[Haskell-cafe] Type error depending on scope of pattern matching

[amindfv at gmail.com]

You'll probably get more responses if you paste the code inline.

tom

El Aug 1, 2015, a las 11:25, htebalaka <goodingm at gmail.com> escribió:

> I'm curious if anyone can tell me why moving the pattern matching in these
> two examples makes it fail to compile, and what can be done to resolve the
> same issue in either of the latter two examples. As far as I can tell these
> should be equivalent. Unfortunately the solution used in the first examples
> won't work in the later ones due to the existential quantification. I've
> been asking on #haskell for a few days but haven't been able to find anyone
> who knows what the issue is.
> 
> Code is available here:  http://lpaste.net/137586 <http://lpaste.net/137586>  
> 
> 
> 
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