author | wenzelm |
Tue, 07 Aug 2012 15:01:48 +0200 | |
changeset 48707 | ba531af91148 |
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