src/ZF/Sum.thy
changeset 16417 9bc16273c2d4
parent 13823 d49ffd9f9662
child 24893 b8ef7afe3a6b
     1.1 --- a/src/ZF/Sum.thy	Fri Jun 17 11:35:35 2005 +0200
     1.2 +++ b/src/ZF/Sum.thy	Fri Jun 17 16:12:49 2005 +0200
     1.3 @@ -7,7 +7,7 @@
     1.4  
     1.5  header{*Disjoint Sums*}
     1.6  
     1.7 -theory Sum = Bool + equalities:
     1.8 +theory Sum imports Bool equalities begin
     1.9  
    1.10  text{*And the "Part" primitive for simultaneous recursive type definitions*}
    1.11