RE: Can we make subproperties of rdf:type

> How far however should it go?  Can someone make a sub-property if
> rdf:type and claim that a new subject with this property belongs to
> the specified type?
>
> Given the fact that rdf:type is part of base RDF, where sub-properties
> are part of RDFS suggests this might not be a good idea.  It might also
> seriously harm performance as adding/deleting such a subproperty relation
> can have huge consequences.

I think one should definitely be able to have a subproperty of rdf:type.
RDFS would be inconsistent otherwise.

It wouldn't be a good idea to do so in general, though it may help bridge a
gap between a non-RDF system with a similar feature, and RDF.