Combining Texts

All the ideas for ''Ostrich Nominalism' or 'Mirage Realism'?', 'Intro to 'Philosophy of Logic'' and 'On the Syllogism IV'

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11 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]

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 / E. Structures of Logic / 6. Relations in Logic

17744

De Morgan started the study of relations and their properties [De Morgan, by Walicki]

13501

De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]

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]

8. Modes of Existence / D. Universals / 1. Universals

8502	Realism doesn't explain 'a is F' any further by saying it is 'a has F-ness' [Devitt]

8. Modes of Existence / E. Nominalism / 1. Nominalism / b. Nominalism about universals

8503	The particular/universal distinction is unhelpful clutter; we should accept 'a is F' as basic [Devitt]

8. Modes of Existence / E. Nominalism / 1. Nominalism / c. Nominalism about abstracta

8501	Quineans take predication about objects as basic, not reference to properties they may have [Devitt]

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]