Dear all, So it sounds like the practical consensus would be on either using the example as originally proposed and putting the note or perhaps even doing it the reverse direction (in the example) but again putting the same note. Like if it says p46i in the example we can put a note, and this implies also p46 reading the other way or if it says P46 in the example then we can put the inverse comment. Would that be a satisfactory solution to all?
Best, George On Sat, Feb 28, 2026 at 1:11 PM Athanasios Velios via Crm-sig < [email protected]> wrote: > Dear all, > > To avoid the complexity of querying for both directions in RDFS, during > the Linked Conservation Data project, all inverse properties were > automatically turned around. But I can see why this may be problematic > in some implementations. > > All the best, > > Thanasis > > On 26/02/2026 09:33, Martin Doerr via Crm-sig wrote: > > Dear All, > > > > May I correct Wolfgang's proposal. > > > > The issue is about formal encoding. RDFS distinguishes forward and > > backward directions as distinct properties. > > This had been amended in OWL with the construct inverse of. CIDOC CRM > > regards the backward direction as a question of label reading and not a > > ditinct identity. Therefore, P46i forms part of is *NOT* a different > > property type from P46 is composed of. If "P46i forms part of" would > > appear in a KB input in an E13 pattern, P140 and P141 should be turned > > around and P177 adjusted to P46 via input S/W. > > > > We had discussed this as a question of formal logic and identity of > > properties. > > > > Bet, > > > > Martin > > > > On 2/26/2026 10:37 AM, George Bruseker via Crm-sig wrote: > >> Dear Wolfgang, > >> > >> Why is this? I have not heard of it before. Is it written? > >> > >> Best, > >> > >> George > >> > >> On Thu, Feb 26, 2026 at 10:34 AM Schmidle, Wolfgang via Crm-sig <crm- > >> [email protected]> wrote: > >> > >> Dear All, > >> > >> Property types like "P46i forms part of" are not allowed in an > >> Attribute Assignment. Instead, it should be "P46 is composed of > >> (forms part of)". Since this isn't common knowledge, the E13 / > >> P140 / P141 / P177 scope notes should be amended to mention it. > >> > >> Best, > >> Wolfgang > >> > >> > >> _______________________________________________ > >> Crm-sig mailing list > >> [email protected] > >> http://cidoc-crm.org/crm-sig-mailing-list > >> > >> > >> _______________________________________________ > >> Crm-sig mailing list > >> [email protected] > >> http://cidoc-crm.org/crm-sig-mailing-list > > > > > > -- > > ------------------------------------ > > Dr. Martin Doerr > > > > Honorary Head of the > > Center for Cultural Informatics > > > > Information Systems Laboratory > > Institute of Computer Science > > Foundation for Research and Technology - Hellas (FORTH) > > > > N.Plastira 100, Vassilika Vouton, > > GR70013 Heraklion,Crete,Greece > > > > Email:[email protected] > > Web-site:http://www.ics.forth.gr/isl > > > > > > _______________________________________________ > > Crm-sig mailing list > > [email protected] > > http://cidoc-crm.org/crm-sig-mailing-list > > _______________________________________________ > Crm-sig mailing list > [email protected] > http://cidoc-crm.org/crm-sig-mailing-list >
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