And by Exact Ancestors $D \le L \equiv D \le B$.
So $D \isin B \equiv D \le B$. $\qed$
+\subsection{Foreign Contents}
+
+Not applicable.
+
\section{Create Tip}
xxx tbd
L \haspatch \pry
}\]
-\subsection{Ordering of ${L, R^+, R^-}$:}
+\subsection{Ordering of Ingredients:}
By Unique Tip, $R^+ \le L$. By definition of $\base$, $R^- \le R^+$
so $R^- \le L$. So $R^+ \le C$ and $R^- \le C$.