Combining Texts

All the ideas for 'Natural Kinds and Biological Realism', 'Is Hume's Principle analytic?' and 'External and Internal Relations'

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

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5 ideas

8. Modes of Existence / A. Relations / 2. Internal Relations

21342

A relation is internal if two things possessing the relation could not fail to be related [Moore,GE, by Heil]

18. Thought / E. Abstraction / 7. Abstracta by Equivalence

8693	An 'abstraction principle' says two things are identical if they are 'equivalent' in some respect [Boolos]

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]