Combining Texts

All the ideas for 'Natural Kinds and Biological Realism', 'Human Society in Ethics and Politics' and 'Principles of Theoretical Logic'

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5 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC
17750 The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]
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]
28. God / A. Divine Nature / 6. Divine Morality / b. Euthyphro question
2609 If God's decrees are good, and this is not a mere tautology, then goodness is separate from God's decrees [Russell]