\begin{frame}
  \frametitle{Transition Function in Table Notation}
  
  \begin{exampleblock}{Example DFA}   
    \edfa\vspace{-3ex}
  \end{exampleblock}
  \bigskip
  
  \begin{goal}{}
    \emph{Hint:} transition function $\delta$ can be written in the form of a \emph{table}:
    \begin{center}
      {\renewcommand{\arraystretch}{1}
      \begin{tabular}{c|cc}
        $\delta$ & $q_0$ & $q_1$ \\
        \hline
        $a$ & $q_0$ & $q_1$ \\
        $b$ & $q_1$ & $q_0$
      \end{tabular}}
    \end{center}
  \end{goal}
\end{frame}