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Single Idea 13116
[filed under theme 7. Existence / E. Categories / 1. Categories
]
Full Idea
There is an idea that objects belonging to the same category have the same criteria of identity. This view was first explicitly endorsed by Frege (1884), and was later systematized by Dummett (1981).
Gist of Idea
Maybe objects in the same category have the same criteria of identity
Source
Jan Westerhoff (Ontological Categories [2005], Intro)
Book Ref
Westerhoff,Jan: 'Ontological Categories' [OUP 2005], p.5
A Reaction
This approach is based on identity between equivalence classes. Westerhoff says it means, implausibly, that the resulting categories cannot share properties.
The
14 ideas
from 'Ontological Categories'
13117
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How far down before we are too specialised to have a category?
[Westerhoff]
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13116
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Maybe objects in the same category have the same criteria of identity
[Westerhoff]
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13118
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Categories are base-sets which are used to construct states of affairs
[Westerhoff]
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13115
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Ontological categories are like formal axioms, not unique and with necessary membership
[Westerhoff]
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13119
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Categories merely systematise, and are not intrinsic to objects
[Westerhoff]
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13124
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Categories can be ordered by both containment and generality
[Westerhoff]
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13123
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All systems have properties and relations, and most have individuals, abstracta, sets and events
[Westerhoff]
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13125
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Categories are held to explain why some substitutions give falsehood, and others meaninglessness
[Westerhoff]
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13126
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Categories systematize our intuitions about generality, substitutability, and identity
[Westerhoff]
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13130
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Categories as generalities don't give a criterion for a low-level cut-off point
[Westerhoff]
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13129
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Essential kinds may be too specific to provide ontological categories
[Westerhoff]
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13131
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The aim is that everything should belong in some ontological category or other
[Westerhoff]
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13134
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We negate predicates but do not negate names
[Westerhoff]
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13135
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A thing's ontological category depends on what else exists, so it is contingent
[Westerhoff]
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