diff options
Diffstat (limited to 'lib/ur/monad.urs')
| -rw-r--r-- | lib/ur/monad.urs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/ur/monad.urs b/lib/ur/monad.urs index 662d780f..f64e2362 100644 --- a/lib/ur/monad.urs +++ b/lib/ur/monad.urs @@ -22,6 +22,15 @@ val foldR2 : K --> m ::: (Type -> Type) -> monad m -> tr [] -> r :: {K} -> folder r -> $(map tf1 r) -> $(map tf2 r) -> m (tr r) +val foldR3 : K --> m ::: (Type -> Type) -> monad m + -> tf1 :: (K -> Type) -> tf2 :: (K -> Type) -> tf3 :: (K -> Type) + -> tr :: ({K} -> Type) + -> (nm :: Name -> t :: K -> rest :: {K} + -> [[nm] ~ rest] => + tf1 t -> tf2 t -> tf3 t -> tr rest -> m (tr ([nm = t] ++ rest))) + -> tr [] + -> r :: {K} -> folder r -> $(map tf1 r) -> $(map tf2 r) -> $(map tf3 r) -> m (tr r) + val mapR : K --> m ::: (Type -> Type) -> monad m -> tf :: (K -> Type) -> tr :: (K -> Type) |