From f0fab6e197510ce0e6d23a669f69de966701d495 Mon Sep 17 00:00:00 2001
From: Josh Chen
Date: Wed, 8 Jul 2020 15:54:04 +0200
Subject: minor

---
 hott/Nat.thy | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'hott/Nat.thy')

diff --git a/hott/Nat.thy b/hott/Nat.thy
index 22c1860..50b7996 100644
--- a/hott/Nat.thy
+++ b/hott/Nat.thy
@@ -151,7 +151,7 @@ Lemma (derive) zero_mul:
     proof reduce
       have "0 + 0 * n = 0 + 0 " by (eq ih) refl
       also have ".. = 0" by reduce refl
-      finally show "0 + 0 * n = 0" by this
+      finally show "{}" by this
     qed
   done
 
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