\subsection{Recreate Base Beginning}
+To recap we are executing Create Base with
+$L = \tipdy$ and $\pq = \pc$.
+
\subsubsection{Create Acyclic}
-$L = \tipdy$ so
+By Tip Correct Contents of $L$,
+$L \haspatch \pa E \equiv \pa E = \pd \lor \pa E \isdep \pd$.
+Now $\pd \isdirdep \pc$,
+so by Coherence, and setting $\pa E = \pc$,
+$L \nothaspatch \pc$. I.e. $L \nothaspatch \pq$. $\qed$
\subsection{Tip Base Merge}