[Agda] complex indices

[Ramana Kumar]

On Wed, Feb 22, 2012 at 9:02 PM, Andreas Abel <andreas.abel at ifi.lmu.de>wrote:

> Why has foo a second argument "Bool" after "true"?
>

I don't know. I'm hoping that was a copy/paste error.


> Also, note that the equation
>
>  a = if x then a else a
>
> does not hold definitionally in Agda.  Hence the complaint of Agda.
>

OK, I think that explains it...


> That Agda prints y as @0 points to some problem in Agda.
>

Right.


>
> Cheers,
> Andreas
>
>
> On 22.02.12 9:34 PM, Ramana Kumar wrote:
>
>> Why exactly does this fail?
>> Should it?
>>
>> data foo : (y : Bool) → if y then Set else Set where
>>   bar : foo true Bool
>>
>> The error I get is
>>
>> if @0 then Set else Set != Set of type Set₁
>> when checking the definition of foo
>>
>> which is a little cryptic (but probably no more so than my declaration).
>>
>>
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>
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>
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>
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