From fdef305ee960acf0c492160291ea6e26459c714e Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 12 Mar 2012 14:37:47 +0000
Subject: [PATCH] add missing []

---
 article.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/article.tex b/article.tex
index 3efe2f2..bb050ae 100644
--- a/article.tex
+++ b/article.tex
@@ -549,7 +549,7 @@ Ingredients Prevent Replay applies.  $\qed$
 
 \subsection{Unique Base}
 
-Trivially, $\pendsof{C}{\pqn} = \{B\}$ so $\baseof{C} = B$.
+Trivially, $\pendsof{C}{\pqn} = \{B\}$ so $\baseof{C} = B$.  $\qed$
 
 \subsection{Tip Contents}
 
-- 
2.30.2