diff -r 450cefec7c11 -r cc19f7ca2ed6 src/Doc/Corec/Corec.thy
--- a/src/Doc/Corec/Corec.thy	Fri Aug 18 13:55:05 2017 +0200
+++ b/src/Doc/Corec/Corec.thy	Fri Aug 18 20:47:47 2017 +0200
@@ -9,8 +9,8 @@
 *)
 
 theory Corec
-imports Main "../Datatypes/Setup" "~~/src/HOL/Library/BNF_Corec"
-  "~~/src/HOL/Library/FSet"
+imports Main Datatypes.Setup "HOL-Library.BNF_Corec"
+  "HOL-Library.FSet"
 begin
 
 section \<open>Introduction