Combining Texts

All the ideas for 'Physiologia', 'Barcan Formulae' and 'Reals by Abstraction'

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3 ideas

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

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

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers

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The real numbers may be introduced by abstraction as ratios of quantities [Hale, by Hale/Wright]

9. Objects / C. Structure of Objects / 4. Quantity of an Object

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The quantity is just the matter, in that it has extended parts and is diffuse [Charleton]