\end{gather}
We will occasionally use $X,Y$ s.t. $\{X,Y\} = \{L,R\}$.
-This can also be used for dependency re-insertion, by setting
-$L \in \pn$, $R \in \pry$, $M = \baseof{R}$.
+This can also be used for dependency re-insertion, by setting $L \in
+\pn$, $R \in \pry$, $M = \baseof{R}$, provided that the Conditions are
+satisfied; in particular, provided that $L \ge \baseof{R}$.
\subsection{Conditions}
\[ \eqn{ Ingredients }{
\bigforall_{E \in \pendsof{X}{\py}} E \le Y
\right]
}\]
-\[ \eqn{ Suitable Tip }{
+\[ \eqn{ Suitable Tips }{
+ \bigforall_{\p \neq \patchof{L}, \; C \haspatch \p}
\bigexists_T
\pendsof{J}{\py} = \{ T \}
\land