Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/prelude/Monad/LiftM5.hs
module Monad where liftM5 :: Monad m => (a->b->c->d->e->f) -> (m a -> m b -> m c -> m d -> m e -> m f) liftM5 f = \a b c d e -> do a' <- a b' <- b c' <- c d' <- d e' <- e return (f a' b' c' d' e')