Re: Diagonalization/ dupe for monads and tuples?

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