adamc@850: val foldlAbort : a ::: Type -> b ::: Type -> c ::: Type
adamc@850:                  -> (a -> b -> c -> option c) -> c -> list a -> list b -> option c
adamc@846: 
adamc@801: val mapX : a ::: Type -> b ::: Type -> ctx ::: {Unit}
adamc@801:            -> (a -> b -> xml ctx [] []) -> list a -> list b -> xml ctx [] []
adamc@844: 
adamc@844: val all : a ::: Type -> b ::: Type -> (a -> b -> bool) -> list a -> list b -> bool
adam@1884: 
adam@1884: val map2 : a ::: Type -> b ::: Type -> c ::: Type
adam@1884:            -> (a -> b -> c) -> list a -> list b -> list c