[Haskell-cafe] [ANN] anonymous-sums

Tikhon Jelvis tikhon at jelv.is
Sat Feb 15 04:02:08 UTC 2014

Yeah, S0 and S1 are probably worth including for the sake of completion. We
don't have a 1-tuple, and I believe that's caused a bit of trouble for
people writing generic libraries. Enough trouble so that somebody wrote a
OneTuple package[1] anyhow.

Of course, S0 is isomorphic to Void and S1 is isomorphic to Identity, but I
don't think that's a big deal especially given that S2 is isomorphic to


On Fri, Feb 14, 2014 at 3:38 PM, Tillmann Rendel <
rendel at informatik.uni-marburg.de> wrote:

> Hi,
> Omari Norman wrote:
>> http://hackage.haskell.org/package/anonymous-sums
> What about S0 and S1?
>   Tillmann
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