less than sign(s)

LaTeX less than signs

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less than

If a is less than b you could wrote a < b just use the normal char < ; if a is much less than b then a « b where « would be the command \ll; and finally if a is very small compared with b then you could use the \lll command which requires usepackage amssymb.

example

\documentclass{article}
\begin{document}
\ \\
a less than b \\
$a < b $ \\
a much less than b \\
$a \ll b $ \\
\end{document}
Output:

example very much less than

\documentclass{article}
\usepackage{amssymb}
\begin{document}
\ \\
a less than b \\
$a < b $ \\
a much less than b \\
$a \ll b $ \\
a very much less than b \\
$a \lll b$\\
\end{document}

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