Ralf Hemmecke wrote:
>
> On 04/04/2015 04:00 PM, Waldek Hebisch wrote:
> > I think that categories should make only minimal requirements on
> > parameters. So it is natural to generalize TableAggregate to
> > require only Type on first parameter. Some operations may be
> > conditional, for example 'removeDuplicates' assumes notion of
> > equality, so it make sense to require BasicType.
>
> OK.
>
> > Specific domains should make suitable restrictions on parameters,
> > depending on what they need.
>
> So the first natural thing is to generalize
>
> Eltable(S : SetCategory, Index : Type) : Category == with
>
> to
>
> Eltable(S : BasicType, Index : Type) : Category == with
>
Hmm, why not:
Eltable(S : Type, Index : Type) : Category == with
--
Waldek Hebisch
[email protected]
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