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    53   | 
    53   | 
    54 \end{frame} | 
    54 \end{frame} | 
    55 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%       | 
    55 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%       | 
    56   | 
    56   | 
    57 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    57 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    58 \begin{frame}[c] | 
    58 %\begin{frame}[c] | 
    59 \frametitle{Scala Book, Exams} | 
    59 %\frametitle{Scala Book, Exams} | 
    60   | 
    60 %  | 
    61 \begin{itemize} | 
    61 %\begin{itemize} | 
    62 \item \small https://nms.kcl.ac.uk/christian.urban/ProgInScala2ed.pdf\normalsize  | 
    62 %\item \small https://nms.kcl.ac.uk/christian.urban/ProgInScala2ed.pdf\normalsize  | 
    63 \item homework (written exam 80\%)  | 
    63 %\item homework (written exam 80\%)  | 
    64 \item coursework (20\%)\bigskip  | 
    64 %\item coursework (20\%)\bigskip  | 
    65 \item short survey at KEATS; to be answered until Sunday      | 
    65 %\item short survey at KEATS; to be answered until Sunday      | 
    66 \end{itemize} | 
    66 %\end{itemize} | 
    67   | 
    67   | 
    68 \end{frame} | 
    68 %\end{frame} | 
    69 %%%%%%%%%%%  | 
    69 %%%%%%%%%%%  | 
    70   | 
    70   | 
    71   | 
    71   | 
    72   | 
    72   | 
    73 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    73 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    90     | 
    90     | 
    91 \end{frame} | 
    91 \end{frame} | 
    92 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     | 
    92 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     | 
    93   | 
    93   | 
    94 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    94 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  | 
    95 \begin{frame}[c] | 
    95 \begin{frame}[t] | 
    96 \frametitle{Negation} | 
    96 \frametitle{Negation} | 
    97   | 
    97   | 
    98 Assume you have an alphabet consisting of the letters \bl{$a$}, \bl{$b$} and \bl{$c$} only. | 
    98 Assume you have an alphabet consisting of the letters \bl{$a$}, \bl{$b$} and \bl{$c$} only. | 
    99 Find a (basic!) regular expression that matches all strings \emph{\alert{except}}  | 
    99 Find a (basic!) regular expression that matches all strings \emph{\alert{except}}  | 
   100 \bl{$ab$} and \bl{$ac$}! | 
   100 \bl{$ab$} and \bl{$ac$}! |