1

I'd like to draw a turnstile with an arrow. It looks like what is shown in the picture. Is there any command for it?

enter image description here

1

You could build one from a regular \vdash turnstile.

enter image description here

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{graphicx}
\newcommand{\turnstile}{%
    \mathrel{%
        \vdash\hspace*{-5pt}%
        \raisebox{2.65pt}{\scalebox{.33}{\(\blacktriangleright\)}}%
    }%
}
\begin{document}
\( \Gamma \turnstile t : T \)
\end{document}
  • Thanks a lot. This is exactly what I want. – user707499 Apr 15 '20 at 15:19

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