Dear All,
Following the decision of CRM-SIG to replace the multiple instantiation
of E18 Physical Thing with E92 Spacetime Volume,
Here my proposal for the scope note of the respective property, which
reuses parts of the now obsolete scope note of E18 Physical Thing:
*Pxxx defines (is defined by)*
Domain: E18 <#_E18_Physical_Thing> Physical Thing
Range: E92 Spacetime Volume
Quantification: one to one, necessary (1,1:0,1)
Scope note:This property associates an instance of E18 Physical Thing
with the instance of E92 Spacetime Volume that constitutes the complete
trajectory of its geometric extent through spacetimeat all times of the
existence of the instance of E18 Physical Thing.
Note that an instance of E18 Physical Thing not only occupies a
particular geometric space at any instant of its existence, but in the
course of its existence it also forms a trajectory through spacetime,
which occupies a real, that is phenomenal, volume in spacetime, i.e.,
the instance of E92 Spacetime Volume this property associates with.This
real spatiotemporal extent of an instance of E18 Physical Thing is
regarded to be unique to it, due to all its details and fuzziness; its
identity and existence depends uniquely on the identity of the instance
of E18 Physical Thing, which defines it by its very existence. It
constitues a phenomenal spacetime volume as defined in CRMgeo (Doerr and
Hiebel 2013).
We include in this spacetime volume the space filled by the matter of
the physical thing and all its inner spaces at any time of their
existence, such as the interior of a box. Physical things consisting of
aggregations of physically unconnected objects, such as a set of
chessmen, occupy a finite number of individually contiguous subsets of
this spacetime volume equal to the number of parts that constitute the
aggregate and that are never connected during its existence.
In First Order Logic:
P156(x,y) ⊃E18(x)
P156(x,y) ⊃E92(y)
--
------------------------------------
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
Vox:+30(2810)391625
Email: mar...@ics.forth.gr
Web-site: http://www.ics.forth.gr/isl
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