Contextualists and pragmatists agree that knowledge-denying sentences are contextually variable, in the sense that a knowledge-denying sentence might semantically express a false proposition in one context and a true proposition in another context, without any change in the properties traditionally viewed as necessary for knowledge. Minimalists deny both pragmatism and contextualism, and maintain that knowledge-denying sentences are not contextually variable. To defend their view from cases like DeRose and Stanley's high stakes bank case, minimalists like Patrick Rysiew, Jessica Brown, and (...) Wayne Davis forward ‘warranted assertability maneuvers.’ The basic idea is that some knowledge-denying sentence seems contextually variable because we mistake what a speaker pragmatically conveys by uttering that sentence for what she literally says by uttering that sentence. In this paper, I raise problems for the warranted assertability maneuvers of Rysiew, Brown, and Davis, and then present a warranted assertability maneuver that should succeed if any warranted assertability maneuver will succeed. I then show how my warranted assertability maneuver fails, and how the problem with my warranted assertability maneuver generalizes to pragmatic responses in general. The upshot of my argument is that, in order to defend their view from cases like DeRose and Stanley's high stakes bank case, minimalists must prioritize the epistemological question whether the subjects in those cases know over linguistic questions about the pragmatics of various knowledge-denying sentences. (shrink)

It is common to criticize certain comments as ‘unhelpful’. This criticism is richer than it might first appear. In this paper, I sketch an account of conversational helpfulness and unhelpfulness, the reasons why they matter, and the utility of calling out comments as helpful or unhelpful. First, some unhelpful comments are or easily could be demoralizing for proponents of projects, and criticizing them as such can diminish, deflect, or defend against that demoralization. Second, some unhelpful comments redirect or derail conversations (...) away from their projects and criticizing comments as unhelpful can steer conversations back. Third, some unhelpful comments are made out of a lack of epistemic effort and criticizing them as such can help maintain epistemic standards, standards of respect for other people and their projects, and can ensure that such comments do not receive more attention and consideration than they deserve. (shrink)

Meta-ethical non-cognitivism makes two claims—a negative one and a positive one. The negative claim is that moral utterances do not express beliefs which provide the truth-conditions for those utterances. The positive claim is that the primary function of such utterances is to express certain of the speaker’s desire-like states of mind. Non-cognitivism is officially a theory about the meanings of moral words, but non-cognitivists also maintain that moral states of mind are themselves at least partially constituted by desire-like states to (...) which moral utterances give voice. Non-cognitivists need a plausible account of what distinguishes whims, addictions and cravings from genuinely moral judgments. For while non-cognitivists maintain that in a suitably broad sense moral judgments just are constituted by desire-like states they also insist that not any old desire constitutes a genuinely moral judgment. Since the challenge is to demarcate what is distinctive about moral attitudes we might usefully call this the demarcation challenge. One common strategy for meeting the demarcation challenge is to focus on desires directed at getting others to share one’s own desires and emotions. This strategy has some of its earliest roots in Charles Stevenson’s pioneering work. Stevenson argued that there is a ‘do so as well!’ aspect to moral discourse. On Stevenson’s account, in saying something is morally good a speaker not only expresses her own attitude of approval of the object of evaluation but also urges her interlocutors to share that attitude, thereby expressing a desire that they ‘do so as well.’ More recently, in Ruling Passions, Simon Blackburn emphasizes the importance of what he refers to as a ‘staircase of practical and emotional ascent’. (shrink)

