[Haskell-cafe] Invertible functions list

[Jonathan Fischoff]

This seems like exactly what I want, but there are two problems: I can't
access the paper and it requires Generic Haskell. I'm just too much of newb
to jump into generic Haskell :).

On Mon, Dec 28, 2009 at 7:41 PM, Dan Weston <westondan at imageworks.com>wrote:

> This might be pertinent:
>
> Alimarine et al, "There and Back Again: Arrows for Invertible Programming"
> http://www.cs.ru.nl/A.vanWeelden/bi-arrows/
>
>
> Jonathan Fischoff wrote:
>
>> Hi,
>> I would to create a list of tuples (or something similar) of invertible
>> functions
>>
>> [((a -> b), (b -> a)), ((b -> c), (c -> b)), ....
>>
>> Such that I could call
>>
>> forward invertibleFuctionList domainValue = ? -- composite all the
>> functions
>> backward invertibleFuctionList rangeValue =    forward (reverse
>> invertibleFuctionList) rangeValue  -- or something similar
>>
>>
>> I would also like to concat them. This sounds like a job for GADT that
>> someone might have already tackled. Any ideas?
>>
>> -Jonathan
>>
>>
>
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