src/HOL/Fun.thy
changeset 37767 a2b7a20d6ea3
parent 37751 89e16802b6cc
child 38620 b40524b74f77
     1.1 --- a/src/HOL/Fun.thy	Mon Jul 12 08:58:27 2010 +0200
     1.2 +++ b/src/HOL/Fun.thy	Mon Jul 12 10:48:37 2010 +0200
     1.3 @@ -131,7 +131,7 @@
     1.4  
     1.5  definition
     1.6    bij_betw :: "('a => 'b) => 'a set => 'b set => bool" where -- "bijective"
     1.7 -  [code del]: "bij_betw f A B \<longleftrightarrow> inj_on f A & f ` A = B"
     1.8 +  "bij_betw f A B \<longleftrightarrow> inj_on f A & f ` A = B"
     1.9  
    1.10  definition
    1.11    surj :: "('a => 'b) => bool" where