Combining Texts

All the ideas for 'Frege's Theory of Numbers', 'On the Reality of Accidents' 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]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure

17447

Parsons says counting is tagging as first, second, third..., and converting the last to a cardinal [Parsons,C, by Heck]

8. Modes of Existence / E. Nominalism / 4. Concept Nominalism

19382

Abstracta are abbreviated ways of talking; there are just substances, and truths about them [Leibniz]