On 2/22/08, Taral <taralx at gmail.com> wrote: > shift :: Prompt r -> ((a -> _) -> r) -> a > > (Where _ is either r or forall b. b) It occurs to me that _ has to be r, otherwise the subcontinuation can escape. -- Taral <taralx at gmail.com> "Please let me know if there's any further trouble I can give you." -- Unknown