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Ideas of Jan Westerhoff, by Text

[British, fl. 2005, Lecturer at Durham University.]

2005 Ontological Categories
Intro p.3 Ontological categories are like formal axioms, not unique and with necessary membership
Intro p.4 How far down before we are too specialised to have a category?
Intro p.5 Maybe objects in the same category have the same criteria of identity
Intro p.7 Categories are base-sets which are used to construct states of affairs
Intro p.9 Categories merely systematise, and are not intrinsic to objects
02 p.18 All systems have properties and relations, and most have individuals, abstracta, sets and events
02 p.19 Categories can be ordered by both containment and generality
05 p.24 Categories are held to explain why some substitutions give falsehood, and others meaninglessness
23 p.55 Categories systematize our intuitions about generality, substitutability, and identity
27 p.64 Essential kinds may be too specific to provide ontological categories
27 p.65 Categories as generalities don't give a criterion for a low-level cut-off point
49 p.122 The aim is that everything should belong in some ontological category or other
88 p.215 We negate predicates but do not negate names
89 p.218 A thing's ontological category depends on what else exists, so it is contingent