Combining Texts

All the ideas for 'works', 'Concepts and Counting' and 'Intensions Revisited'

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9 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

13591

Quantified modal logic collapses if essence is withdrawn [Quine]

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction

10121

Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]

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 / 15. Against Essentialism

13590

Essences can make sense in a particular context or enquiry, as the most basic predicates [Quine]

10. Modality / A. Necessity / 11. Denial of Necessity

8483	Necessity is relative to context; it is what is assumed in an inquiry [Quine]

10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds

13589

Possible worlds are a way to dramatise essentialism, and yet they presuppose essentialism [Quine]

10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation

13588

A rigid designator (for all possible worlds) picks out an object by its essential traits [Quine]

11. Knowledge Aims / A. Knowledge / 4. Belief / a. Beliefs

13592

Beliefs can be ascribed to machines [Quine]