1. David Ripley, Against Structured Propositions.
    This is an essay in compositional semantics: the project of understanding how the meanings of sentences depend systematically on the meanings of their parts, and the way those meanings are combined. One way to model this process is to adapt tools from the study of modal or other intensional logics (see eg (Montague, 2002), (Gamut, 1991), (von Fintel and Heim, 2007)), and that’s the method I’ll be pursuing here. My particular task in this essay is to use data about sentences with embedded clauses to provide evidence for theories of what those clauses denote. Call whatever clauses denote, according to a particular theory, that theory’s ‘propositions’; then this essay tries to adduce some evidence about what propositions are like. Here’s the plan: in §1, I’ll discuss a traditional idea—that propositions are sets of possible worlds—and point out some familiar problems with such an approach. In §2, I briefly outline two possible improvements on possible-worlds propositions that solve these familiar problems—circumstantialism and structuralism. The remainder of the paper comprises arguments against structuralism and in favor of (a certain form of) circumstantialism: in §3 I present arguments against structuralism, and in §4, I consider structuralist responses to these arguments, as well as an influential argument against circumstantialism. If these arguments are correct, then some startling conclusions follow—in particular, that the negation of classical logic, whatever its other virtues, cannot provide a correct semantics for negation in natural language. Two key pieces of notational stuff: I use boldface type for quotation (cuts down on quotes everywhere), and double brackets to talk about denotations of linguistic items. So, if we think names denote their bearers, then Mary = Mary. Here we go! 1 1 Problems with the possible-worlds approach..
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