src/HOL/Analysis/Lebesgue_Integral_Substitution.thy

--- a/src/HOL/Analysis/Lebesgue_Integral_Substitution.thy	Thu Dec 27 23:38:55 2018 +0100
+++ b/src/HOL/Analysis/Lebesgue_Integral_Substitution.thy	Fri Dec 28 10:29:59 2018 +0100
@@ -6,7 +6,7 @@
     This could probably be weakened somehow.
 *)
 
-section \<open>Integration by Substition for the Lebesgue integral\<close>
+section \<open>Integration by Substition for the Lebesgue Integral\<close>
 
 theory Lebesgue_Integral_Substitution
 imports Interval_Integral