-\section{Notation}
+\stdsection{Notation}
Throughout, any free variables are implicitly universally quantified
at the outermost level.
maybe not.
\item[ $ \patchof{ C } $ ]
-Either $\p$ s.t. $ C \in \p $, or $\bot$.
+Either $\p$ s.t. $ C \in \p $, or $\foreign$.
A function from commits to patches' sets $\p$.
\item[ $ \pancsof{C}{\set P} $ ]