I argue that Grim's diagonalization argument against the possibility of omniscience is not sound by arguing that the properties of being a proposition or a truth are not legitimate sortal properties. Thus, the fact that there can be no set corresponding to the extension of these properties does not imply that there is no completed totality of the things possessing it. First, I demonstrate that a correspondence theory of truth implies that propositions are non-linguistic representations of a type that resist determinate and uniform individuation into units and allow for arbitrary division into parts that are also propositions. The property is, therefore, an abstract mass property with no determinate cardinality of individuals that possess it. I then sketch a new theory of omniscience with this as its basis.

This paper defends a new version of truthmaker non-maximalism. The central feature of the view is the notion of a default truth-value. I offer a novel explanation for default truth-values and use it to motivate a general approach to the relation between truth-value and ontology, which I call truth-value-maker theory. According to this view, some propositions are false unless made true, whereas others are true unless made false. A consequence of the theory is that negative existential truths need no truthmakers and that positive existential falsehoods need no falsemakers.

What is the mental representation that is responsible for implicit bias? What is this representation that mediates between the trigger and the biased behavior? My claim is that this representation is neither a propositional attitude nor a mere association (as the two major accounts of implicit bias claim). Rather, it is mental imagery: perceptual processing that is not directly triggered by sensory input. I argue that this view captures the advantages of the two standard accounts without inheriting their disadvantages. Further, this view also explains why manipulating mental imagery is among the most efficient ways of counteracting implicit bias.

‘Ahab is a whaler’ and ‘Holmes is a whaler’ express different propositions, even though neither ‘Ahab’ nor ‘Holmes’ has a referent. This seems to constitute a theoretical puzzle for the Russellian view of propositions. In this paper, I develop a variant of the Russellian view, Plenitudinous Russellianism. I claim that ‘Ahab is a whaler’ and ‘Holmes is a whaler’ express distinct gappy propositions. I discuss key metaphysical and semantic differences between Plenitudinous Russellianism and Traditional Russellianism and respond to objections that stem from those differences.

According to the traditional account of propositional content, propositions are the primary bearers of truth. Here I argue that acts of predication are the primary bearers of truth. Propositions are types of these actions, and they inherit their truth-conditions from their tokens. Against this, many philosophers think that it is a category mistake to say that actions are true or false. Furthermore, even if we grant that token acts of predication have truth-conditions, there are reasons for doubting that types of these actions also have truth-conditions. I respond to these objections in this paper. I also clarify what it means for propositions to inherit truth-conditions from token acts of predication.

An important objection to sententialist theories of attitude reports is that they cannot accommodate the principle that one cannot know that someone believes that p without knowing what it is that he believes. This paper argues that a parallel problem arises for propositionalist accounts that has gone largely unnoticed, and that, furthermore, the usual resources for the propositionalist do not afford an adequate solution. While non-standard solutions are available for the propositionalist, it turns out that there are parallel solutions that are available for the sententialist. Since the difficulties raised seem to show that the mechanism by which sentential complements serve to inform us about attitudes and about sentence meaning does not depend on their referring to propositions, this casts doubt on whether talk of propositions should retain a significant theoretical role in the enterprise of understanding thought, language and communication.

It is a common view among philosophers of language that both propositions and sentences are structured objects. One obvious question to ask about such a view is whether there is any interesting connection between these two sorts of structure. The author identifies two theses about this relationship. Identity (ID) – the structure of a sentence and the proposition it expresses are identical. Determinism (DET) – the structure of a sentence determines the structure of the proposition it expresses. After noting that ID entails DET, the author argues against DET (and therefore also against ID). This argument is based on considerations to do with unarticulated constituents, but it is not ultimately empirical. As well as answering a question suggested by contemporary theories of propositions, the conclusion is significant because some, but not all, of the theories of propositions currently popular entail ID and/or DET. Unless there is a response to the argument here, those theories are refuted.

In this paper, I criticize Structured Propositionalism, the most widely held theory of the nature of propositions according to which they are structured entities with constituents. I argue that the proponents of Structured Propositionalism have paid insufficient attention to the metaphysical presuppositions of the view – most egregiously, to the notion of propositional constituency. This is somewhat ironic, since the friends of structured propositions tend to argue as if the appeal to constituency gives their view a dialectical advantage. I criticize four different approaches to providing a metaphysics of propositional constituency: set-theoretic, mereological, hylomorphic, and structure-making. Finally, I consider the option of taking constituency in a deflationary, metaphysically ‘lightweight’ sense. I argue that, though invoking constituency in a lightweight sense may be useful for avoiding the ontological problems that plague the ‘heavyweight’ conception, it no longer proffers a dialectical advantage to Structured Propositionalism.

It has recently been suggested that meta-normative expressivism is best seen as a meta-semantic, rather than a semantic view. One strong motivation for this is that expressivism becomes, thereby, compatible with truth-conditional semantics. While this approach is promising, however, many of its details are still unexplored. One issue that still needs to be explored in particular, is what accounts of propositional contents are open to meta-semantic expressivists. This paper makes progress on this issue by developing an expressivist-friendly deflationary account of such contents.

In recent work, Peter Hanks and Scott Soames argue for the type view, according to which propositions are types whose tokens are acts, states, or events. Hanks and Soames think that one of the virtues of the type view is that it allows them to explain why propositions have semantic properties. But, in this paper, we argue that their explanations aren't satisfactory.

This paper defends the view that propositions – that is, what are picked about by complement clauses and the range of quantifiers like that in ‘Sanna believes all that Matti said’ – are states of affairs. States of affairs – and thus propositions – are not, in the primary sense, representational; what is representational and what is true or false in the first instance are mental states and sentence tokens that represent propositions. There is, it is argued, a derivative sense in which propositions are bearers of truth, but truth in that sense is a derivative, non-explanatory notion. This view is contrasted with views like the one Scott Soames develops in What is Meaning?. It’s argued that this view is superior to Soames’ in various ways.

Timothy Williamson has argued for the radical conclusion that everything necessarily exists. In this paper, I assume that the conclusion of Williamson's argument is more incredible than the denial of his premises. Under the assumption that Williamson is mistaken, I argue for the claim that there are some structured propositions which have constituents that might not have existed. If those constituents had not existed, then the propositions would have had an unfilled role; they would have been gappy. This gappy propositions view allows for a plausible response to Williamson's argument. Additionally, a slight variant of the gappy propositions view allows for plausible defense of Linguistic Ersatzism from the problem of contingent non-existents (also known as the problem of aliens).