There are two major semantic theories of proper names: Semantic Descriptivism and Direct Reference. According to Semantic Descriptivism, the semantic content of a proper name N for a speaker S is identical to the semantic content of a definite description “the F” that the speaker associates with the name. According to Direct Reference, the semantic content of a proper name is identical to its referent. Semantic Descriptivism suffers from a number of drawbacks first pointed out by Donnellan (1970) and Kripke (...) (1972). Direct Reference faces difficulties of its own, most importantly the problem of empty names. The most promising Directly Referential solution to this problem is the Unfilled Proposition view, according to which utterances of sentences containing empty names semantically express unfilled propositions. But this view faces the problem of accounting for the intuition that negative existentials involving empty names are true. The most promising way of dealing with this problem within Unfilled Proposition theory is to suppose (i) that utterances of sentences may be used to pragmatically convey propositions they do not semantically express, and (ii) that the proposition pragmatically conveyed by a speaker S's utterance of a sentence containing an empty name N (where “the F” is a definite description S associates with N) is identical to the proposition semantically expressed by an utterance of the sentence obtained by replacing N with “the F”. Call this view “Pragmatic Descriptivism”. With respect to the problem of negative existentials, Pragmatic Descriptivists can insist that, although an utterance of “Santa does not exist” is literally neither true nor false, our taking it to be true may be explained as the result of our having confused the unfilled proposition it semantically expresses with the clearly true descriptive proposition it pragmatically conveys. Despite its theoretical virtues, Pragmatic Descriptivism has recently come under fire. Everett (2003), in particular, has advanced four different lines of criticism, to which Adams and Dietrich (2004) have responded in some detail. In this article, I have two main aims. The first is to argue that Adams and Dietrich's replies to Everett's criticisms (with one exception) are ineffective. I conclude that there is no acceptable strategy for solving the problem of empty names within Direct Reference theory. The second is to argue that there is a promising alternative to Semantic Descriptivism and Direct Reference that requires us to fill unfilled propositions with names, thereby solving the problem of empty names. (shrink)

Lying is an important moral phenomenon that most people are affected by on a daily basis—be it in personal relationships, in political debates, or in the form of fake news. Nevertheless, surprisingly little is known about what actually constitutes a lie. According to the traditional definition of lying, a person lies if they explicitly express something they believe to be false. Consequently, it is often assumed that people cannot lie by more indirectly communicating believed‐false claims, for instance by merely conversationally (...) implicating them. In this paper, we subject this claim to an empirical test. In a preregistered study of 300 participants, we investigate how people judge cases of implicit deceptions that would usually be excluded by the traditional definition of lying (i.e., conversational implicatures, presuppositions, and nonverbal actions). Our results show that people do in fact consider it possible to lie by indirect means, suggesting that people have a broader concept of lying than is usually assumed. Moreover, our findings indicate that lie judgments are closely tied to the extent to which agents are perceived as having committed themselves to the believed‐false claims they have communicated. We discuss the implications of our results for the traditional definition of lying and propose a new commitment‐based definition of lying that can account for the findings of our experiment. (shrink)

A critique of the purely semantic, minimalist notion of 'what is said'.

We present a novel model of individual people, online posts, and media platforms to explain the online spread of epistemically toxic content such as fake news and suggest possible responses. We argue that a combination of technical features, such as the algorithmically curated feed structure, and social features, such as the absence of stable social-epistemic norms of posting and sharing in social media, is largely responsible for the unchecked spread of epistemically toxic content online. Sharing constitutes a distinctive communicative act, (...) governed by a dedicated norm and motivated to a large extent by social identity maintenance. But confusion about this norm and its lack of inherent epistemic checks lead readers to misunderstand posts, attribute excess or insufficient credibility to posts, and allow posters to evade epistemic accountability—all contributing to the spread of epistemically toxic content online. This spread can be effectively addressed if people and platforms add significantly more context to shared posts and platforms nudge people to develop and follow recognized epistemic norms of posting and sharing. (shrink)

My responses to seven critical reviews of my book *Mental Files* published in a special issue of the journal Disputatio, edited by F. Salis. The reviewers are: Keith Hall, David Papineau, Annalisa Coliva and Delia Belleri, Peter Pagin, Thea Goodsell, Krista Lawlor and Manuel Garcia-Carpintero.

Conversational implicatures do not normally fall within the scope of operators because they arise at the speech act level, not at the level of sub-locutionary constituents. Yet in some cases they do, or so it seems. My aim in this paper is to compare different approaches to the problem raised by what I call 'embedded implicatures': seeming implicatures that arise locally, at a sub-locutionary level, without resulting from an inference in the narrow sense.

