src/HOL/Nitpick_Examples/Hotel_Nits.thy
changeset 63167 0909deb8059b
parent 58889 5b7a9633cfa8
child 67369 7360fe6bb423
--- a/src/HOL/Nitpick_Examples/Hotel_Nits.thy	Thu May 26 16:57:14 2016 +0200
+++ b/src/HOL/Nitpick_Examples/Hotel_Nits.thy	Thu May 26 17:51:22 2016 +0200
@@ -5,8 +5,8 @@
 Nitpick example based on Tobias Nipkow's hotel key card formalization.
 *)
 
-section {* Nitpick Example Based on Tobias Nipkow's Hotel Key Card
-          Formalization *}
+section \<open>Nitpick Example Based on Tobias Nipkow's Hotel Key Card
+          Formalization\<close>
 
 theory Hotel_Nits
 imports Main