Identity of Types and Truthmakers

Abstract

In this paper I deal with Armstrong's last theory of states of affairs and its relation to truthmakers for sentences and the problem of universals. More specifically, I discuss his truthmaker principle, rejecting some of the objections that has been raised against it. However, I also try to show that Armstrong's answer to the problem of the negative existencial sentences in terms of totality states of affairs is mistaken. Finally, I rebut Oliver's slinghot argument against truthmakers and also discuss Armstrong theory of states of affairs as truthmakers.