changeset 28562 | 4e74209f113e |
parent 27330 | 1af2598b5f7d |
child 28711 | 60e51a045755 |
--- a/src/HOL/Fun.thy Fri Oct 10 06:45:50 2008 +0200 +++ b/src/HOL/Fun.thy Fri Oct 10 06:45:53 2008 +0200 @@ -117,7 +117,7 @@ definition bij_betw :: "('a => 'b) => 'a set => 'b set => bool" where -- "bijective" - [code func del]: "bij_betw f A B \<longleftrightarrow> inj_on f A & f ` A = B" + [code del]: "bij_betw f A B \<longleftrightarrow> inj_on f A & f ` A = B" constdefs surj :: "('a => 'b) => bool" (*surjective*)