Combining Texts

All the ideas for '', 'A Priori Knowledge Revisited' and 'Sources of Knowledge of Mathematics'

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9 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

11211

If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]

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]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

11210

Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]

11212

The sense of a connective comes from primitively obvious rules of inference [Rumfitt]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / d. Logicism critique

9545	Late in life Frege abandoned logicism, and saw the source of arithmetic as geometrical [Frege, by Chihara]

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]

19. Language / F. Communication / 3. Denial

11214

We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]