There is a fundamental disagreement about which norm regulates assertion. Proponents of factive accounts argue that only true propositions are assertable, whereas proponents of non-factive accounts insist that at least some false propositions are. Puzzlingly, both views are supported by equally plausible (but apparently incompatible) linguistic data. This paper delineates an alternative solution: to understand truth as the aim of assertion, and pair this view with a non-factive rule. The resulting account is able to explain all the relevant linguistic data, (...) and finds independent support from general considerations about the differences between rules and aims. (shrink)

According to an influential view, asserting a proposition involves undertaking some “commitment” to the truth of that proposition. But accounts of what it is for someone to be committed to the truth of a proposition are often vague or imprecise, and are rarely put to work to define assertion. This article aims to fill this gap. It offers a precise characterisation of assertoric commitment, and applies it to define assertion. On the proposed view, acquiring commitment is not sufficient for asserting: (...) To assert, commitment must be acquired by explicitly presenting a proposition as true. (shrink)

This paper analyses the communicative and epistemic value of retweeting (and more generally of reposting content on social media). Against a naïve view, it argues that retweets are not acts of endorsement, motivating this diagnosis with linguistic data. Retweeting is instead modelled as a peculiar form of quotation, in which the reported content is indicated rather than reproduced. A relevance-theoretic account of the communicative import of retweeting is then developed, to spell out the complex mechanisms by which retweets achieve their (...) communicative goals. The last section outlines the epistemic threats posed by the increasing prevalence of retweeting on social media, linking them to the low reputational, cognitive and practical costs linked to this emerging form of communication. (shrink)

Not every speech act can be a lie. A good definition of lying should be able to draw the right distinctions between speech acts that can be lies and speech acts that under no circumstances are lies. This paper shows that no extant account of lying is able to draw the required distinctions. It argues that a definition of lying based on the notion of ‘assertoric commitment’ can succeed where other accounts have failed. Assertoric commitment is analysed in terms of (...) two normative components: ‘accountability’ and ‘discursive responsibility’. The resulting definition of lying draws all the desired distinctions, providing an intensionally adequate analysis of the concept of lying. (shrink)

Is truth the rule or the aim of assertion? Philosophers disagree. After reviewing the available evidence, the hypothesis that truth is the aim of assertion is defended against recent attempts to prove that truth is rather a rule of assertion.

Secondo la definizione “standard”, la menzogna è definita da quattro condizioni necessarie, congiuntamente sufficienti. La prima (condizione dell’asserto) richiede che il parlante proferisca un asserto in una frase dichiarativa dotata di senso compiuto. La seconda (condizione dell’insincerità), stabilisce che il parlante debba credere falso il contenuto proposizionale (p) del suo asserto, e la terza (condizione dell’interlocutore) richiede che l’asserto sia rivolto a un interlocutore. Secondo l’ultima condizione (condizione dell’intenzione di ingannare), il parlante deve avere l’intenzione di far credere all’interlocutore che (...) p è vero. Nei primi 5 capitoli di questa tesi discuto pregi e difetti di ognuna di queste condizioni. Nell’ultimo capitolo propongo una lettura pragmatica della menzogna, intesa come asserzione insincera, toccando questioni legate alla teoria degli atti linguistici e delle implicature conversazionali. (shrink)

In a recent article, Krauss (2017) raises some fundamental questions concerning (i) what the desiderata of a definition of lying are, and (ii) how definitions of lying can account for partial beliefs. This paper aims to provide an adequate answer to both questions. Regarding (i), it shows that there can be a tension between two desiderata for a definition of lying: 'descriptive accuracy' (meeting intuitions about our ordinary concept of lying), and 'moral import' (meeting intuitions about what is wrong with (...) lying), vindicating the primacy of the former desideratum. Regarding (ii), it shows that Krauss' proposed 'worse-off requirement' meets neither of these desiderata, whereas the 'comparative insincerity condition' (Marsili 2014) can meet both. The conclusion is that lies are assertions that the speaker takes to be more likely to be false than true, and their distinctive blameworthiness is a function of the extent to which they violate a sincerity norm. (shrink)

