LANGUAGE ConstraintKinds not needed to use ConstraintKinds?

Evan Laforge qdunkan at
Mon Feb 15 06:15:44 UTC 2016

On Mon, Feb 15, 2016 at 12:57 PM, Eric Seidel <eric at> wrote:
> It looks like it is. According to [1], the context must have the form `C
> a` unless FlexibleContexts is enabled.

Works for me, thanks!

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