[Haskell-cafe] Properties of monads

Radosław Grzanka radoslawg at gmail.com
Mon Nov 19 16:46:07 EST 2007

2007/11/19, Ryan Ingram <ryani.spam at gmail.com>:
> I am pretty sure that the constructor MaybeT is exactly what you are looking
> for.
> newtype MaybeT m a = MaybeT (m (Maybe a))
> therefore
> MaybeT :: m (Maybe a) -> MaybeT m a

I swear I tried it. I swear.. Why didn't it worked than and it works now?? ;)

Thank you very much for a tip. :)

 Radek (who can go sleep now with clear mind).

Codeside: http://codeside.org/
Przedszkole Miejskie nr 86 w Lodzi: http://www.pm86.pl/

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