Diagonalization/ dupe for monads and tuples?

[Oliver Charles]

Regardless of having a more abstract version, I'm +1 on Jon's suggestion, and those names. fromEither is something I have reached for many many times and been surprised it's not within arms reach.

On Thu, 17 Sep 2020, at 7:16 AM, Jon Purdy wrote:
> I’m strongly for these:
> 
> Data.Tuple.dup :: a → (a, a)
> 
> Data.Either.fromEither :: Either a a → a
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/libraries/attachments/20200917/ec266463/attachment.html>