[Haskell-cafe] Re: Type families not as useful over functions

oleg at okmij.org oleg at okmij.org
Thu Feb 12 23:36:27 EST 2009

John Ky wrote:
> Is there a way to define type r to be all types except functions?

Perhaps the following article
	How to write an instance for not-a-function
answers your question. It shows several complete examples.

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