diff -r 1a9decb8bfbc -r ae9e6218443d src/HOL/Library/Rounded_Division.thy
--- a/src/HOL/Library/Rounded_Division.thy	Mon Apr 10 23:21:47 2023 +0200
+++ b/src/HOL/Library/Rounded_Division.thy	Tue Apr 11 11:59:02 2023 +0000
@@ -1,7 +1,7 @@
 (*  Author:  Florian Haftmann, TU Muenchen
 *)
 
-subsection \<open>Rounded division: modulus centered towards zero.\<close>
+section \<open>Rounded division: modulus centered towards zero.\<close>
 
 theory Rounded_Division
   imports Main