Sophists and rhetoricians like Gorgias are often accused of disregarding truth and rationality: their speeches seem to aim only at effective persuasion, and be constrained by nothing but persuasiveness itself. In his extant texts Gorgias claims that language does not represent external objects or communicate internal states, but merely generates behavioural responses in people. It has been argued that this perspective erodes the possibility of rationally assessing speeches by making persuasiveness the only norm, and persuasive power the only virtue, of (...) speech. Against this view, I show how Gorgias’ texts support a robust normativity of language that goes well beyond persuasion while remaining non-representational. Gorgias’ claims that a speech can be persuasive and false, or true and unpersuasive, reveal pragmatic, epistemic, and agonistic constraints on the validity of speech that are neither representational nor reducible to sheer persuasiveness. (shrink)

The book presents a thoroughly elaborated logical theory of generalized truth-values understood as subsets of some established set of truth values. After elucidating the importance of the very notion of a truth value in logic and philosophy, we examine some possible ways of generalizing this notion. The useful four-valued logic of first-degree entailment by Nuel Belnap and the notion of a bilattice constitute the basis for further generalizations. By doing so we elaborate the idea of a multilattice, and most notably, (...) a trilattice of truth values – a specific algebraic structure with information ordering and two distinct logical orderings, one for truth and another for falsity. Each logical order not only induces its own logical vocabulary, but determines also its own entailment relation. We consider both semantic and syntactic ways of formalizing these relations and construct various logical calculi. (shrink)

Current epistemological dogma has it that the twin goalsof believing truths and avoiding errors exhaust our cognitive aspirations.On such a view, (call it the TG view) the only evaluationsthat count as genuinely epistemological are those that evaluatesomething (a belief, believer, set of beliefs, a cognitivetrait or process, etc.) in terms of its connection to thesetwo goods. In particular, this view implies that all theepistemic value of knowledge must be derived from thevalue of the two goals cited in TG. I argue (...) thatthis implication is false, and thus that the TG view must be abandoned. I propose a candidate to replacethe TG view that makes better sense of the value ofknowledge. (shrink)

What makes it true when we say that something is not the case? Truthmaker maximalists think that every truth has a truthmaker—some fact in the world—that makes it true. No such facts can be found for the socalled negative truths. If a proposition is true when it has a truthmaker, then it would be false when it has no truthmaker. I therefore argue that negative truths, such as t<p>, are best understood as falsehoods, f<p>.

According to the Ignorance Factivity Thesis, for every proposition p, one is ignorant of p only if p is a truth. By contrast, according to the Ignorance Non-Factivity Thesis, it is false that, for every proposition p, one is ignorant of p only if p is a truth. I argue that, on balance, the case for the latter thesis is stronger than the case for the former.

Current epistemological dogma has it that the twin goalsof believing truths and avoiding errors exhaust our cognitive aspirations. On such a view, (call it the "TG view") the only evaluations that count as genuinely epistemological are those that evaluate something (a belief, believer, set of beliefs, a cognitive trait or process, etc.) in terms of its connection to these two goods. In particular, this view implies that all the epistemic value of knowledge must be derived from the value of the (...) two goals cited in TG. I argue that this implication is false, and thus that the TG view must be abandoned. I propose a candidate to replace the TG view that makes better sense of the value of knowledge. (shrink)

