Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Herbert B. Enderton and William Lycan

expand these ideas     |    start again     |     choose another area for these philosophers

display all the ideas for this combination of philosophers

---

1 idea

5. Theory of Logic / B. Logical Consequence / 2. Types of Consequence

9718	Validity is either semantic (what preserves truth), or proof-theoretic (following procedures) [Enderton]