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lkuper/gist:3346078

Created August 14, 2012 03:34
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gistfile1.txt
class Cat a where
meow :: a -> Bool
scratch :: a -> Bool
purr :: a -> Bool
purr x = True
instance Cat Integer where
meow = scratch
scratch = purr
-- in GHCi:
-- > meow 5
-- True
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