1 files changed, 2 insertions, 2 deletions
diff --git a/mgr.tex b/mgr.tex
index 2ff3176..0f6f97a 100644
--- a/mgr.tex
+++ b/mgr.tex
@@ -216,8 +216,8 @@ left and the right child).
 
 \subsubsection{Tree traversals}
 
-The \definedterm{post-order} of $V(T)$ is an ordering of $T$'s vertices produced
-by the following recursive procedure:
+Take a binary tree $T$. The \definedterm{post-order} of $V(T)$ is an ordering of
+$T$'s vertices produced by the following recursive procedure:
 
 \begin{enumerate}
     \item First traverse the root's subtrees.