Combining Texts

All the ideas for 'Natural Kinds and Biological Realism', 'Review of Frege's 'Grundlagen'' and 'On the Frame of Reference'

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5 ideas

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10009

Substitutional quantification is just a variant of Tarski's account [Wallace, by Baldwin]

6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers

9992	The 'extension of a concept' in general may be quantitatively completely indeterminate [Cantor]

26. Natural Theory / B. Natural Kinds / 1. Natural Kinds

17371

Some kinds are very explanatory, but others less so, and some not at all [Devitt]

27. Natural Reality / G. Biology / 5. Species

17372

The higher categories are not natural kinds, so the Linnaean hierarchy should be given up [Devitt]

17373

Species pluralism says there are several good accounts of what a species is [Devitt]