\subsection{Unique Base}
-Not applicable. $\qed$
+Not applicable.
\subsection{Tip Contents}
-Not applicable. $\qed$
+Not applicable.
\subsection{Base Acyclic}
Consider some $D$ s.t. $\patchof{D} = \bot$. $D \neq B$
so $D \isin B \equiv D \isin L$.
+By Foreign Inclusion of $D$ in $L$, $D \isin L \equiv D \le L$.
+And by Exact Ancestors $D \le L \equiv D \le B$.
+So $D \isin B \equiv D \le B$. $\qed$
+
+\subsection{Foreign Contents}
-By Foreign Inclusion of $D$ xxx up to here
+Not applicable.
\section{Create Tip}
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 $R^- \le C$.
\subsection{Foreign Contents}
-Not applicable. $\qed$
+Not applicable.
\section{Merge}