Re: [Haskell-beginners] Issue with MultiParamTypeClasses

Indeed, with newtype it works like a charm. Thanks! On Sun, Dec 6, 2015 at 8:26 PM, Marcin Mrotek wrote:

Hello,

This is not an issue with MultiParamTypeClasses. It's just that type synonyms always have to be used fully applied. You can use a newtype instead:

newtype AdjList a = AdjList [(a,[a])]

instance Graph AdjList Int where (...)

Best regards, Marcin Mrotek

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