It is often claimed that, because of semantic underdetermination, one can determine the content of an utterance only by appealing to pragmatic considerations concerning what the speaker means, what his intentions are. This supports ‘inferentialism' : the view that, in contrast to perceptual content, communicational content is accessed indirectly, via an inference. As against this view, I argue that primary pragmatic processes (the pragmatic processes that are involved in the determination of truth-conditional content) need not involve an inference from premisses (...) concerning what the speaker can possibly intend by his utterance. Indeed, they need not involve any inference at all : communication, I argue, is as direct as perception. (shrink)

In this paper, I argue that that polysemy is a two-sided phenomenon. It can be reduced neither to pragmatic modulation nor to ambiguity, for it is a mixture of both. The senses of a polysemous expression result from pragmatic modulation but they are stored in memory, as the senses of an ambiguous expression are. The difference with straightforward ambiguity is that the modulation relations between the senses are transparent to the language users: the senses are felt as related – they (...) form a family of senses. In other words, whereas two homonymous expressions are different expressions, with the same phonological realization but distinct meanings, a polyseme is a single expression, i.e. a semantic as well as a phonological unit. It has one meaning, which should not be confused with the separate senses which it contributes in context. Different ways of thinking of that unitary meaning will be discussed, and consequences drawn for the debate between more or less radical versions of Contextualism. (shrink)

While most evolutionary scenarios for language see it as a communication system with consequences on the language-ready brain, there are major difficulties for such a view. First, language has a core combination of features—semanticity, discrete infinity, decoupling—that makes it unique among communication systems and that raise deep problems for the view that it evolved for communication. Second, extant models of communication systems—the code model of communication (see Millikan 2005) and the ostensive model of communication (see Scott-Phillips 2015) cannot account for (...) language evolution. I propose an alternative view, according to which language first evolved as a cognitive tool, following Fodor’s (1975, 2008) Language of Thought Hypothesis, and was then expiated (externalized) for communication. On this view, a language-ready brain is a brain profoundly reorganized in terms of connectivity, allowing the human conceptual system to emerge, triggering the emergence of syntax. Language as used in communication inherited its core combination of features from the Language of Thought. (shrink)

In this paper I argue against a widely accepted model of utterance interpretation, namely the LS model, according to which the literal interpretation of an utterance (the proposition literally expressed by that utterance) must be computed before non-literal interpretations can be entertained. Alleged arguments in favor of this model are shown to be fallacious, counterexamples are provided, and alternative models are sketched.

This paper concerns a distinction between circumstantial truths that hold because of the circumstances and acircumstantial truths that hold regardless of, or transcend, the circumstances. Previous discussions of the distinction tended to focus on its applications, such as to modality, logical truth, and essence. This paper focuses on developing the distinction largely, but not entirely, in abstraction from its potential applications. As such, the paper’s main contribution is to further clarify the distinction itself. An indirect contribution is to help guide (...) its future applications. (shrink)

We think about and refer to things that we’ve never perceived or experienced. This paper bears on how this could be. Someone is testimonially acquainted with something just in case the explanation of one’s ability to think de re thoughts about it essentially appeals to communication with others who already have that ability. The main motivation for the claim that testimonial acquaintance is possible is that it best explains how we can think de re about and refer to things we’ve (...) never perceived or experienced: we gain these abilities in part by communicating with those who already have them. The main point of this paper is negative: to argue that testimonial acquaintance, as we currently understand it, is impossible. Although one might take this to show that we cannot be acquainted with things we haven’t perceived or experienced, I prefer to think of it as motivation for rethinking the nature of acquaintance. (shrink)

Contextualism in epistemology has traditionally been understood as the view that “know” functions semantically like an indexical term, encoding different contents in contexts with different epistemic standards. But the indexical hypothesis about “know” faces a range of objections. This article explores an alternative version of contextualism on which “know” is a semantically stable term, and the truth-conditional variability in knowledge claims is a matter of pragmatic enrichment. The central idea is that in contexts with stringent epistemic standards, knowledge claims are (...) narrowed: “know” is used in such contexts to make assertions about particularly demanding types of knowledge. The resulting picture captures all of the intuitive data that motivate contextualism while sidestepping the controversial linguistic thesis at its heart. After developing the view, the article shows in detail how it avoids one influential linguistic objection to traditional contextualism concerning indirect speech reports, and then answers an objection concerning the unavailability of certain types of clarification speeches. (shrink)

