Combining Texts

All the ideas for 'The Nature of Things', 'Second Philosophy' and 'A Dictionary of Philosophy'

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10 ideas

4. Formal Logic / F. Set Theory ST / 7. Natural Sets

9406	A class is natural when everybody can spot further members of it [Quinton]

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

10594

Henkin semantics is more plausible for plural logic than for second-order logic [Maddy]

7. Existence / E. Categories / 5. Category Anti-Realism

15730

Extreme nominalists say all classification is arbitrary convention [Quinton]

8. Modes of Existence / B. Properties / 5. Natural Properties

15728

The naturalness of a class depends as much on the observers as on the objects [Quinton]

9407	Properties imply natural classes which can be picked out by everybody [Quinton]

8. Modes of Existence / D. Universals / 4. Uninstantiated Universals

15729

Uninstantiated properties must be defined using the instantiated ones [Quinton]

9. Objects / A. Existence of Objects / 5. Individuation / b. Individuation by properties

8520	An individual is a union of a group of qualities and a position [Quinton, by Campbell,K]

12. Knowledge Sources / B. Perception / 4. Sense Data / a. Sense-data theory

6455	Maybe 'sense-data' just help us to talk about unusual perceptual situations [Lacey]

12. Knowledge Sources / B. Perception / 4. Sense Data / b. Nature of sense-data

6454	Where do sense-data begin or end? Can they change? What sort of thing are they? [Lacey]

6453	Some claim sense-data are public, and are parts of objects [Lacey]