Combining Philosophers

All the ideas for Hermarchus, Saunders MacLane and Roger Bacon

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

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3 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

18189

ZFC could contain a contradiction, and it can never prove its own consistency [MacLane]

25. Social Practice / F. Life Issues / 6. Animal Rights

6005	Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences

16745

No one even knows the nature and properties of a fly - why it has that colour, or so many feet [Bacon,R]