Combining Philosophers

All the ideas for Hermarchus, Metrodorus (Chi) and William S. Jevons

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3 ideas

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

8628	I hold that algebra and number are developments of logic [Jevons]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

527	Everything exists which anyone perceives [Metrodorus of Chios]

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]