Combining Texts

Ideas for 'works', 'The Principles of Mathematics' and 'Real Essentialism'

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6 ideas

2. Reason / D. Definition / 4. Real Definition

8200	Aristotelian definitions aim to give the essential properties of the thing defined [Aristotle, by Quine]

2. Reason / D. Definition / 5. Genus and Differentia

4385	Aristotelian definition involves first stating the genus, then the differentia of the thing [Aristotle, by Urmson]

12249

'Animal' is a genus and 'rational' is a specific difference [Oderberg]

12242

Definition distinguishes one kind from another, and individuation picks out members of the kind [Oderberg]

2. Reason / D. Definition / 13. Against Definition

14115

Definition by analysis into constituents is useless, because it neglects the whole [Russell]

14159

In mathematics definitions are superfluous, as they name classes, and it all reduces to primitives [Russell]