Steven Gross

This paper motivates two bases for ascribing propositional semantic knowledge (or something knowledgelike): first, because it’s necessary to rationalize linguistic action; and, second, because it’s part of an empirical theory that would explain various aspects of linguistic behavior. The semantic knowledge ascribed on these two bases seems to differ in content, epistemic status, and cognitive role. This raises the question: how are they related, if at all? The bulk of the paper addresses this question. It distinguishes a variety of answers and their varying philosophical and empirical commitments.

There is a long tradition of drawing metaphysical conclusions from investigations into language. This paper concerns one contemporary variation on this theme: the alleged ontological significance of cognitivist truth-theoretic accounts of semantic competence. According to such accounts, human speakers’ linguistic behavior is in part empirically explained by their cognizing a truth-theory. Such a theory consists of a finite number of axioms assigning semantic values to lexical items, a finite number of axioms assigning semantic values to complex expressions on the basis of their structure and the semantic values of their constituents, and a finite number of production schemata. The theory enables the derivation of truth-conditions for each sentence of the language: something of roughly the form ‘S is true iff P’.1 The claim that speakers stand in a cognitive relation to such theories is advanced, not as a conceptual analysis of semantic competence or understanding, but rather as an empirical hypothesis about human speakers in particular, one part of a broader empirical account of our linguistic competence and cognition generally. It therefore must mesh with the rest of our theorizing in these areas and whatever relevant data from neighboring inquiries there may be. The precise nature of the cognitive relation a speaker is supposed to bear to a truththeory is a matter of some dispute. I speak of ‘‘cognizing’’ (following.

Concepts, the 1996 John Locke Lectures, synthesizes and develops Fodor’s views on the eponymous topic. It’s immensely stimulating. Anyone working in the area will need to study its trenchant critical discussion of key positions in philosophy, linguistics, and psychology. These readers will be rewarded as well by the book’s many illuminating asides and its more constructive closing chapters. With its wealth of ideas and enjoyably Fodorian prose, Concepts auspiciously inaugurates the Oxford Cognitive Science Series. Oxford University Press is also to be commended for making Concepts immediately available in paperback, though it contains far too many typos.

Can one combine Davidsonian semantics with a deflationary conception of truth? Williams argues, contra a common worry, that Davidsonian semantics does not require truth-talk to play an explanatory role. Horisk replies that, in any event, the expressive role of truth-talk that Williams emphasizes disqualifies deflationary accounts—at least extant varieties—from combination with Davidsonian semantics. She argues, in particular, that this is so for Quine's disquotationalism, Horwich's minimalism, and Brandom's prosententialism. I argue that Horisk fails to establish her claim in all three cases. This involves clarifying Quine’s understanding of a purely referential occurrence; explaining how Davidsonians can avail themselves of a syntactic treatment of lexical ambiguity; and correcting a common misreading of Brandom (answering along the way an objection offered by Künne as well).

Michael Tye responds to the problem of higher-order vagueness for his trivalent semantics by maintaining that truth-value predicates are “vaguely vague”: it’s indeterminate, on his view, whether they have borderline cases and therefore indeterminate whether every sentence is true, false, or indefinite. Rosanna Keefe objects (1) that Tye’s argument for this claim tacitly assumes that every sentence is true, false, or indefinite, and (2) that the conclusion is any case not viable. I argue – contra (1) – that Tye’s argument needn’t make that assumption. A version of her objection is in fact better directed against other arguments Tye advances, though Tye can absorb this criticism without abandoning his position’s core. On the other hand, Keefe’s second objection does hit the mark: embracing ‘vaguely vague’ truth-value predicates undermines Tye’s ability to support validity claims needed to defend his position. To see this, however, we must develop Keefe’s remarks further than she does.