According to an influential hypothesis, the speech act of assertion is subject to a single 'constitutive' rule, that takes the form: "One must: assert that p only if p has C". Scholars working on assertion interpret the assumption that this rule is 'constitutive' in different ways. This disagreement, often unacknowledged, threatens the foundations of the philosophical debate on assertion. This paper reviews different interpretations of the claim that assertion is governed by a constitutive rule. It argues that once we understand (...) the full import of assuming that assertion is governed by a constitutive rule, it becomes clear that some fundamental assumptions of the current debate are mistaken, and others unwarranted. (shrink)

In a recent book (_Lying and insincerity_, Oxford University Press, 2018), Andreas Stokke argues that one lies iff one says something one believes to be false, thereby proposing that it becomes common ground. This paper shows that Stokke’s proposal is unable to draw the right distinctions about insincere performative utterances. The objection also has repercussions on theories of assertion, because it poses a novel challenge to any attempt to define assertion as a proposal to update the common ground.

Assertions are our standard communicative tool for sharing and acquiring information. Recent empirical studies seemingly provide converging evidence that assertions are subject to a factive norm: you are entitled to assert a proposition p only if p is true. All these studies, however, assume that we can treat participants' judgments about what an agent 'should say' as evidence of their intuitions about assertability. This paper argues that this assumption is incorrect, so that the conclusions drawn in these studies are unwarranted. (...) It shows that most people do not interpret statements about what an agent 'should say' as statements about assertability, but rather as statements about what is in the agent's interest to do. It identifies some effective measures to force the intended reading of statements about what an agent 'should say', and shows that when these measures are implemented, people's judgments consistently and overwhelmingly align with non-factive accounts of assertion. (shrink)

In a series of articles (Pagin, 2004, 2009), Peter Pagin has argued that assertion is not a social speech act, introducing a method (which we baptize ‘the P-test’) designed to refute any account that defines assertion in terms of its social effects. This paper contends that Pagin's method fails to rebut the thesis that assertion is social. We show that the P-test is both unreliable (because it overgenerates counterexamples) and counterproductive (because it ultimately provides evidence in favor of some social (...) accounts). Nonetheless, we contend that assertion is not fully social. We defend an intermediate view according to which assertion is only a partly social speech act: assertions both commit the speaker to a proposition (a social component) and present their propositional content as true (a non-social component). The upshot is that assertion is in some important respect social, although it cannot be defined solely in terms of its social effects. (shrink)

Malaria is a Plasmodium parasitic disease transmitted by infected female Anopheles mosquitoes. Climatic factors, such as temperature, humidity, rainfall, and wind, have significant effects on the incidence of most vector-borne diseases, including malaria. The mosquito behavior, life cycle, and overall fitness are affected by these climatic factors. This paper presents the results obtained from investigating the optimal control strategies for malaria in the presence of temperature variation using a temperature-dependent malaria model. The study further identified the temperature ranges in four (...) different geographical regions of sub-Saharan Africa, suitable for mosquitoes. The optimal control strategies in the temperature suitable ranges suggest, on average, a high usage of both larvicides and adulticides followed by a moderate usage of personal protection such as bednet. The average optimal bednet usage mimics the solution profile of the mosquitoes as the mosquitoes respond to changes in temperature. Following the results from the optimal control, this study also investigates using a temperature-dependent model with insecticide-sensitive and insecticide-resistant mosquitoes the impact of insecticide-resistant mosquitoes on disease burden when temperature varies. The results obtained indicate that optimal bednet usage on average is higher when insecticide-resistant mosquitoes are present. Besides, the average bednet usage increases as temperature increases to the optimal temperature suitable for mosquitoes, and it decreases after that, a pattern similar to earlier results involving insecticide-sensitive mosquitoes. Thus, personal protection, particularly the use of bednets, should be encouraged not only at low temperatures but particularly at high temperatures when individuals avoid the use of bednets. Furthermore, control and reduction of malaria may be possible even when mosquitoes develop resistance to insecticides. (shrink)