On the basis of careful textual exegesis and philosophical analysis, and contrary to the received view, Mark R. Wheeler demonstrates that Aristotle presents and systematically explicates his definition of the essence of the truth in the Metaphysics. Aristotle states the nominal definitions of the terms "truth" and "falsehood" as part of his arguments in defense of the logical axioms. These nominal definitions express conceptions of truth and falsehood his philosophical opponents would have recognized and accepted in the context (...) of dialectical argument. On the basis of these nominal definitions, Aristotle develops his definitions of the essences of truth and falsehood--his "real" definitions of truth and falsehood. Aristotle's methodical exposition of his essential definitions of truth and falsehood in the Metaphysics serves as a well-developed example of how his philosophical inquiry starts with nominal definitions and ends with real definitions. Wheeler also argues for the novel claim that Aristotle defines the most fundamental kind of truth in terms of accurate measurement. Aristotle's metrical conception of truth serves as the theoretical basis for specifying the truth conditions of various assertions, for identifying the sorts of beings implicated in these truth conditions, and for explaining the nature of approximate truth and falsehood. Far from offering us a minimal account of truth, Wheeler shows how Aristotle offers us a sophisticated and metrical theory of truth. (shrink)

Narratives are never meant to be neutral in their rhetorical intent. They have power not onlyto reveal realities and prevail worldviews but also to create new realities and new worldviewsby refuting illusions and falsehood, and affirming the truth. The Judith narrative is a goodexample for the exploration of this claim. This article contributes by employing the thematiclevel of analysis, the veridictory square in particular, of the Greimassian approach to narratives,to map out the possible illusions and affirming the truth within (...) the second temple Judaism.The study of the veridictory square as informed by the level of analysis, mentioned above,seems to persuade the reader by first, extracting the truth from illusion and thereafter exposingand shaming falsehood in Judith. Subsequently, the article asserts that Judith is not neutral in itsintent but was designed to deal with illusive ideas that might have been impacting the wellbeingof the second temple Judaism. (shrink)

Sextus Empiricus ascribes to Epicurus a curious account of truth and falsehood, according to which these characteristics belong to things in the world about which one speaks, not to what one says about them. I propose an interpretation that takes this account seriously and explains the connection between truth and existence that the Epicureans also seem to recognise. I then examine a second Epicurean account of truth and falsehood and show how it is related to the first.

The logic with independent truth and falsehood operators TFL is proposed. In TFL(→) standard truth-conditions for the implication are adopted. Nevertheless the laws of classical logic are not valid. In this language more then 107 different binary connectives can be defined. So this logic can be treated as universal logic relatively to the class of sentential logics.

We discuss misinformation about “the liar antinomy” with special reference to Tarski’s 1933 truth-definition paper [1]. Lies are speech-acts, not merely sentences or propositions. Roughly, lies are statements of propositions not believed by their speakers. Speakers who state their false beliefs are often not lying. And speakers who state true propositions that they don’t believe are often lying—regardless of whether the non-belief is disbelief. Persons who state propositions on which they have no opinion are lying as much as those who (...) state propositions they believe to be false. Not all lies are statements of false propositions—some lies are true; some have no truth-value. People who only occasionally lie are not liars: roughly, liars repeatedly and habitually lie. Some half-truths are statements intended to mislead even though the speakers “interpret” the sentences used as expressing true propositions. Others are statements of propositions believed by the speakers to be questionable but without revealing their supposed problematic nature. The two “formulations” of “the antinomy of the liar” in [1], pp.157–8 and 161–2, have nothing to do with lying or liars. The first focuses on an “expression” Tarski calls ‘c’, namely the following. -/- c is not a true sentence -/- The second focuses on another “expression”, also called ‘c’, namely the following. -/- for all p, if c is identical with the sentence ‘p’, then not p -/- Without argumentation or even discussion, Tarski implies that these strange “expressions” are English sentences. [1] Alfred Tarski, The concept of truth in formalized languages, pp. 152–278, Logic, Semantics, Metamathematics, papers from 1923 to 1938, ed. John Corcoran, Hackett, Indianapolis 1983. -/- https://www.academia.edu/12525833/Sentence_Proposition_Judgment_Statement_and_Fact_Speaking_about_th e_Written_English_Used_in_Logic. (shrink)

