$ \bigforall_{D \in \py} D \isin C \equiv D \le C $.
Informally, $C$ has the contents of $\p$.
-\item[ $ C \nothaspatch \p $ ]
-$ \bigforall_{D \in \py} D \not\isin C $.
-Informally, $C$ has none of the contents of $\p$.
+\item[ $\displaystyle C \nothaspatch \p $ ]
+$\displaystyle \bigforall_{D \in \py} D \not\isin C $.
+~ Informally, $C$ has none of the contents of $\p$.
\end{basedescript}