All’interno del dibattito sulla definizione filosofica della menzogna, alcuni autori hanno sostenuto che mentire è sempre sbagliato. Margolis, in particolare, ha espresso la tesi radicale secondo cui “mentire è moralmente sbagliato” è una tautologia. Nella prima parte dell’articolo introduco la tesi di Margolis, e ne difendo la plausibilità contro le semplificazioni che ha subito all’interno del dibattito filosofico, mostrando che l’applicazione condizionale del predicato “sbagliato” consente di trattare in modo adeguato alcune menzogne intuitivamente giustificabili. Nella seconda parte argomento che, nonostante (...) questo stratagemma, non è possibile difendere la tesi che “mentire è moralmente sbagliato” sia una tautologia, perché bisognerebbe assumere che “mentire è moralmente sbagliato” sia una condizione necessaria fra quelle che definiscono il concetto stesso di menzogna. Questo non è desiderabile perché, come dimostro nella parte finale del mio articolo, ogni definizione di menzogna che incorpori requisiti morali nelle sue condizioni necessarie é destinata a contraddire le intuizioni del senso comune su che cos’é una menzogna. La conclusione è che la tesi che “mentire è moralmente è sbagliato” è una tautologia non può essere difesa, se non al prezzo, troppo alto, di ridefinire in modo controintuitivo il significato del termine “menzogna”. (shrink)

An alternative approach to analyze the nonrelativistic quantum dynamics of a rigid and extended charged particle taking into account the radiation reaction is discussed with detail. Interpretation of the field operators as annihilation and creation ones, theory of perturbations and renormalization are not used. The analysis is carried out in the Heisenberg picture with the electromagnetic field expanded in a complete orthogonal basis set of functions which allows the electromagnetic field to satisfy arbitrary boundary conditions. The corresponding coefficients are the (...) field operators which satisfy the usual commutation relations. A nonlinear equation of motion for the charged particle is obtained. A careful consideration of the quantum effects allows the derivation of a linear equation of motion which is free of both runaway solutions and preacceleration, even for a point charge. Also, the electromagnetic mass, which is defined as the coefficient of the acceleration operator, vanishes for a point particle. However, this does not mean that the results are free of ambiguities which are exhibited and discussed. (shrink)

Groups, like individuals, can communicate. They can issue statements, make promises, give advice. Sometimes, in doing so, they lie and deceive. The goal of this paper is to offer a precise characterisation of what it means for a group to make an assertion and to lie. I begin by showing that Lackey’s influential account of group assertion is unable to distinguish assertions from other speech acts, explicit statements from implicatures, and lying from misleading. I propose an alternative view, according to (...) which a group asserts a proposition only if it explicitly presents that proposition as true, thereby committing to its truth. This proposal is then put to work to define group lying. While scholars typically assume that group lying requires (i) a deceptive intent and (ii) a belief in the falsity of the asserted proposition, I offer a definition that drops condition (i) and significantly broadens condition (ii). (shrink)

This paper is divided into two parts. In the first part, I extend the traditional definition of lying to illocutionary acts executed by means of explicit performatives, focusing on promising. This is achieved in two steps. First, I discuss how the utterance of a sentence containing an explicit performative such as “I promise that Φ ” can count as an assertion of its content Φ . Second, I develop a general account of insincerity meant to explain under which conditions a (...) given illocutionary act can be insincere, and show how this applies to promises. I conclude that a promise to Φ is insincere (and consequently a lie) only if the speaker intends not to Φ , or believes that he will not Φ , or both. In the second part, I test the proposed definition of lying by promising against the intuitions of ordinary language speakers. The results show that, unlike alternative accounts, the proposed definition makes the correct predictions in the cases tested. Furthermore, these results challenge the following necessary conditions for telling a lie with content p: that you have to assert p directly; that you have to believe that p be false; that p must be false; that you must aim to deceive the addressee into believing that p. (shrink)

A new definition of lying is gaining traction, according to which you lie only if you say what you know to be false. Drawing inspiration from “New Evil Demon” scenarios, I present a battery of counterexamples against this “Knowledge Account” of lying. Along the way, I comment upon the methodology of conceptual analysis, the moral implications of the Knowledge Account, and its ties with knowledge-first epistemology.

