Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'fragments/reports' 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Quantified modal logic collapses if essence is withdrawn [Quine]

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

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]

23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / e. Character

541	Virtue comes more from habit than character [Critias]

28. God / C. Attitudes to God / 5. Atheism

542	Fear of the gods was invented to discourage secret sin [Critias]