Combining Texts

All the ideas for 'The Logic of Boundaryless Concepts', 'Categories, Classification, Cogn. Anthropology' and 'On the Reduction of Necessity to Essence'

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5 ideas

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]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

16974

The nature of each logical concept is given by a collection of inference rules [Correia]

7. Existence / E. Categories / 2. Categorisation

10494

Several words may label a category; one word can name several categories; some categories lack words [Ellen]

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]

10. Modality / A. Necessity / 6. Logical Necessity

16973

Explain logical necessity by logical consequence, or the other way around? [Correia]