author | wenzelm |
Wed, 04 Oct 2017 12:00:53 +0200 | |
changeset 66787 | 64b47495676d |
parent 57804 | fcf966675478 |
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))" (* a comment *) end