| definition: |
class Monoid a where mempty :: a mappend :: a -> a -> a mconcat :: [a] -> a mconcat = foldr mappend mempty |
| documentation: |
--- The class `Monoid` defines types with an associative --- binary operation `mappend` having an identity `mempty`. |
| methods: |
["mempty :: a","mappend :: a -> a -> a","mconcat 0 :: [a] -> a"] |
| name: |
Monoid |