author | bulwahn |
Wed, 11 Jul 2012 13:59:39 +0200 | |
changeset 48244 | b88c3e0b752e |
parent 47302 | 70239da25ef6 |
permissions | -rw-r--r-- |
theory MyList imports Main begin datatype 'a list = Nil | Cons 'a "'a list" fun app :: "'a list => 'a list => 'a list" where "app Nil ys = ys" | "app (Cons x xs) ys = Cons x (app xs ys)" fun rev :: "'a list => 'a list" where "rev Nil = Nil" | "rev (Cons x xs) = app (rev xs) (Cons x Nil)" value "rev(Cons True (Cons False Nil))" end