Open wdduncan opened 5 months ago
I'm assuming you are looking at bfo-core.
There's no 'part of' because the continuant relation is a temporalized version (some time) and the occurrent version is not.
As you say, the other issues are not mistakes, just redundant, not parallel. I'll look into cleaning this up in a future release.
I'm assuming you are looking at bfo-core.
Yes. http://purl.obolibrary.org/obo/bfo/2020/bfo-core.owl
There's no 'part of' because the continuant relation is a temporalized version (some time) and the occurrent version is not.
continuant part of at some time
is not in bfo-core.
continuant part of at some time
is not in bfo-core.
Alan is pointing out that the object properties in bfo-core are all qualified to hold at some time which is formally weak and so provide a foundation from which to add the stronger 'all times' child object properties in extension owl files.
In the OWL version, the logical definition for
continuant
includes the (local) axiom'continuant part of' only continuant
. Since thecontinuant part of
relation can only hold between continuants, I am wondering what work this axiom is intended to do. It seems redundant. Also, I expected to see a similar'occurrent part of' only occurrent
axiom in the logical definition ofoccurrent
. However, there isn't one. It isn't wrong, but just makes me wonder why.There is also not a generic
part of
relation. I assume this omission is intentional. Having thepart of
relation would permit local restrictions to be placed on thecontinuant
andoccurrent
classes. E.g.:continuant 'part of' only continuant
occurrent 'part of' only occurrent