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src/HOL/TLA/Intensional.thy
changeset 42018 878f33040280
parent 41229 d797baa3d57c
child 42814 5af15f1e2ef6 
--- a/src/HOL/TLA/Intensional.thy	Sun Mar 20 22:48:08 2011 +0100
+++ b/src/HOL/TLA/Intensional.thy	Sun Mar 20 23:07:06 2011 +0100
@@ -15,9 +15,8 @@
 
 (** abstract syntax **)
 
-types
-  ('w,'a) expr = "'w => 'a"               (* intention: 'w::world, 'a::type *)
-  'w form = "('w, bool) expr"
+type_synonym ('w,'a) expr = "'w => 'a"   (* intention: 'w::world, 'a::type *)
+type_synonym 'w form = "('w, bool) expr"
 
 consts
   Valid    :: "('w::world) form => bool"
isabelle