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mc21.hs:12:26: error: [GHC-25897]
• Couldn't match type ‘a’ with ‘[a]’
Expected: [a] -> [[a]]
Actual: [a] -> [a]
‘a’ is a rigid type variable bound by
a type expected by the context:
forall {a}. [a] -> [[a]]
at mc21.hs:12:26-31
• In the expression: take 5
In a stmt of a monad comprehension: then group using take 5
In the expression:
[GHC.List.length x | x <- [Gnorf, Brain], then group using take 5]
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