Enum and bounded instances for (,) and Either

Tom Ellis tom-lists-haskell-cafe-2017 at jaguarpaw.co.uk
Wed May 12 17:57:16 UTC 2021

On Wed, May 12, 2021 at 10:52:56AM -0700, Sandy Maguire wrote:
> Found myself puzzled the other day when I wanted an (Enum a, Enum b) =>
> Enum (a, b) instance, and was distraught that it didn't exist.

I have also experienced this.

Please see

I can't actually remember what the outcome of that thread was, but you
may find it enlightening to read through it.

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