app app app f app app g x y x z app app app f z z z app app g x y x app app g x y y app app map fun nil nil app app map fun app app cons x xs app app cons app fun x app app map fun xs app app filter fun nil nil app app filter fun app app cons x xs app app app app filter2 app fun x fun x xs app app app app filter2 true fun x xs app app cons x app app filter fun xs app app app app filter2 false fun x xs app app filter fun xs app 2 f 0 g 0 map 0 nil 0 cons 0 filter 0 filter2 0 true 0 false 0 INNERMOST ./TRS/currying/AG01/#4.3.trs