annotate lib/ur/option.urs @ 955:01a4d936395a

tail example working
author Adam Chlipala <adamc@hcoop.net>
date Thu, 17 Sep 2009 17:11:23 -0400
parents da3ec6014d2f
children 8c37699de273
rev   line source
adamc@841 1 datatype t = datatype Basis.option
adamc@841 2
adamc@846 3 val eq : a ::: Type -> eq a -> eq (t a)
adamc@846 4
adamc@944 5 val isNone : a ::: Type -> t a -> bool
adamc@841 6 val isSome : a ::: Type -> t a -> bool
adamc@844 7
adamc@844 8 val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b
adamc@846 9 val bind : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> t b