src/HOL/Library/FinFun.thy
changeset 49834 b27bbb021df1
parent 48100 0122ba071e1a
child 51124 8fd094d5b7b7
     1.1 --- a/src/HOL/Library/FinFun.thy	Fri Oct 12 15:08:29 2012 +0200
     1.2 +++ b/src/HOL/Library/FinFun.thy	Fri Oct 12 18:58:20 2012 +0200
     1.3 @@ -83,7 +83,7 @@
     1.4  
     1.5  definition "finfun = {f::'a\<Rightarrow>'b. \<exists>b. finite {a. f a \<noteq> b}}"
     1.6  
     1.7 -typedef (open) ('a,'b) finfun  ("(_ =>f /_)" [22, 21] 21) = "finfun :: ('a => 'b) set"
     1.8 +typedef ('a,'b) finfun  ("(_ =>f /_)" [22, 21] 21) = "finfun :: ('a => 'b) set"
     1.9    morphisms finfun_apply Abs_finfun
    1.10  proof -
    1.11    have "\<exists>f. finite {x. f x \<noteq> undefined}"