(no subject)

[bracaman]

If you can use elem :: Eq a => a -> [a] -> Bool  function, you can do:

f x l= or (map (elem x) l


On Thursday 07 February 2002 20:17, you wrote:
> hi,how do I define a function to test whether a number
> is an element of a list of lists of numbers.
>
> elem :: Int -> [[Int]] -> Bool
>
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