Merge pull request AllenDowney#68 from jorgelespinoza/patch-12

AllenDowney · web-flow · commit ce2933677ff5 · 2020-09-21T08:39:26.000-04:00
Delete duplicate 'does'
diff --git a/book/book.tex b/book/book.tex
@@ -16683,7 +16683,7 @@ \section{Analysis of basic Python operations}
   does Python use?  Are these algorithms stable?  You might have to
   Google around to find these answers.
 
-\item Many of the non-comparison sorts are linear, so why does does
+\item Many of the non-comparison sorts are linear, so why does
   Python use an $O(n \log n)$ comparison sort?
 
 \end{enumerate}
