diff -r 450cefec7c11 -r cc19f7ca2ed6 src/HOL/Analysis/Sigma_Algebra.thy
--- a/src/HOL/Analysis/Sigma_Algebra.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/HOL/Analysis/Sigma_Algebra.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -10,11 +10,11 @@
 theory Sigma_Algebra
 imports
   Complex_Main
-  "~~/src/HOL/Library/Countable_Set"
-  "~~/src/HOL/Library/FuncSet"
-  "~~/src/HOL/Library/Indicator_Function"
-  "~~/src/HOL/Library/Extended_Nonnegative_Real"
-  "~~/src/HOL/Library/Disjoint_Sets"
+  "HOL-Library.Countable_Set"
+  "HOL-Library.FuncSet"
+  "HOL-Library.Indicator_Function"
+  "HOL-Library.Extended_Nonnegative_Real"
+  "HOL-Library.Disjoint_Sets"
 begin
 
 text \<open>Sigma algebras are an elementary concept in measure