[Agda] list of types

Altenkirch Thorsten psztxa at exmail.nottingham.ac.uk
Mon Apr 15 16:24:39 CEST 2013

Indeed, what would be an element of "EachPositive xs"?

On 15/04/2013 06:17, "Andreas Abel" <andreas.abel at ifi.lmu.de> wrote:

>On 15.04.2013 11:44, Serge D. Mechveliani wrote:
>> Andreas Abel responded recently
>>> A list of types is not a type.
>> But why
>>         EachPositive : List Nat -> List (Set _)
>>         EachPositive xs =  map (\ n -> n > 0) xs
>> is type-checked?
>This is fine, "List Set" is a type, but "EachPositive xs" is a list, and
>cannot be used as a type, as in,
>   -> EachPositive xs -> ...
>Andreas Abel  <><      Du bist der geliebte Mensch.
>Theoretical Computer Science, University of Munich
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