X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topbloke-formulae.git;a=blobdiff_plain;f=simple.tex;h=dfcf907fbb9ea6d43ddbd1ade98f8eaea57f6c38;hp=9b556ed0cd3cae33726e86812e423eb99ba4b5de;hb=410132e37a1f6e95cbfa9792d63b50b9390e59e4;hpb=54fc3c8f829bfae8dfba6b2178228d2e80036722

diff --git a/simple.tex b/simple.tex
index 9b556ed..dfcf907 100644
--- a/simple.tex
+++ b/simple.tex
@@ -47,7 +47,7 @@ $L$, $D \isin C \implies D \not\in \py$.
 
 $\qed$
 
-\subsection{Coherence and patch inclusion}
+\subsection{Coherence and Patch Inclusion}
 
 Need to consider $D \in \py$
 
@@ -63,7 +63,9 @@ $ D \isin C \equiv \ldots \lor \true \text{ so } D \haspatch C $.
 Ancestors: $ D \le C \equiv D \le L $.
 
 Contents: $ D \isin C \equiv D \isin L \lor f $
-so $ D \isin C \equiv D \isin L $.
+so $ D \isin C \equiv D \isin L $, i.e. $ C \zhaspatch P $.
+By $\haspatch$ for $L$, $\exists_{F \in \py} F \le L$
+and this $F$ is also $\le C$.  So $\haspatch$.
 
 So:
 \[ L \haspatch \p \implies C \haspatch \p \]