From f7de5cf2ae0a72d3d79255998934b9cfeb79b89c Mon Sep 17 00:00:00 2001
From: Chris Martens <chrisamaphone@gmail.com>
Date: Mon, 29 Jan 2024 09:03:09 -0500
Subject: [PATCH] lec1

---
 docs/lec1.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/lec1.md b/docs/lec1.md
index 6ddd674..1b30f6e 100644
--- a/docs/lec1.md
+++ b/docs/lec1.md
@@ -10,7 +10,7 @@
 To be added.
 
 ## Exercises
-* Install Twelf.
+* [Download Twelf](http://twelf.org/wiki/Download).
 * Run the example from lecture.
 * Prove the other direction of the lemma (to be added).