"The Sophist seems to be concerned with two things: being and nonbeing, on the one hand, and true and false speech, on the other. If speech is either true or false speech, it seems not even plausible for being to be either being or nonbeing, since we would then be compelled to say that nonbeing is as much being as false speech is speech. If nonbeing, however, is being, then nonbeing cannot be nonbeing, for otherwise the falseness of false speech (...) would not consist in its saying 'nonbeing.' And, in turn, if nonbeing is nonbeing, the falseness of' false speech again cannot consist in its saying 'nonbeing,' for it would then not be saying anything. If we then say that nonbeing is appearing, and appearing is not unqualified nonbeing, being is being and appearing, and we want to distinguish between the strict identity which belongs to being and the likeness of' nonbeing to the strict identity of being. We say, then, 'Here is Socrates himself' and 'Here is a likeness of Socrates.' Everything in the likeness of Socrates that is a likeness of' Socrates himself will generate a true speech of Socrates identical to another speech true of Socrates himself. Everything, how ever, in the likeness of Socrates that is not a likeness of Socrates himself yields a false speech of Socrates. Among the false speeches of Socrates would be, for example, the paint on Socrates' portrait but not the color of the paint that is true of Socrates himself. The paint, then, without the color (per impossibile), is not true of Socrates, but it certainly is not a likeness of Socrates either. The paint must be together with its color in order for it to be both a likeness of Socrates and nonbeing, but it seems to be utterly mysterious how by being together it can be that and by being apart it ceases to be anything of the sort. If every thing then is just what it is and nothing else, it is impossible for there to be any speech, either true or false, for speech is impossible unless something can be put together with something else.. (shrink)

In Philosophical Logic, the Liar Paradox has been used to motivate the introduction of both truth value gaps and truth value gluts. Moreover, in the light of “revenge Liar” arguments, also higher-order combinations of generalized truth values have been suggested to account for so-called hyper-contradictions. In the present paper, Graham Priest's treatment of generalized truth values is scrutinized and compared with another strategy of generalizing the set of classical truth values and defining an entailment relation on the resulting sets of (...) higher-order values. This method is based on the concept of a multilattice. If the method is applied to the set of truth values of Belnap's “useful four-valued logic”, one obtains a trilattice, and, more generally, structures here called Belnap-trilattices. As in Priest's case, it is shown that the generalized truth values motivated by hyper-contradictions have no effect on the logic. Whereas Priest's construction in terms of designated truth values always results in his Logic of Paradox, the present construction in terms of truth and falsity orderings always results in First Degree Entailment. However, it is observed that applying the multilattice-approach to Priest's initial set of truth values leads to an interesting algebraic structure of a “bi-and-a-half” lattice which determines seven-valued logics different from Priest's Logic of Paradox. (shrink)

CONTRASTING PREJUDICES TRUTH AND FALSEHOOD How can one say something false? How can one even think such a thing? Since, for example, all men are mortal, ...

Judgments of the rationality of beliefs must take the costs of acquiring and possessing beliefs into consideration. In that case, certain false beliefs, especially those that are associated with the benefits of a cohesive community, can be seen to be useful for an agent and perhaps instrumentally rational to hold. A distinction should be made between excusable misbeliefs, which a rational agent should tolerate, and misbeliefs that are defensible in their own right because they confer benefits on the agent. Likely (...) candidates for such misbeliefs are to be found in the realm of nationalism and religion, where the possession costs of true beliefs are high, and where collective beliefs in falsehoods may allow for a cohesive community. We discuss the paradoxes of reflective awareness involved in the idea of deliberately embracing falsehoods. More rigorous, fully reflective concepts of rationality would still disallow false beliefs, but such demanding versions of rationality would commit agents to pay large costs, thereby weakening the motivation for acquiring true beliefs. (shrink)

