Combining Texts

All the ideas for 'A Completeness Theorem in Modal Logic', 'Grounding: an opinionated introduction' and 'The Realm of Matter'

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10 ideas

1. Philosophy / E. Nature of Metaphysics / 1. Nature of Metaphysics

17266

Using modal logic, philosophers tried to handle all metaphysics in modal terms [Correia/Schnieder]

2. Reason / B. Laws of Thought / 2. Sufficient Reason

17263

Why do rationalists accept Sufficient Reason, when it denies the existence of fundamental facts? [Correia/Schnieder]

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

10163

Propositional modal logic has been proved to be complete [Kripke, by Feferman/Feferman]

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

10760

With possible worlds, S4 and S5 are sound and complete, but S1-S3 are not even sound [Kripke, by Rossberg]

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

16189

The variable domain approach to quantified modal logic invalidates the Barcan Formula [Kripke, by Simchen]

15132

The Barcan formulas fail in models with varying domains [Kripke, by Williamson]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18521

The criterion of existence is the possibility of action [Santayana]

7. Existence / C. Structure of Existence / 1. Grounding / a. Nature of grounding

17270

Is existential dependence by grounding, or do grounding claims arise from existential dependence? [Correia/Schnieder]

7. Existence / C. Structure of Existence / 1. Grounding / c. Grounding and explanation

17268

Grounding is metaphysical and explanation epistemic, so keep them apart [Correia/Schnieder]

7. Existence / D. Theories of Reality / 8. Facts / a. Facts

17267

The identity of two facts may depend on how 'fine-grained' we think facts are [Correia/Schnieder]