Combining Texts

All the ideas for 'fragments/reports', 'Intro to 'Philosophy of Logic'' and 'Zettel'

expand these ideas     |    start again     |     specify just one area for these texts

---

11 ideas

1. Philosophy / D. Nature of Philosophy / 1. Philosophy

2626	A philosopher is outside any community of ideas [Wittgenstein]

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]

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 / 6. Paradoxes in Language / a. The Liar paradox

6569	'This sentence is false' sends us in a looping search for its proposition [Wittgenstein, by Fogelin]

13. Knowledge Criteria / C. External Justification / 2. Causal Justification

3790	Causes of beliefs are irrelevant to their contents [Wittgenstein]

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]

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]