Combining Texts

All the ideas for 'A World of States of Affairs', 'On the General Idea of Proof Theory' and 'Lecture on Nominalism'

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10 ideas

2. Reason / F. Fallacies / 1. Fallacy

21697

The Struthionic Fallacy is that of burying one's head in the sand [Quine]

3. Truth / C. Correspondence Truth / 1. Correspondence Truth

4742	Correspondence may be one-many or many one, as when either p or q make 'p or q' true [Armstrong]

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

13827

Logical consequence isn't a black box (Tarski's approach); we should explain how arguments work [Prawitz]

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

21698

All relations, apart from ancestrals, can be reduced to simpler logic [Quine]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13826

Model theory looks at valid sentences and consequence, but not how we know these things [Prawitz]

6. Mathematics / C. Sources of Mathematics / 3. Mathematical Nominalism

21696

Nominalism rejects both attributes and classes (where extensionalism accepts the classes) [Quine]

7. Existence / D. Theories of Reality / 7. Fictionalism

9497	Without modality, Armstrong falls back on fictionalism to support counterfactual laws [Bird on Armstrong]

8. Modes of Existence / B. Properties / 1. Nature of Properties

15550

Properties are contingently existing beings with multiple locations in space and time [Armstrong, by Lewis]

10. Modality / C. Sources of Modality / 1. Sources of Necessity

4743	The truth-maker for a truth must necessitate that truth [Armstrong]

26. Natural Theory / C. Causation / 9. General Causation / d. Causal necessity

4798	In recent writings, Armstrong makes a direct identification of necessitation with causation [Armstrong, by Psillos]