0

It would be very kind of you if you helped me fix that. Thanks!

\documentclass{beamer}
\usepackage{tikz}
\usepackage[ruled,linesnumbered]{algorithm2e}

\begin{document}
\begin{frame}[t]{RPNI - example}
    $ S_+ :=\{a,b,aa\} $, $ S_- :=\{\varepsilon, ab, aab\} $\\
    
    \begin{tabular}[l | c]
        $ PTA(S_+) $
        &
        a
    \end{tabular}
\end{frame}
\end{document}
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  • Probably [l | c] needs to be {l | c }
    – daleif
    Commented Mar 14, 2022 at 15:25

1 Answer 1

3

The error message is

! LaTeX Error: Illegal character in array arg.

as you have

\begin{tabular}[l | c]

when you intended

\begin{tabular}{l | c}
3
  • I was 18 sec faster (though just a comment)
    – daleif
    Commented Mar 14, 2022 at 15:25
  • Thank you both!
    – sorry
    Commented Mar 14, 2022 at 15:26
  • 1
    @daleif I saw after I posted, but I did take at least 18 seconds to run the thing and copy the error message:-) Commented Mar 14, 2022 at 15:26

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