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Single Idea 13129

[filed under theme 9. Objects / D. Essence of Objects / 5. Essence as Kind ]

Full Idea

Essential kinds can be very specific, and arguably too specific for the purposes of ontological categories.

Gist of Idea

Essential kinds may be too specific to provide ontological categories

Source

Jan Westerhoff (Ontological Categories [2005], §27)

Book Ref

Westerhoff,Jan: 'Ontological Categories' [OUP 2005], p.64

A Reaction

Interesting. There doesn't seem to be any precise guideline as to how specific an essential kind might be. In scientific essentialism, each of the isotopes of tin has a distinct essence, but why should they not be categories

The 14 ideas from 'Ontological Categories'

13117 How far down before we are too specialised to have a category? [Westerhoff]
13116 Maybe objects in the same category have the same criteria of identity [Westerhoff]
13118 Categories are base-sets which are used to construct states of affairs [Westerhoff]
13115 Ontological categories are like formal axioms, not unique and with necessary membership [Westerhoff]
13119 Categories merely systematise, and are not intrinsic to objects [Westerhoff]
13124 Categories can be ordered by both containment and generality [Westerhoff]
13123 All systems have properties and relations, and most have individuals, abstracta, sets and events [Westerhoff]
13125 Categories are held to explain why some substitutions give falsehood, and others meaninglessness [Westerhoff]
13126 Categories systematize our intuitions about generality, substitutability, and identity [Westerhoff]
13130 Categories as generalities don't give a criterion for a low-level cut-off point [Westerhoff]
13129 Essential kinds may be too specific to provide ontological categories [Westerhoff]
13131 The aim is that everything should belong in some ontological category or other [Westerhoff]
13134 We negate predicates but do not negate names [Westerhoff]
13135 A thing's ontological category depends on what else exists, so it is contingent [Westerhoff]