diff -r 3a535de22816 -r da2320360f12 slides/slides04.tex
--- a/slides/slides04.tex	Tue Oct 19 22:51:51 2021 +0100
+++ b/slides/slides04.tex	Wed Oct 20 00:06:58 2021 +0100
@@ -1665,9 +1665,13 @@
 \end{mybox3}
 \end{frame}
 
-\begin{frame}<1-12>[c]
+\begin{frame}<1-18>[c]
 \end{frame}
 
+
+
+\end{document}
+
 \begin{frame}[c]
   \small
   \begin{itemize}
@@ -1724,8 +1728,6 @@
   \end{center}
 \end{frame}
 
-\end{document}
-
 %%% Local Variables:  
 %%% mode: latex
 %%% TeX-master: t