Combining Philosophers

All the ideas for Speussipus, Samuel Johnson and Jan Lukasiewicz

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

---

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 / B. Unity of Objects / 2. Substance / c. Types of substance

594	Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle]

16. Persons / F. Free Will / 1. Nature of Free Will

3447	All theory is against free will, and all experience is in favour of it [Johnson,S]

28. God / C. Attitudes to God / 5. Atheism

2632	Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero]