$\qed$
+\subsection{Unique Tips:}
+
+Single Parent Unique Tips applies. $\qed$
+
\subsection{Foreign Inclusion:}
Simple Foreign Inclusion applies. $\qed$
\subsection{Foreign Contents:}
-Only relevant if $\patchof{C} = \bot$, and in that case Totally
+Only relevant if $\isforeign{C}$, and in that case Totally
Foreign Contents applies. $\qed$