\documentclass{standalone}
\input{common-headers}
\input{sigles}
\begin{document}
% Fermeture de S (pareil)
\begin{tikzpicture}
  \input{operateurs}

  \draw[1cell] (A.corner 1) -- (A.corner 2);
  \draw[1cell] (A.corner 2) -- (A.corner 3);
  \draw[1cell] (A.corner 3) -- (A.corner 4);
  \draw[1cell] (A.corner 4) -- (A.corner 5);
  \draw[1cell] (A.corner 5) -- (A.corner 6);
  \draw[1cell] (A.corner 6) -- (A.corner 1);

  \node[0cell] (a1) at (A.corner 1) {};
  \node[0cell] (a2) at (A.corner 2) {};
  \node[0cell] (a3) at (A.corner 3) {};
  \node[0cell] (a4) at (A.corner 4) {};
  \node[0cell] (a5) at (A.corner 5) {};
  \node[0cell] (a6) at (A.corner 6) {};
\end{scope}
\end{tikzpicture}
\end{document}