improve proof of create base inclusion

diff --git a/article.tex b/article.tex
index 36233ae4b7f147a2c67c7f2b96798c5feca1b4e0..3efe2f28afecbb0a804a5fd83938b33c70819cd8 100644 (file)
--- a/article.tex
+++ b/article.tex
@@ -503,7 +503,8 @@ $D \not\in \pqy$.  $\qed$
 \subsection{Coherence and Patch Inclusion}
 
 Consider some $D \in \p$.
-$B \not\in \py$ so $D \neq B$.  So $D \isin B \equiv D \isin L$.
+$B \not\in \py$ so $D \neq B$.  So $D \isin B \equiv D \isin L$
+and $D \le B \equiv D \le L$.
 
 Thus $L \haspatch \p \implies B \haspatch P$
 and $L \nothaspatch \p \implies B \nothaspatch P$.