From 6f2b427bb527c333c53ead395db78406171fe4bb Mon Sep 17 00:00:00 2001
From: John Winans <john@winans.org>
Date: Sat, 19 Jun 2021 13:42:41 -0500
Subject: [PATCH] Add package scrextend so can compress redundant footnotes

---
 book/preamble.tex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/book/preamble.tex b/book/preamble.tex
index da6c30c..3ccc860 100644
--- a/book/preamble.tex
+++ b/book/preamble.tex
@@ -45,6 +45,8 @@
     linkcolor=blue		%choose some color if you want links to stand out
 }
 
+\usepackage{scrextend}		% so can use \footref
+
 % don't say subsection and subsubsection in auto-references
 \let\subsectionautorefname\sectionautorefname
 \let\subsubsectionautorefname\sectionautorefname