Combining Texts

All the ideas for 'The Nature of Things', 'The Logic of Boundaryless Concepts' and 'works'

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9 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 / 3. Value of Logic

9390	Logic guides thinking, but it isn't a substitute for it [Rumfitt]

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]

9. Objects / B. Unity of Objects / 3. Unity Problems / e. Vague objects

9389	Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt]

18. Thought / B. Mechanics of Thought / 6. Artificial Thought / b. Turing Machines

3193	Turing showed that logical rules can be specified computationally and mechanically [Turing, by Rey]