Addition of comparison bw lists comp, maps and filters for L16

Lectures/L16_FunctProgContinued/FunctProgContinued.tex

@@ -391,6 +391,30 @@ print(contains("happy", adjectives))
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
+\begin{frame}[fragile]
+\frametitle{Connection Between FP Topics}
+
+\begin{itemize}
+\item List comprehensions can be implemented by maps and filters
+\item All list comprehensions can be implemented via for loops
+\item Not all for loops can be implemented by a list comprehension
+\item Details
+  \href{http://treyhunner.com/2015/12/python-list-comprehensions-now-in-color/}
+{here}
+\end{itemize}
+
+\begin{verbatim}
+N = range(10)
+dbl = lambda n: n*2
+odd = lambda n: n%2==1
+list(map(dbl, filter(odd, N)))
+# versus
+[n * 2 for n in N if n % 2 == 1]
+\end{verbatim}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 \begin{frame}
 \frametitle{Homework: Index Set}
 

Lectures/L16_FunctProgContinued/FunctProgContinued.vrb

-\frametitle{Contains}
-
-\structure<1>{Write a function \texttt{contains(x, xs)} that takes a value \texttt{x} and a
-list of values \texttt{xs} and returns $\exists ( y | y \in xs : y = x)$}
-
-\begin{verbatim}
-def contains(x, xs):
-    return reduce(func?, seq?, False)
-
-adjectives = ["lazy", "grouchy", "scheming"]
-
-print(contains(4, [3, 4, 5, 6, 8]))
-print(contains("happy", adjectives))
-
-\end{verbatim}
-
-\uncover<2->{\texttt{reduce(lambda a, b: a or b, [y==x for y in xs], False)}}
-