diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex
index f7db943..761acd3 100644
--- a/Doc/lib/libstdtypes.tex
+++ b/Doc/lib/libstdtypes.tex
@@ -547,8 +547,8 @@
 \end{methoddesc}
 
 \begin{methoddesc}[string]{endswith}{suffix\optional{, start\optional{, end}}}
-Return true if the string ends with the specified \var{suffix},
-otherwise return false.  With optional \var{start}, test beginning at
+Return \code{True} if the string ends with the specified \var{suffix},
+otherwise return \code{False}.  With optional \var{start}, test beginning at
 that position.  With optional \var{end}, stop comparing at that position.
 \end{methoddesc}
 
@@ -678,8 +678,8 @@
 
 \begin{methoddesc}[string]{startswith}{prefix\optional{,
                                        start\optional{, end}}}
-Return true if string starts with the \var{prefix}, otherwise
-return false.  With optional \var{start}, test string beginning at
+Return \code{True} if string starts with the \var{prefix}, otherwise
+return \code{False}.  With optional \var{start}, test string beginning at
 that position.  With optional \var{end}, stop comparing string at that
 position.
 \end{methoddesc}