Plural.

chapters/statements.tex

@@ -232,7 +232,7 @@ \subsubsection{Implicit Iteration Ranges}\label{implicit-iteration-ranges}
 \end{lstlisting}
 \end{example}
 
-There may not be assignment to the entire array inside the loop, but there may be assignment to individual elements or ranges of elements.
+There may not be assignments to the entire array inside the loop, but there may be assignments to individual elements or ranges of elements.
 The size of an array -- the iteration range -- is evaluated on entry to the \lstinline!for!-loop and the array size will thus not change during the execution of the \lstinline!for!-loop.
 
 \subsubsection{Types as Iteration Ranges}\label{types-as-iteration-ranges}