Combining Texts

Ideas for 'talk', 'A world of truthmakers?' and 'Posterior Analytics'

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

display all the ideas for this combination of texts

---

1 idea

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL

1668	An axiom is a principle which must be understood if one is to learn anything [Aristotle]