(\ne)
(\ae)
(\oe)
\begin{array}{ l| c| r }
1 & 2 & 3 \\ \hline
40 & 50 & 60 \\ \hline
700 & 800 & 900
\end{array}<img src="http://www.forkosh.com/mathtex.cgi?
\usepackage{amscd} \begin{CD}
K^n @>>> K^m\\
@AAA @AAA \\
V @>>> V \\
@VVV @VVV \\
K^n @>>> K^m
\end{CD}
">
