How to slant \trianglelefteq?

Question

I wish to use this symbol in latex.

I tried looking but the closest thing I could find is \trianglelefteq but of course, the line isn't slanted. How do I slant the line?

Answer 1

For instance, stmaryrd has such a symbol.

\documentclass{article}
\usepackage{amssymb}
\usepackage{stmaryrd}
\begin{document}
\begin{tabular}{ll}
slanted: & $A\trianglelefteqslant B$ \\
normal: & $A\trianglelefteq B$\\
\end{tabular}
\end{document}

In general you can look in the comprehensive list of symbols (texdoc comprehensive) and often it is advantageous to only import one character from a different font.

Answer 2

The mathabx package provides \trianglelefteq:

\documentclass{standalone}
\usepackage{mathabx}
\begin{document}
$N \trianglelefteq G$
\end{document}