Typo fixes

diff --git a/Doc/lib/libcollections.tex b/Doc/lib/libcollections.tex
index 84cc507cb8de2343907fc482151bf74e90b387b8..e6aa228ae4885d35269f5af33640078c90fad1ca 100644 (file)
--- a/Doc/lib/libcollections.tex
+++ b/Doc/lib/libcollections.tex
@@ -56,12 +56,12 @@ Deque objects support the following methods:
 
 \begin{methoddesc}{pop}{}
    Remove and return an element from the right side of the deque.
-   If no elements are present, raises a \exception{IndexError}.
+   If no elements are present, raises an \exception{IndexError}.
 \end{methoddesc}
 
 \begin{methoddesc}{popleft}{}
    Remove and return an element from the left side of the deque.
-   If no elements are present, raises a \exception{IndexError}.   
+   If no elements are present, raises an \exception{IndexError}.   
 \end{methoddesc}
 
 \begin{methoddesc}{rotate}{n}