Combining Texts

All the ideas for 'The Sign of Four', 'Letters to Fardella' and 'Anselm and Actuality'

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3 ideas

4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic

16456

For modality Lewis rejected boxes and diamonds, preferring worlds, and an index for the actual one [Lewis, by Stalnaker]

8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic

12708

The soul is not a substance but a substantial form, the first active faculty [Leibniz]

14. Science / C. Induction / 1. Induction

22200

If you eliminate the impossible, the truth will remain, even if it is weird [Conan Doyle]