How can we capture the intuitive distinction between lying and misleading? According to a traditional view, the difference boils down to whether the speaker is saying (as opposed to implying) something that they believe to be false. This view is subject to known objections; to overcome them, an alternative view has emerged. For the alternative view, what matters is whether the speaker can consistently deny that they are committed to knowing the relevant proposition. We point out serious flaws for this (...) alternative view, and sketch a simpler alternative that incorporates key insights of the traditional view. (shrink)

The concept of a communal type of privacy shared by interconnected social groups has wide applications in the healthcare field, specifically in genetic testing and genetic data privacy (Pyrrho, Cam...

Speech acts are governed by a variety of illocutionary norms. Building on Sbisà’s (2019) work, this chapter attempts to develop a common framework to study them. Four families of illocutionary rules are identified: (i) Validity rules set conditions for (actual) performance; (ii) Cooperative rules set conditions for cooperative performance; (iii) Illocutionary goals set conditions for successful performance; (iv) Illocutionary obligations set conditions for compliance. Illocutionary rules are often taken to play a constitutive role: speech acts are said to be constituted (...) by the unique set of rules that regulates them. Against this view, it is argued that many illocutionary rules are instead best construed as rationally derivable expectations of cooperation. This alternative paradigm provides fertile ground to reconcile scholarly disagreement between speech act theorists, and yields a promising explanation of how illocutionary norms are learned and evolve through time. (shrink)

Can fictions make genuine assertions about the actual world? Proponents of the ‘Assertion View’ answer the question affirmatively: they hold that authors can assert, by means of explicit statements that are part of the work of fiction, that something is actually the case in the real world. The ‘Nonassertion’ View firmly denies this possibility. In this paper, I defend a nuanced version of the Nonassertion View. I argue that even if fictions cannot assert, they can indirectly communicate that what is (...) recounted as fictional is actually true. I show that this view is supported by independent linguistic data, and that it is able to defuse the objections that are typically raised against the Nonassertion View. I conclude by showing that this position has some interesting implications for testimonial cognitivism about fiction. (shrink)

What is lying? This entry provides a general overview of scholarly attempts to define lying in terms of necessary and sufficient conditions. First, it addresses the distinction between lying and misleading, considering whether only explicit statements can be lies. The second topic is insincerity, and how it can vary in degrees under conditions of uncertainty. Its final part discusses whether lying requires an intent to deceive and genuine assertoric force.

This thesis addresses philosophical problems concerning improper assertions. The first part considers the issue of defining lying: here, against a standard view, I argue that a lie need not intend to deceive the hearer. I define lying as an insincere assertion, and then resort to speech act theory to develop a detailed account of what an assertion is, and what can make it insincere. Even a sincere assertion, however, can be improper (e.g., it can be false, or unwarranted): in the (...) second part of the thesis, I consider these kinds of impropriety. An influential hypothesis maintains that proper assertions must meet a precise epistemic standard, and several philosophers have tried to identify this standard. After reviewing some difficulties for this approach, I provide an innovative solution to some known puzzles concerning the permissibility of false assertions. In my view, assertions purport to aim at truth, but they are not subject to a norm that requires speakers to assert a proposition only if it is true. (shrink)

Arguably, a theory of assertion should be able to provide (i) a definition of assertion, and (ii) a set of conditions for an assertion to be appropriate. This paper reviews two strands of theories that have attempted to meet this challenge. Commitment-based accounts à la Peirce define assertion in terms of commitment to the truth of the proposition. Restriction-based accounts à la Williamson define assertion in terms of the conditions for its appropriate performance. After assessing the suitability of these projects (...) to meet the desiderata of a theory of assertion, I argue that a speech act theoretic account à la Searle is more suitable for this purpose: it integrates the core intuitions of both restriction-based and commitment-based accounts while avoiding their respective problems, and has the further advantage of determining how assertion fits into a more general theory of illocutionary acts. (shrink)

In the philosophical debate on lying, there has generally been agreement that either the speaker believes that his statement is false, or he believes that his statement is true. This article challenges this assumption, and argues that lying is a scalar phenomenon that allows for a number of intermediate cases – the most obvious being cases of uncertainty. The first section shows that lying can involve beliefs about graded truth values (fuzzy lies) and graded beliefs (graded-belief lies). It puts forward (...) a new definition to deal with these scalar parameters, that requires that the speaker asserts what he believes more likely to be false than true. The second section shows that statements are scalar in the same way beliefs are, and accounts for a further element of scalarity, illocutionary force. (shrink)

