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Ontological CategoriesTheir Nature and Significance$
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Jan Westerhoff

Print publication date: 2005

Print ISBN-13: 9780199285044

Published to Oxford Scholarship Online: May 2007

DOI: 10.1093/acprof:oso/9780199285044.001.0001

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Categories in an ontology of states of affairs

Categories in an ontology of states of affairs

Chapter:
(p.90) IV Categories in an ontology of states of affairs
Source:
Ontological Categories
Author(s):

Jan Westerhoff (Contributor Webpage)

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199285044.003.0005

This chapter details the account of ontological categories. It relies on two basic notions, that of a form-set and that of a base-set. The fundamental idea is that form-sets are sets of constituents of states of affairs which have the same form: they are intersubstitutable in states of affairs. Base-sets, on the other hand, are a particular kind of form-set, namely those form-sets which can be used to construct other form-sets. Ontological categories with base-sets are identified. The idea is that collections of form-sets usually contain some redundancy, some sets which, were they deleted, could immediately be reinstated by constructing them from other form-sets. Only those form-sets which are employed in such a construction constitute the actual core of the collection of form-sets.

Keywords:   states affairs, form-sets, base-sets, relativism

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