0

I am looking for a symbol which exactly looks like \lhd, except that the inner is filled.

Note: We have\blacktriangleleft, but the shape is different.

I used detexify, but didn't find a suitable symbol.

1
  • 1
    Maybe you can use \triangleleft instead of \lhd to match the filled version.
    – Marijn
    Nov 20 '20 at 9:36
3

With amssymb, \lhd and \blacktriangleleft have the same shape.

\documentclass{article}
\usepackage{amsmath,amssymb}

\usepackage{xcolor}

\begin{document}

${\lhd}{\blacktriangleleft}$

${\blacktriangleleft}{\lhd}$

\makebox[0pt][l]{\color{red}${\lhd}$}%
${\blacktriangleleft}$
\makebox[0pt][l]{\color{red}${\blacktriangleleft}$}%
${\lhd}$

\makebox[0pt][l]{${\lhd}$}%
\textcolor{red}{${\blacktriangleleft}$}
\makebox[0pt][l]{${\blacktriangleleft}$}%
\textcolor{red}{${\lhd}$}

\sbox0{$\lhd$}\the\wd0\ \the\ht0\ \the\dp0

\sbox0{$\blacktriangleleft$}\the\wd0\ \the\ht0\ \the\dp0

\end{document}

enter image description here

Remember, though, that \lhd is a binary operation symbol; if you want to use the glyph as a relation symbol, do something like

\newcommand{\lhdrel}{\mathrel\lhd}

and use \lhdrel (any name is good, of course).

2
  • I have a complicated document with lots of packages, only after adding the package amsfonts, the size and the shape of \lhd and \blacktriangleleft became the same.
    – Name
    Nov 20 '20 at 10:55
  • @Name That's what MWE (minimal examples that reproduce the issue) are recommended when you ask a question.
    – egreg
    Nov 20 '20 at 10:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.