YES 0.468
↳ HASKELL
↳ BR
((mplus :: Maybe a -> Maybe a -> Maybe a) :: Maybe a -> Maybe a -> Maybe a) |
import qualified Maybe import qualified Prelude |
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class Monad a => MonadPlus a where
|
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instance MonadPlus Maybe where
instance MonadPlus [] where |
import qualified Monad import qualified Prelude |
↳ HASKELL
↳ BR
↳ HASKELL
↳ COR
((mplus :: Maybe a -> Maybe a -> Maybe a) :: Maybe a -> Maybe a -> Maybe a) |
import qualified Monad import qualified Prelude |
import qualified Maybe import qualified Prelude |
||||||||||||
class Monad a => MonadPlus a where
|
||||||||||||
instance MonadPlus Maybe where
instance MonadPlus [] where |
undefined
| False
= undefined
undefined = undefined1
undefined0 True = undefined
undefined1 = undefined0 False
↳ HASKELL
↳ BR
↳ HASKELL
↳ COR
↳ HASKELL
↳ Narrow
(mplus :: Maybe a -> Maybe a -> Maybe a) |
import qualified Maybe import qualified Prelude |
||||||||||||
class Monad a => MonadPlus a where
|
||||||||||||
instance MonadPlus Maybe where
instance MonadPlus [] where |
import qualified Monad import qualified Prelude |