Combining Texts

All the ideas for 'fragments/reports', 'On 'Insolubilia' and their solution' and 'Intro to 'Philosophy of Logic''

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10 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic

9456	Modal logic is multiple systems, shown in the variety of accessibility relations between worlds [Jacquette]

4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / c. Logical sets

21563

The 'no classes' theory says the propositions just refer to the members [Russell]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

9457	The two main views in philosophy of logic are extensionalism and intensionalism [Jacquette]

5. Theory of Logic / I. Semantics of Logic / 5. Extensionalism

9458	Extensionalists say that quantifiers presuppose the existence of their objects [Jacquette]

5. Theory of Logic / I. Semantics of Logic / 6. Intensionalism

9461	Intensionalists say meaning is determined by the possession of properties [Jacquette]

5. Theory of Logic / L. Paradox / 4. Paradoxes in Logic / d. Richard's paradox

21565

Richard's puzzle uses the notion of 'definition' - but that cannot be defined [Russell]

5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / a. The Liar paradox

21564

Vicious Circle: what involves ALL must not be one of those ALL [Russell]

13. Knowledge Criteria / E. Relativism / 2. Knowledge as Convention

1556	By nature people are close to one another, but culture drives them apart [Hippias]

19. Language / C. Assigning Meanings / 7. Extensional Semantics

9460	Extensionalist semantics forbids reference to nonexistent objects [Jacquette]

9459	Extensionalist semantics is circular, as we must know the extension before assessing 'Fa' [Jacquette]