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By: a guest on
May 8th, 2012 | syntax:
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W7.hs:304:30:
Could not deduce (m ~ Maybe)
from the context (Monad m)
bound by the type signature for
test :: Monad m => [a -> m Bool] -> a -> m Bool
at W7.hs:(303,1)-(306,35)
`m' is a rigid type variable bound by
the type signature for
test :: Monad m => [a -> m Bool] -> a -> m Bool
at W7.hs:303:1
Expected type: m Bool
Actual type: Maybe Bool
In the return type of a call of `Just'
In the second argument of `(==)', namely `(Just True)'
In the expression: (t x) == (Just True)