merge any Topbloke-controlled branch into any plain git branch.
Given those conditions, Tip Merge and Merge Acyclic do not apply.
-By Foreign Contents of $L$, $\isforeign{M}$ as well.
-So by Foreign Contents for any $A \in \{L,M,R\}$,
+By Foreign Ancestry of $L$, $\isforeign{M}$ as well.
+So by Foreign Ancestry for any $A \in \{L,M,R\}$,
$\forall_{\p, D \in \py} D \not\le A$
so $\pendsof{A}{\py} = \{ \}$ and the RHS of both Merge Ends
conditions are satisifed.
$\qed$
-\subsection{Foreign Contents}
+\subsection{Foreign Ancestry}
Only relevant if $\isforeign{L}$, in which case
$\isforeign{C}$ and by Foreign Merges $\isforeign{R}$,
-so Totally Foreign Contents applies. $\qed$
+so Totally Foreign Ancestry applies. $\qed$
\subsection{Bases' Children}