Stewart Shapiro’s book develops a contextualist approach to vagueness. It’s chock-full of ideas and arguments, laid out in wonderfully limpid prose. Anyone working on vagueness (or the other topics it touches on—see below) will want to read it. According to Shapiro, vague terms have borderline cases: there are objects to which the term neither determinately applies nor determinately does not apply. A term determinately applies in a context iff the term’s meaning and the non-linguistic facts determine that they do. The non-linguistic facts include the “external” context: “comparison class, paradigm cases, contrasting cases, etc.” (33) But external-contextsensitivity is not what’s central to Shapiro’s contextualism. Even fixing external context, vague terms’ (anti-)extensions exhibit sensitivity to internal context: the decisions of competent speakers. According to Shapiro’s open texture thesis, for each borderline case, there is some circumstance in which a speaker, consistently with the term’s meaning and the non-linguistic facts, can judge it to fall into the term’s extension and some circumstance in which the speaker can judge it to fall into the term’s anti-extension: she can “go either way.” Moreover, borderline sentences are Euthyphronically judgment- dependent: a competent speaker’s judging a borderline to fall into a term’s (anti- )extension makes it so. For Shapiro, then, a sentence can be true but indeterminate: a case left unsettled by meaning and the non-linguistic facts (and thus indeterminate, or borderline) may be made true by a competent speaker’s judgment. Importantly, among the non-linguistic facts that constrain speakers’ judgments (at least in the cases Shapiro cares about) is a principle of tolerance: for all x and y, if x and y differ marginally in the relevant respect (henceforth, Mxy), then if one competently judges Bx, one cannot competently judge y in any other manner in the same (total) context.1 This does not require that one judge By: one might not consider the matter at all..

Zenon Pylyshyn argues that cognitively driven attentional effects do not amount to cognitive penetration of early vision because such effects occur either before or after early vision. Critics object that in fact such effects occur at all levels of perceptual processing. We argue that Pylyshyn’s claim is correct—but not for the reason he emphasizes. Even if his critics are correct that attentional effects are not external to early vision, these effects do not satisfy Pylyshyn’s requirements that the effects be direct and exhibit semantic coherence. In addition, we distinguish our defense from those found in recent work by Raftopoulos and by Firestone and Scholl, argue that attention should not be assimilated to expectation, and discuss alternative characterizations of cognitive penetrability, advocating a kind of pluralism.

Should a theory of meaning state what sentences mean, and can a Davidsonian theory of meaning in particular do so? Max Kölbel answers both questions affirmatively. I argue, however, that the phenomena of non-homophony, non-truth-conditional aspects of meaning, semantic mood, and context-sensitivity provide prima facie obstacles for extending Davidsonian truth-theories to yield meaning-stating theorems. Assessing some natural moves in reply requires a more fully developed conception of the task of such theories than Kölbel provides. A more developed conception is also required to defend his positive answer to the first question above. I argue that, however Kölbel might elaborate his position, it can’t be by embracing the sort of cognitivist account of Davidsonian semantics to which he sometimes alludes.

Normal mature human language users arguably possess two kinds of knowledge of meaning. On the one hand, they possess semantic knowledge that rationalizes their linguistic behavior. This knowledge can be characterized homophonically, can be self-ascribed without adverting to 3rd-person evidence, and is accessible to consciousness. On the other hand, there are empirical grounds for ascribing to them knowledge, or cognition, of a compositional semantic theory. This knowledge lacks the three qualities listed above. This paper explores the possible relations among these two kinds of semantic knowledge. Is the former derived from the latter? Do these ascriptions in fact characterize the same states albeit in different ways? Special attention is paid to the varying philosophical and empirical commitments that different answers incur.

Can all truths be stated in precise language? Not if true indirect speech reports of assertions entered using vague language must themselves use vague language. Sententialism – the view that an indirect speech report is true if and only if the report’s complement clause “same-says” the sentence the original speaker uttered – provides two ways of resisting this claim: first, by allowing that precise language can “same-say” vague language; second, by implying that expressions occurring in an indirect speech report’s complement clause are not used. I reject the first line of resistance, but argue that the second is successful if one accepts sententialism.