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What is the command for this enter image description here

symbol? It should be easily googlable, but I do not know the name and googling 'initial segment symbol latex' does not give any results.

user388557
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1 Answers1

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In the guide of the list of the many symbol used in LaTeX http://tug.ctan.org/info/symbols/comprehensive/symbols-a4.pdf, as suggested by the very talented users @Werner and @Bernard, the symbol of the image is \prec (see the page 48 - Table 88: Binary Relations).

Here there is a possible MWE:

enter image description here

\documentclass[a4paper,12pt]{article}
\usepackage{amssymb}
\begin{document}
$\prec$
\end{document}

PS: no vote please. Just to help the user with a MWE.

Sebastiano
  • 54,118