src/HOL/Option.thy
changeset 58154 47c3c7019b97
parent 58128 43a1ba26a8cb
child 58310 91ea607a34d8
     1.1 --- a/src/HOL/Option.thy	Wed Sep 03 00:06:25 2014 +0200
     1.2 +++ b/src/HOL/Option.thy	Wed Sep 03 00:06:26 2014 +0200
     1.3 @@ -5,7 +5,7 @@
     1.4  header {* Datatype option *}
     1.5  
     1.6  theory Option
     1.7 -imports BNF_Least_Fixpoint Old_Datatype Finite_Set
     1.8 +imports BNF_Least_Fixpoint Finite_Set
     1.9  begin
    1.10  
    1.11  datatype_new 'a option =