A recent challenge to Russell’s theory of definite description centers upon the divergent behavior of definites and their Russellian paraphrases in non-extensional contexts. Russellians can meet this challenge, I argue, by incorporating the familiarity theory of definiteness into Russell’s theory. The synthesis of these two seemingly incompatible theories produces a conceptually consistent and empirically powerful framework. As I show, the coalescence of Russellianism and the familiarity theory of definiteness stands as a legitimate alternative to both Traditional Russellianism and alternative semantic (...) frameworks. (shrink)

A conversation can be conceived as aiming to circumscribe a set of possibilities that are relevant to the goals of the conversation. This set of possibilities may be conceived as determined by the goals and objective circumstances of the interlocutors and not by their propositional attitudes. An indicative conditional can be conceived as circumscribing a set of possibilities that have a certain property: If the set of relevant possibilities is subsequently restricted to one in which the antecedent holds, then it (...) will be restricted as well to one in which the consequent holds. We will identify a number of desiderata concerning the validity of arguments; we will develop a formally precise semantics for conditionals conceived in this way that satisfies the desiderata, and we will present a deductive calculus that is sound and complete with respect to the semantics. Finally, we will argue that the semantics compares well, both formally and foundationally, with two other semantic theories of indicative conditionals that satisfy the desiderata, namely, those of Gillies and Bledin. (shrink)

Procedural metacognition is the set of affect-based mechanisms allowing agents to regulate cognitive actions like perceptual discrimination, memory retrieval or problem solving. This article proposes that procedural metacognition has had a major role in the evolution of communication. A plausible hypothesis is that, under pressure for maximizing signalling efficiency, the metacognitive abilities used by nonhumans to regulate their perception and their memory have been re-used to regulate their communication. On this view, detecting one’s production errors in signalling, or solving species-specific (...) trade-offs between informativeness, processing effort, clarity, or urgency depend on a form of procedural metacognition, called “metacommunication”. How does this view relate to Gricean theories of human communication? A parallel between procedural trade-offs and conversational maxims is discussed for its evolutionary implications. Rather than accepting radically discontinuist interpretations, in which mindreading operates a full reorganization of pragmatics, it is proposed that procedural forms of regulation are entrenched in all forms of human communication. According to contextual demands, humans adopt and monitor more or less demanding informational goals, such as factual updating, clarifying, explaining, proving, and reaching consensus in collective matters. Under time pressure, only part of these goals require adopting others’ viewpoint. Efficiency in collective decision-making, in particular, might have been considerably raised by an ability to interpret others’ intentions and motivations. (shrink)

The aim of this paper is to look at what a parallel deflationist program might be in the theory of knowledge and examine its prospect. In what follows I will simplify matters slightly by focussing on empirical knowledge rather than knowledge in general, though most of what I have to say ought to be applicable, mutatis mutandis, to knowledge in general. Moreover,note that it is not my aim to offer a full defense of a particular deflationist theory of knowledge, which (...) would go well beyond the scope of this paper, but only to defend the utility of taking the deflationist program as regards the theory of knowledge seriously by showing that there is a plausible deflationist position available that is worthy of further scrutiny. (shrink)

This paper develops and defends the view that substantively normative uses of words like “good”, “right” and “ought” are irresolvably indeterminate: any single case of application is like a borderline case for a vague or indeterminate term, in that the meaning-fixing facts, together with the non-linguistic facts, fail to determine a truth-value for the target sentence in context. Normative claims, like vague or indeterminate borderline claims, are not meaningless, though. By making them, the speaker communicates information about the precisifications that (...) s/he accepts. The analogy with vague/indeterminate language, I argue, lays out a new and interesting foundation for a subjectivist approach to normativity. (shrink)

This paper argues that we need to re-think the semantics/pragmatics distinction in the light of new evidence from embedding of irony. This raises a new version of the old problem of ‘embedded implicatures’. I argue that embedded irony isn’t fully explained by solutions proposed for other embedded implicatures. I first consider two strategies: weak pragmatics and strong pragmatics. These explain embedded irony as truth-conditional content. However, by trying to shoehorn irony into said-content, they raise problems of their own. I conclude (...) by considering how a modified Gricean model can explain that irony embeds qua implicature. This leads us to prefer a local implicature model. This has important consequences for how we draw the semantics/pragmatics distinction. (shrink)

