9

I am trying to represent the calculus of relations, from Tarski's paper. How do I represent the following following ? SideNote: I did go through http://math.mit.edu/~dspivak/files/symbols-all.pdf and https://www.rpi.edu/dept/arc/training/latex/LaTeX_symbols.pdf and anyother document I could find.

17

The only challenging one is the fourth in the list.

\documentclass{article}
\usepackage{amsmath}

\begin{document}

\[
\langle \cdot,\bullet^{-},\cup,\mathbin{{\bullet}{\breve{\phantom{\imath}}}},1\rangle
\]

\end{document}

Of course you want to make a new command for it.

enter image description here

  • Yes, I agree. May I know how you figured it out, other than years of practice and familiarity? Any references would be welcome. – GermanShepherd Dec 2 '18 at 17:38
  • 3
    @GermanShepherd texdoc comprehensive from a terminl or texdoc.net/texmf-dist/doc/latex/comprehensive/symbols-a4.pdf For the complicated one, practice in solving similar problems. – egreg Dec 2 '18 at 17:40
  • Please, could you explain why did you use \mathbin? – Sigur Dec 2 '18 at 17:41
  • @Sigur From the standard usages, I guess it is an operation symbol. – egreg Dec 2 '18 at 17:42
  • Ah, ok. I supposed it could be to get some appropriate positioning. So, the same for the 2nd one?! – Sigur Dec 2 '18 at 17:43
1

I don't have the reputation to comment, but this website has been very helpful. It allows you to draw a symbol and it does a reverse search of Latex commands.

http://detexify.kirelabs.org/classify.html

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