diff -r 450cefec7c11 -r cc19f7ca2ed6 src/HOL/Quotient_Examples/Quotient_FSet.thy
--- a/src/HOL/Quotient_Examples/Quotient_FSet.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/HOL/Quotient_Examples/Quotient_FSet.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -13,7 +13,7 @@
 *********************************************************************)
 
 theory Quotient_FSet
-imports "~~/src/HOL/Library/Multiset" "~~/src/HOL/Library/Quotient_List"
+imports "HOL-Library.Multiset" "HOL-Library.Quotient_List"
 begin
 
 text \<open>