Combining Texts

All the ideas for 'Isagoge ('Introduction')', 'Frege on Apriority' and 'A Priori Knowledge Revisited'

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

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6 ideas

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

12430

Classical logic is our preconditions for assessing empirical evidence [Kitcher]

12431

I believe classical logic because I was taught it and use it, but it could be undermined [Kitcher]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

9159	You can't simply convert geometry into algebra, as some spatial content is lost [Burge]

8. Modes of Existence / D. Universals / 1. Universals

15034

Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]

10. Modality / D. Knowledge of Modality / 1. A Priori Necessary

12428

Many necessities are inexpressible, and unknowable a priori [Kitcher]

10. Modality / D. Knowledge of Modality / 2. A Priori Contingent

12429

Knowing our own existence is a priori, but not necessary [Kitcher]