Philosophical views of language have traditionally been focused on notions of truth. This is a reconstructive view in that we try to extract from an utterance in context what the sentence and speaker meaning are. This focus on meaning extraction from word sequences alone, however, is challenged by utterances which combine different types of figures. This paper argues that what appears to be a special case of ironic utterances—ironic metaphorical compounds—sheds light on the requirements for psychological plausibility of a theory (...) of communication and thus presents a different view of communication and language to that dominant in philosophy of language. In the view presented here, the hearer does not extract the speaker’s communicative intention from the sequence of words in the utterance, but from other channels, so as to constrain the inferential space for the sentence and speaker meaning. Specifically, we examine an example of ironic metaphor discussed by Stern. He argues that ironic content is logically dependent on metaphorical content, but makes no claims about how psychologically plausible this is in terms of the processing order. We argue that a straightforward translation of logical order into temporal order makes little sense. The primary sticking point is that without a prior understanding of the speaker’s communicative intentions, it is computationally more challenging to process the sub-component meanings. An alternative solution based on communicative channels leads us to a more psychologically plausible account of the structure of communicative acts and intentions. This provides support for the psychological realism of a richer theory of communicative intent. (shrink)

Compound figures are a rich, and under-explored area for tackling fundamental issues in philosophy of language. This paper explores new ideas about how to explain some features of such figures. We start with an observation from Stern that in ironic-metaphor, metaphor is logically prior to irony in the structure of what is communicated. Call this thesis Logical-MPT. We argue that a speech-act-based explanation of Logical-MPT is to be preferred to a content-based explanation. To create this explanation we draw on Barker’s (...) expressivist speech-act theory, in which speech-acts build on other speech-acts to achieve the desired communicative effects. In particular, we show how Barker’s general ideas explain metaphor as an assertive-act, and irony as a ridiculing-act. We use Barker’s notion of proto-illocutionary-acts to show how metaphorical-acts and ironic-acts can build one on the other. Finally, we show that while an ironic-act can build on a metaphorical-act, a metaphorical-act cannot build on an ironic-act. This restriction on how they can be composed establishes Logical-MPT via a different route. (shrink)

This paper reviews the psychological investigation of reasoning with conditionals, putting an emphasis on recent work. In the first part, a few methodological remarks are presented. In the second part, the main theories of deductive reasoning (mental rules, mental models, and the probabilistic approach) are considered in turn; their content is summarised and the semantics they assume for if and the way they explain formal conditional reasoning are discussed, in particular in the light of experimental work on the probability of (...) conditionals. The last part presents the recent shift of interest towards the study of conditional reasoning in context, that is, with large knowledge bases and uncertain premises. (shrink)

Is thinking necessarily linguistic? Do we think with words, to use Bermudez’s (2003) phrase? Or does thinking occur in some other, yet to be determined, representational format? Or again do we think in various formats, switching from one to the other as tasks demand? In virtue perhaps of the ambiguous na- ture of first-person introspective data on the matter, philosophers have tradition- ally disagreed on this question, some thinking that thought had to be pictorial, other insisting that it could not (...) be but linguistic. When any problem divides a community of otherwise intelligent rational thinkers, one suspects some deep conceptual confusion is at play. Indeed, we believe that the conceptual cate- gories used to frame these and related questions are so hopelessly muddled that one could honestly answer “both simultaneously”, or “neither”, depending one what is meant by the alternatives. But let’s get our priorities straight. This paper first and foremost aims at defending what we believe to be a step in that direc- tion of the proper view of thinking, a view we call the spatial-motor view. In order to do so, however, we have found it essential to start by addressing the conceptual confusion just alluded to. Accordingly, the paper proceeds in two steps. First a conceptual step, in which we reconsider some of the traditional categories brought into play when thinking about thinking. Then an empirical step, in which we offer empirical evidence for one of the views conceptually isolated during the first part of the work. Future version of this collaborative work will include a speculative step in which we spin out an evolutionary and developmental scenario whose function it is justify the spatial-motor view by showing how it fits into current evolutionary and developmental theories. (shrink)