In the philosophical literature on the definition of lying, the analysis is generally restricted to cases of flat-out belief. This chapter considers the complex phenomenon of lies involving partial beliefs – beliefs ranging from mere uncertainty to absolute certainty. The first section analyses lies uttered while holding a graded belief in the falsity of the assertion, and presents a revised insincerity condition, requiring that the liar believes the assertion to be more likely to be false than true. The second section (...) analyses assertions that express graded beliefs, exploring how mitigation and reinforcement can alter the insincerity conditions for lying. The last section considers the case of lies that attack certainty (knowledge-lies), understood as attempt to alter the hearer's graded beliefs. (shrink)

The goal of this paper is to describe the mechanism of the public perception of risk of artificial intelligence. For that we apply the social amplification of risk framework to the public perception of artificial intelligence using data collected from Twitter from 2007 to 2018. We analyzed when and how there appeared a significant representation of the association between risk and artificial intelligence in the public awareness of artificial intelligence. A significant finding is that the image of the risk of (...) AI is mostly associated with existential risks that became popular after the fourth quarter of 2014. The source of that was the public positioning of experts who happen to be the real movers of the risk perception of AI so far instead of actual disasters. We analyze here how this kind of risk was amplified, its secondary effects, what are the varieties of risk unrelated to existential risk, and what is the dynamics of the experts in addressing their concerns to the audience of lay people. (shrink)

Can fictions lie? According to a classic conception, works of fiction can never contain lies, since their content is not presented as true, nor is it meant to deceive us. But this classic view can be challenged. Sometimes fictions appear to make claims about the actual world, and these claims can be designed to convey falsehoods, historical misconceptions, and even pernicious stereotypes. Should we conclude that some fictional statements are lies? This article introduces two views that support a positive answer, (...) and two that support a negative one. After examining various ways in which fictions can deceive, it concludes in favour of the view that fictional statements can mislead, but never lie. (shrink)

Un'introduzione all'epistemologia della testimonianza e ai testi contenuti nella sezione.

Over the past few years, several proposals aimed at procuring human pluripotent (embryonic-like) stem cells without involving the destruction of a human embryo have been proposed and widely discussed. This article focuses on a basic aspect of the debate, namely the plausibility of one or more of these new proposals being able to meet the ethical requirements that those who regard the human embryo as sacred have tried to impose on stem cells research in the last ten years. The thesis (...) of the article is that focusing the discussion only on the sources of stem cells has prevented a full understanding of the foundation, meaning and scope of these ethical requirements. To substantiate this thesis, the article takes into consideration two issues: the first has to do with the potential of the cells obtained through some of the new approaches (iPS included), the second (and decisive) with the argument of the ‘indirect complicity’, applied to the use of ‘contaminated’ knowledge. (shrink)

The Sārasaṅgaha is a Pāli text of XIIth–XIIIth century by the Sinhalese monk Siddhattha Thera. Its themes include the aspiration to become a Buddha, shrines, meditation, theories on rain, wind, gender and more. The main body consists of citations from the Nikāyas, the Jātakas, the Visuddhimagga and above all, from commentarial literature. By analysing the way the Sārasaṅgaha refers to and establishes a dialogue with the quoted works, this paper promotes a new assessment of the cultural and textual tendencies that (...) influenced the development of Buddhist literature especially in the Middle Ages. In particular, the analysis of this text and the quotations of which it is composed reveals the importance of commentarial literature, a literary genre that only recently has attracted the attention of Pāli scholars. (shrink)

Improvisation is specific of some arts, like jazz music, but, as a practice, it is part of almost all complex human practices, included the professional ones, because of the role it plays in transforming and developing them. Improvisation plays an important role even in philosophical discourse, whose process is comparable with the jazz music process. However, in both fields a circularity arises, which creates a problem concerning the validity and the normativity of their whole processes. A reflection on the two (...) fields suggests some possible solution paths. (shrink)

Business Ethics: A European Review, EarlyView.