src/HOL/ex/Birthday_Paradox.thy

--- a/src/HOL/ex/Birthday_Paradox.thy	Sat Nov 04 18:57:49 2017 +0100
+++ b/src/HOL/ex/Birthday_Paradox.thy	Sat Nov 04 19:17:19 2017 +0100
@@ -5,7 +5,7 @@
 section \<open>A Formulation of the Birthday Paradox\<close>
 
 theory Birthday_Paradox
-imports Main HOL.Binomial "HOL-Library.FuncSet"
+imports Main "HOL-Library.FuncSet"
 begin
 
 section \<open>Cardinality\<close>