Combining Texts

All the ideas for 'Explaining the A Priori', 'Natural Science (lost)' and 'Barcan Formulae'

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

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3 ideas

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

15380

Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem]

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

527	Everything exists which anyone perceives [Metrodorus of Chios]

18. Thought / D. Concepts / 2. Origin of Concepts / a. Origin of concepts

17722

The concept 'red' is tied to what actually individuates red things [Peacocke]