7 Feb
2002
7 Feb
'02
8:53 p.m.
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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