src/HOL/Filter.thy
changeset 63343 fb5d8a50c641
parent 62379 340738057c8c
child 63540 f8652d0534fa
     1.1 --- a/src/HOL/Filter.thy	Tue Jun 21 17:35:45 2016 +0200
     1.2 +++ b/src/HOL/Filter.thy	Wed Jun 22 10:09:20 2016 +0200
     1.3 @@ -1192,7 +1192,8 @@
     1.4  
     1.5  subsection \<open>Setup @{typ "'a filter"} for lifting and transfer\<close>
     1.6  
     1.7 -context begin interpretation lifting_syntax .
     1.8 +context includes lifting_syntax
     1.9 +begin
    1.10  
    1.11  definition rel_filter :: "('a \<Rightarrow> 'b \<Rightarrow> bool) \<Rightarrow> 'a filter \<Rightarrow> 'b filter \<Rightarrow> bool"
    1.12  where "rel_filter R F G = ((R ===> op =) ===> op =) (Rep_filter F) (Rep_filter G)"