Exact(5)
We will come back to the imperfective paradox in Section 7. Having introduced events as primitive entities, a philosophical question now arises: how are events and times related?
Sellars is a physicalist about color, not because he thinks colors can be reduced to more basic properties and relations of physical objects, but because physics will have to expand to accommodate the sensible qualities, color included, as primitive entities.
Thus, time is represented as a bundle of histories passing through simultaneous 'moments' (in Belnap's terminology, see Belnap et al. 2001) and instants here are no longer primitive entities, but maximal sets of simultaneous moments.
Instant-based models are often not suitable for reasoning about real-world events with duration, which are better modeled if the underlying temporal ontology uses time intervals, rather than instants, as the primitive entities.
In such frames, branches are abstract primitive entities and the relations between branches that correspond to the modal and temporal operators in OBTL are explicitly given as part of the definition of the model.
Similar(55)
Such system would be similar to those suggested by primitive biological entities like the slime models of the Dictyostelium class.
The composition of behavioral fields is carried out in a manner that is procedurally similar to composition of primitive geometrical entities through set theoretic Boolean operations in constructive solid geometry.
The second factor had to do with the discovery of a better alternative as primitive living entity: ribozymes.
Comparative genomics of organisms from the three domains has shown that the cenancestor was not a direct descendant of the prebiotic soup nor a primitive cellular entity where the genotype and the phenotype had an imprecise relationship (i.e., a progenote), rather it was an organism similar in complexity to extant cells.
Generally, animistic explanations made in terms of the volitions of soul-like beings operating behind the appearances are rejected as primitive projections of unverifiable entities.
Fine has argued, however, that qua ontologists we do need to look elsewhere.[21] Suppose, with Fine, that there is a primitive distinction between those entities that are "fundamentally real", and those that are not.
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Justyna Jupowicz-Kozak
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