One of the central debates in legal philosophy is the debate over legal positivism. Roughly, positivists say that law is ultimately grounded in social facts alone, whereas antipositivists say it is ultimately grounded in both social facts and moral facts. In this paper, I argue that philosophers involved in the dispute over legal positivism sometimes employ distinct concepts when they use the term “law” and pick out different things in the world using these concepts. Because of this, what positivists say (...) might well then be true of one thing (e.g., law1) but false of another (e.g., law2). Accepting this thesis does not mean that the philosophers engaged in this dispute are “talking past each other” or engaged in a “merely verbal dispute” that lacks substance. I argue that participants in this dispute are sometimes arguing about what they should mean by the word “law” in the context at hand. This involves putting forward competing proposals about which concept the word “law” should be used to express. This is an issue in what I call “conceptual ethics.” This argument in conceptual ethics can be well worth having, given the connotations that the term “law” plays in many contexts, ranging from legal argument to political philosophy to social-scientific inquiry. Sometimes, I claim, philosophers (and ordinary speakers) engage in such argument tacitly by competing “metalinguistic” usages of the term “law”—usages of the term that express a view (in this case, a normative view) about the meaning of the word itself. In such cases, speakers on different sides of the positivism debate might in fact both speak truly, in terms of the literal (semantic) content of what they both say. Nonetheless, they may disagree in virtue of views in conceptual ethics about “law” that they express through the nonliteral content of what they say. These views in conceptual ethics often reflect further disagreements about issues that are not ultimately about words or concepts. These include foundational ones in ethics and politics about how we should live and what kind of institutions should govern our lives. My metalinguistic account of the dispute over legal positivism better equips us to identify what such issues are and to engage them more fruitfully. (shrink)

One of Ronald Dworkin's most distinctive claims in legal philosophy is that law is an interpretative concept, a special kind of concept whose correct application depends neither on fixed criteria nor on an instance-identifying decision procedure but rather on the normative or evaluative facts that best justify the total set of practices in which that concept is used. The main argument that Dworkin gives for interpretivism about some conceptis a disagreement-based argument. We argue here that Dworkin's disagreement-based argument relies on (...) a mistaken premise about the nature of disagreement. We propose an alternative analysis of the type of disputeseeming variation casesthat Dworkin uses to motivate the idea of interpretative concepts. We begin by observing that genuine disagreements can be expressed via a range of linguistic mechanisms, many of which do not require that speakers literally assert and deny one and the same proposition. We focus in particular on what we call disputes in which speakers do not express the same concepts by their words but rather negotiate how words should be used and thereby negotiate which of a range of competing concepts should be used in that context. We claim that this view has quite general theoretical advantages over Dworkin's interpretivism about seeming variation cases and about the relevant class of legal disputes in particular. This paper thus has two interlocking goals: (1) to undermine one of Dworkin's core arguments for interpretivism, and (2) to provide the foundations for a noninterpretivist alternative account of an important class of legal disputes. (shrink)

What is the relationship between conceptual engineering and metasemantic externalism? Sally Haslanger has argued that metasemantic externalism justifies the seemingly counterintuitive consequences of her proposed conceptual revisions. But according to Herman Cappelen, metasemantic externalism makes conceptual engineering effectively impossible in practice. After raising objections to Haslanger’s and Cappelen’s views, I argue for a very different picture, on which metasemantic externalism bears very little on conceptual engineering. I argue that, while metasemantic externalism principally operates at the level of semantic-meaning, we should (...) understand conceptual engineering to operate largely at the level of speaker-meaning. This ‘Speaker-Meaning Picture’ has two key benefits. Firstly, it makes conceptual engineering often easy in practice. Secondly, it suggests a new, normative response to the well known objection that conceptual engineering serves only to change the subject. (shrink)

In the past several decades, psychologists and linguists have begun experimentally investigating linguistic pragmatic phenomena. They share the assumption that the best way to study the use of language in context incorporates an experimental methodology, here understood to comprise controlled studies and careful field observations. This article surveys some key projects in experimental pragmatics and relates these projects to ongoing philosophical discussions.

