diff -r 1a9decb8bfbc -r ae9e6218443d src/HOL/Library/Finite_Lattice.thy
--- a/src/HOL/Library/Finite_Lattice.thy	Mon Apr 10 23:21:47 2023 +0200
+++ b/src/HOL/Library/Finite_Lattice.thy	Tue Apr 11 11:59:02 2023 +0000
@@ -2,10 +2,14 @@
     Author:     Alessandro Coglio
 *)
 
+section \<open>Finite Lattices\<close>
+
 theory Finite_Lattice
 imports Product_Order
 begin
 
+subsection \<open>Finite Complete Lattices\<close>
+
 text \<open>A non-empty finite lattice is a complete lattice.
 Since types are never empty in Isabelle/HOL,
 a type of classes \<^class>\<open>finite\<close> and \<^class>\<open>lattice\<close>