Combining Texts

All the ideas for 'works (all lost)', 'A Note on the entscheidungsproblem' and 'Opus Maius (major works)'

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4 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]

26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature

1748	Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius]

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]

27. Natural Reality / G. Biology / 3. Evolution

5989	Archelaus said life began in a primeval slime [Archelaus, by Schofield]