Since are temporal parts (though not temporal proper parts) of themselves, this temporal regions means, in particular, that (temporal instants) are also zero-dimensional temporal regions occurrents. Subtypes of are: occurrent process process profile (experimental) history process boundary temporal region zero-dimensional temporal region one-dimensional temporal region spatiotemporal region Projection relations a(projects_onto)[Elucidation: To say that each spatiotemporal region s temporally_projects_onto some temporal region is to say that is the temporal extension of t t s. [080-003]] a(projects_onto)[Elucidation: To say that spatiotemporal region spatially_projects_onto spatial s region is to say that is the spatial extent of [081-003]] at at r t r s t. Every spatiotemporal region projects onto some temporal region, and at every time instant within its extent onto some spatial region (all of this relative to some frame).
Since temporal regions are temporal parts (though not temporal proper parts) of themselves, this means, in particular, that zero-dimensional temporal regions (temporal instants) are also occurrents. Subtypes of occurrent are: process process profile (experimental) history process boundary temporal region zero-dimensional temporal region one-dimensional temporal region spatiotemporal region Projection relations a(projects_onto)[Elucidation: To say that each spatiotemporal region s temporally_projects_onto some temporal region t is to say that t is the temporal extension of s. [080-003]] a(projects_onto)[Elucidation: To say that spatiotemporal region s spatially_projects_onto spatial region r at t is to say that r is the spatial extent of s at t. [081-003]] Every spatiotemporal region projects onto some temporal region, and at every time instant within its extent onto some spatial region (all of this relative to some frame).
BFO2-Reference.docx