Intuitions about contextualist cases such as Cohen’s airport case pose a problem for classical anti-skeptical versions of invariantism. Recently, Tim Black, Jessica Brown, and Patrick Rysiew have argued that the classical invariantist can respond by arguing that pragmatic aspects of epistemic discourse are responsible for the relevant problematic intuitions. This paper identifies the mechanisms of conversational implicature and impliciture as the basic sources of hope for this explanatory strategy. It then argues that neither of these sources provides the classical invariantist (...) with a convincing response to the airport case and its analogs. (shrink)

This paper is about the pragmatic inferences in play as conversational implicatures (Grice, P. 1989. Studies in the way of words. Cambridge, MA: Harvard University Press) occur. First, it constructs the deductivism versus abductivism debate that transpires from the extant literature but is rarely elaborated. Against deductivism, the paper argues that implicating inferences in conversational implicatures can instantiate an abductive logical form, as abductivism suggests. Against abductivism, however, it grants to deductivism that implicating inferences can have a deductive form provided (...) the latter is of a defeasible type. In sum, it thus argues for pluralist defeasibilism. Second, it turns to the issue of the ontological nature of implicating inferences and advocates normative inferentialism, on which these inferences are not primarily real psychological processes but rules of the practice of implicating. While this allows for the possibility of their psychological instantiation, to be sure, the paper also insists that psychological inferring processes in implicatures are neither necessarily isomorphic to the aforementioned rules nor even necessarily occur as an implicature occurs. (shrink)

I argue that assertoric content functions as a means for us to track the responsibilities undertaken by communicators, and that distinctively assertoric commitments are distinguished by being generated directly in virtue of the words the speaker uses. This raises two questions: (a) Why are speakers responsible for the content thus generated? (b) Why is it important for us to distinguish between commitments in terms of their manner of generation? I answer the first question by developing a novel responsibility based metasemantics. (...) I answer the second by reference to the conflicting pressures governing the resources we have available for appraising speech. (shrink)

In his recent book, John Norton has created a theory of inference to the best explanation, within the context of his "material theory of induction". I apply it to the problem of scientific explanations that are false: if we want the theories in our explanations to be true, then why do historians and scientists often say that false theories explained phenomena? I also defend Norton's theory against some possible objections.

Complete inferential rigour is achieved by breaking down arguments into steps that are as small as possible: inferential ‘atoms’. For example, a mathematical or philosophical argument may be made completely inferentially rigorous by decomposing its inferential steps into the type of step found in a natural deduction system. It is commonly thought that atomization, paradigmatically in mathematics but also more generally, is pro tanto epistemically valuable. The paper considers some plausible candidates for the epistemic value arising from atomization and finds (...) that none of them fits the bill. In particular, atomized arguments do not ground the correctness of their unatomized counterparts; they are typically not credence-preserving; and they need not reveal the source of inferential disagreement. The moral this suggests is that complete rigour is not even a defeasible epistemic ideal. (shrink)

We discuss two philosophical explanations of the epistemic side-effect effect: the doxastic heuristic account (Alfano et al. The Monist 95 (2): 264–289, 2012) and the consequence account (Paprzycka-Hausman Synthese 197: 5457–5490, 2020). We argue that the doxastic heuristic account has problems with explaining knowledge attributions in cases where the probability that the side effect will occur is low and where the side effect does not ultimately occur. It can explain why there is a difference between the harm and the help (...) cases but it cannot explain why people are willing to attribute knowledge in the harm cases. Such attributions can be explained on the consequence account, which takes knowledge attributions in norm-violation cases to be due to the increased salience of a consequence-awareness claim (knowledge that a possible consequence of the chairman’s action is that the environment would be harmed). We report the results of a new study that tests the predictions of both accounts. In some conditions, people attribute knowledge of the side effect even in cases where the chairman does not have the relevant belief. This result directly contradicts the central tenet of the doxastic heuristic account. Linear regression models of knowledge attribution that correspond to the two accounts were compared. The addition of different justification options significantly contributes to the predictive power of the statistical model. The consequence account can explain the pattern of justifications better than the doxastic heuristic account. Our findings support the consequence account and pose a challenge to the proponents of the doxastic heuristic account. (shrink)

The idea that verbal communication involves a species of mindreading is not new. Among linguists and philosophers, largely as a result of Grice’s (1957, 1967) influence, it has long been recognized that the act of communicating involves on the part of the communicator and the addressee mutual metarepresentations of each others’ mental states. In psychology, the coordination of common ground and attention in conversation has been pursued in a variety of studies (e.g. Clark and Marshall, 1981; Bruner, 1983).