Combining Texts

All the ideas for 'Epistemic and Metaphysical Possibility', 'The Web of Belief' and 'Some Puzzles of Ground'

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

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4 ideas

1. Philosophy / F. Analytic Philosophy / 1. Nature of Analysis

8460	Philosophers have given precise senses to deduction, probability, computability etc [Quine/Ullian]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

14263

Strong Kleene disjunction just needs one true disjunct; Weak needs the other to have some value [Fine,K]

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

14262

Formal grounding needs transitivity of grounding, no self-grounding, and the existence of both parties [Fine,K]

10. Modality / A. Necessity / 6. Logical Necessity

12185

Logical necessity is epistemic necessity, which is the old notion of a priori [Edgington, by McFetridge]