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All the ideas for 'Clitophon', 'Some Remarks on Essentialism' and 'Concepts and Counting'

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7 ideas

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure

17462

A single object must not be counted twice, which needs knowledge of distinctness (negative identity) [Rumfitt]

6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers

17461

Some 'how many?' answers are not predications of a concept, like 'how many gallons?' [Rumfitt]

9. Objects / D. Essence of Objects / 7. Essence and Necessity / a. Essence as necessary properties

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Essentialism says some of a thing's properties are necessary, and could not be absent [Cartwright,R]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

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The difficulty in essentialism is deciding the grounds for rating an attribute as essential [Cartwright,R]

9. Objects / D. Essence of Objects / 15. Against Essentialism

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Essentialism is said to be unintelligible, because relative, if necessary truths are all analytic [Cartwright,R]

9. Objects / F. Identity among Objects / 3. Relative Identity

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An act of ostension doesn't seem to need a 'sort' of thing, even of a very broad kind [Cartwright,R]

22. Metaethics / B. Value / 2. Values / f. Altruism

1590	The just man does not harm his enemies, but benefits everyone [Plato]