> On Apr 1, 2021, at 8:12 PM, Anthony Clayden <anthony_clay...@clear.net.nz>
> wrote:
>
> Can I user-define a conventional type-class that behaves more like `(~)`?
I don't think so.
But why does this matter? I can't define `Char` in user code, but it's exported
from the Prelude and requires no extensions. While I can define Eq in user
code, I can't make `deriving` work with my version. I can't define `error` in
user code. There are many others, I'm sure.
So: why does this matter?
Thanks,
Richard
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