As the RDFS spec says: The RDF Schema class and property system is similar to the type systems of object-oriented programming languages such as Java. RDF Schema differs from many such systems in that instead of defining a class in terms of the properties its instances may have, RDF Schema describes properties in terms of the classes of resource to which they apply. This is the role of the domain <https://www.w3.org/TR/rdf-schema/#ch_domain> and range <https://www.w3.org/TR/rdf-schema/#ch_range> mechanisms described in this specification.
This specification does not attempt to enumerate all the possible forms of representing the meaning of RDF classes and properties. Instead, the RDF Schema strategy is to acknowledge that there are many techniques through which the meaning of classes and properties can be described. Richer vocabulary or 'ontology' languages such as OWL [OWL2-OVERVIEW <https://www.w3.org/TR/rdf-schema/#bib-OWL2-OVERVIEW>], inference rule languages and other formalisms (for example temporal logics) will each contribute to our ability to capture meaningful generalizations about data in the Web. See https://www.w3.org/TR/rdf-schema/ So, - No RDFS itself does support set theory operators for defining classes. Cheers, David > On 26 Mar 2020, at 13:32, 'Bohms, H.M. (Michel)' via TopBraid Suite Users > <[email protected]> wrote: > > Is there some counterpart of “domain/ranges with owl unions” in RDFS? > (or are they lost?) > > Thx Michel > > > > > > Dr. ir. H.M. (Michel) Böhms > Senior Data Scientist > > T +31888663107 > M +31630381220 > E [email protected] <mailto:[email protected]> > Location > <https://www.google.com/maps/place/TNO+-+Locatie+Delft+-+Stieltjesweg/@52.000788,4.3745183,17z/data=!3m1!4b1!4m5!3m4!1s0x47c5b58c52869997:0x56681566be3b8c88!8m2!3d52.000788!4d4.376707> > > > <image001.gif> <http://www.tno.nl/> > This message may contain information that is not intended for you. If you are > not the addressee or if this message was sent to you by mistake, you are > requested to inform the sender and delete the message. TNO accepts no > liability for the content of this e-mail, for the manner in which you use it > and for damage of any kind resulting from the risks inherent to the > electronic transmission of messages. > > > > > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/bd4c56a1ac3b4d2c82ebc87f04e563be%40tno.nl > > <https://groups.google.com/d/msgid/topbraid-users/bd4c56a1ac3b4d2c82ebc87f04e563be%40tno.nl?utm_medium=email&utm_source=footer>. UK +44 (0) 7788 561308 US +1 (336) 283-0808 -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/topbraid-users/21533223-9717-4FAA-AFF6-76250BE78368%40topquadrant.com.
