[Agda] Type decidability
pumpkingod at gmail.com
Mon Jan 21 20:01:15 CET 2013
I'm pretty sure it shouldn't be possible to do that in Idris (if it is,
it's probably a bug), and I don't think most people want it in Agda either.
The main reason it's undesriable is that it violates parametricity, which
is a property most FP people really want.
On Mon, Jan 21, 2013 at 12:58 PM, Dmytro Starosud <d.starosud at gmail.com>wrote:
> Hello guys,
> In Idris one can write:
> g : Type -> Bool
> g Int = True
> g _ = False
> Is it possible to do the same in Agda, in particular:
> type-dec : (A B : Set) -> Dec (A \equiv B)
> type-dec = ?
> Thanks in advance!
> Agda mailing list
> Agda at lists.chalmers.se
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