\begin{block}{Vector notation racket}
\begin{lstlisting}
#(4 42 1 0)
-
(make-vector 4)
\end{lstlisting}
\end{block}
\end{block}
\end{frame}
+\begin{frame}
+ \frametitle{Implementation (3)}
+ Only vector examples given\\
+ Very complex examples
+\end{frame}
+
\begin{frame}
\frametitle{Evidence}
\begin{itemize}