Combining Texts

All the ideas for 'Letters to Edward Stillingfleet', 'Elements of Mathematical Logic' and 'Reason, Emotions and Good Life'

expand these ideas     |    start again     |     specify just one area for these texts

---

4 ideas

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

8942	Lukasiewicz's L3 logic has three truth-values, T, F and I (for 'indeterminate') [Lukasiewicz, by Fisher]

9. Objects / D. Essence of Objects / 3. Individual Essences

15990

Every individual thing which exists has an essence, which is its internal constitution [Locke]

11. Knowledge Aims / B. Certain Knowledge / 1. Certainty

15994

If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke]

20. Action / C. Motives for Action / 3. Acting on Reason / a. Practical reason

4316	Either all action is rational, or reason dominates, or reason is only concerned with means [Cottingham]