Combining Philosophers

All the ideas for Pherecydes, Yale Kamisar and Hilbert,D/Ackermann,W

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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]

25. Social Practice / F. Life Issues / 2. Euthanasia

4051	People will volunteer for euthanasia because they think other people want them dead [Kamisar]

4050	We only allow voluntary euthanasia to someone who is both sane and crazed by pain [Kamisar]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / c. Ultimate substances

22745

Pherecydes said the first principle and element is earth [Pherecydes, by Sext.Empiricus]

29. Religion / D. Religious Issues / 2. Immortality / a. Immortality

5883	Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero]