Combining Texts

All the ideas for 'Frege's Theory of Numbers', 'A Note on the entscheidungsproblem' and 'The Same F'

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3 ideas

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

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]

9. Objects / F. Identity among Objects / 3. Relative Identity

12155

Statements of 'relative identity' are really statements of resemblance [Perry]