From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 12 Mar 2012 14:37:37 +0000 (+0000)
Subject: improve proof of create base inclusion
X-Git-Tag: f0.2~57
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topbloke-formulae.git;a=commitdiff_plain;h=c0cde0bfdd200f540e0ca3c8c4c78a8888b77b67

improve proof of create base inclusion
---

diff --git a/article.tex b/article.tex
index 36233ae..3efe2f2 100644
--- 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 $L \nothaspatch \p \implies B \nothaspatch P$.