Home – Home – Jornals – Philosophy of Sciences 2022 number 4

The article deals with the problem of demarcation between abstract and concrete entities. In its first part, the thesis about the internal variability of the spatiotemporal criterion of demarcation between abstract and concrete entities is substantiated, as well as some variants of this criterion are analyzed. The second part of the article shows how various forms of the spatiotemporal criterion can influence the determination of the status of individual entities. We consider two examples of entities, which some authors view as abstract entities, while other authors view as concrete ones. Namely, we address the problem of zero-dimensional material objects and the issue of the ontological status of possible worlds.