Combining Texts

All the ideas for 'Natural Kinds and Biological Realism', 'Open Society and Its Enemies:Hegel and Marx' and 'Preface to 'De Revolutionibus''

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5 ideas

9. Objects / D. Essence of Objects / 15. Against Essentialism

5451	Popper felt that ancient essentialism was a bar to progress [Popper, by Mautner]

14. Science / D. Explanation / 2. Types of Explanation / e. Lawlike explanations

15282

Facts should be deducible from the theory and initial conditions, and prefer the simpler theory [Osiander, by Harré/Madden]

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]