Combining Philosophers

Ideas for Herodotus, Alonzo Church and George Cantor

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2 ideas

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

5. Theory of Logic / K. Features of Logics / 8. Enumerability

10082

There are infinite sets that are not enumerable [Cantor, by Smith,P]