 For take the conjunctive proposition that Socrates is a philosopher and Frege is human. P2 tells us that there is a set of facts \(K\) such that \(\DES(K)\) is the truth-set of that proposition. What is that set of facts? One may be tempted to answer: the set whose sole member is the fact that Socrates is a philosopher and Frege is human. It is hard to see which other answer could be provided, and so P2 seems to commit one to conjunctive facts.