src/HOL/ex/PiSets.thy
changeset 10212 33fe2d701ddd
parent 5856 5fb5a626f3b9
     1.1 --- a/src/HOL/ex/PiSets.thy	Thu Oct 12 18:09:06 2000 +0200
     1.2 +++ b/src/HOL/ex/PiSets.thy	Thu Oct 12 18:38:23 2000 +0200
     1.3 @@ -7,7 +7,7 @@
     1.4  Also the nice -> operator for function space
     1.5  *)
     1.6  
     1.7 -PiSets = Univ + Finite +
     1.8 +PiSets = Datatype_Universe + Finite +
     1.9  
    1.10  syntax
    1.11    "->" :: "['a set, 'b set] => ('a => 'b) set"      (infixr 60)