Why not define (:~~:) in Data.Type.Equality.Heterogeneous in the first place instead of defining it in Data.Type.Equality and reexporting it from Data.Type.Equality.Heterogeneous?

All the best,
Wolfgang

Am Montag, den 10.07.2017, 08:24 -0700 schrieb Ryan Scott:
I also agree that we should keep HRefl a distinct name, and moreover, we should keep :~: and :~~: as distinct datatypes.

I'm also on-board with the idea that we should introduce a separate Data.Type.Equality.Hetero module that reexports :~~: and defines heterogeneous counterparts for sym, trans, etc. from Data.Type.Equality. I don't have a strong opinion on how they should be named (e.g., sym vs. hsym).

Ryan S.