Nietzsche often gives the impression that all human beliefs are false. Some scholars, like Maudemarie Clark, believe that such a “falsification thesis” is unacceptable and try to limit Nietzsche's commitment to it, claiming that he abandons it in his very last works. Others, like Lanier Anderson and Nadeem Hussain, take it in ways that make it true and locate it in all. I argue that the view that is common to both approaches—that Nietzsche held that thesis in the first place—is (...) unjustified. To that end, I interpret the texts where these scholars claim to find the thesis in a way that shows that they do not commit Nietzsche to it, and I offer some reasons for thinking that this is a more fruitful way of interpreting his views on the importance of truth—and falsehood—and their function in the economy of human life. (shrink)

According to the safety account of knowledge, one knows that p only if one’s belief could not easily have been false. An important issue for the account is whether we should only examine the target belief when evaluating whether a belief is safe or not. In this paper, it is argued that, if we should only examine the target belief, then the account fails to account for ignorance of necessary truths. But, if we should also examine beliefs in other relevant (...) propositions, then the account fails to account for knowledge from falsehood. Therefore, the safety account of knowledge is undermined by knowledge from falsehood and ignorance of necessary truths. (shrink)

It's a truism to say that politicians lie. They twist the truth, exaggerate and spin. But blatant lying has now become the norm, led by Donald Trump and carried on by Boris Johnson and Scott Morrison. Combine this with an all-out assault on the truth in public debate along with the biggest communications revolution since the printing press, and you have a disaster in real time: a sea of fake news, hyper-partisanship and polarisation. No society or democracy can function without (...) trust, and the consequences of this profound shift are clear. The first step to a remedy is in understanding both the liars and the environments in which they lie. Lies and Falsehoods does exactly that, in this account of how we found ourselves in this fractured post-truth world, and how we might get out. (shrink)

Critical notice of Puddifoot, Katherine. 2021. How Stereotypes Deceive Us. NY: OUP.--------- -/- Kathy Puddifoot makes a compelling and enlightening case for a striking pair of claims: 1) false stereotypes sometimes steer us to the truth, while 2) true stereotypes often lead us into error. This is a wonderful book, a seamless integration of epistemology with ethics, of philosophy with social science, and of “mainstream” or “Western analytic” approaches with marginalized and underappreciated contributions from critical social traditions, especially black feminism. (...) The integrations are so seamless, in fact, as to give the reader the impression that Puddifoot is simply picking up conversations already underway. Instead, she has done a tremendous service in bringing representatives from wide-ranging, often-siloed disciplines into dialogue. Another virtue of Puddifoot’s book is how thoroughly it maps out the actual and possible views and logical spaces revolving around each topic she addresses. How Stereotypes Deceive Us could therefore be used to introduce budding epistemologists to the field, as it offers clear and careful explanations of leading approaches to a range of topics, including virtue epistemology, theory of mind, and more. (shrink)

There is a great deal of academic literature, much of it coming from the social sciences and from social epistemology, which presents itself as addressing a very general problem: the problem of excessive falsehood. Falsehood comes in two general forms: false statements and false beliefs. Of course, falsehood, in both these forms, has always been with us, but it is often supposed to be on the rise. I will argue that there is no new or growing problem (...) of excessive falsehood (variously referred to as the problem of “misinformation” or “fake news”). Furthermore, we should reject the very idea that falsehood as such is a problem, and hence we should reject the idea of coming up with public policy responses to this so-called problem. I argue that the idea that falsehood is a problem is a natural consequence of the idea that it is virtuous to love truth and hate falsehood. I argue that, although there are several virtues related to truth (such as the intellectual virtue of curiosity and the moral virtue of honesty), a love of truth and hatred of falsehood are not themselves virtues. (shrink)

I argue that ‘conspiracy theory’ and ‘conspiracy theorist’ as commonly employed are ‘tonkish’ terms (as defined by Arthur Prior and Michael Dummett), licensing inferences from truths to falsehoods; indeed, that they are mega-tonkish terms, since their use is governed by different and competing sets of introduction and elimination rules, delivering different and inconsistent results. Thus ‘conspiracy theory’ and ‘conspiracy theorist’ do not have determinate extensions, which means that generalizations about conspiracy theories or conspiracy theorists do not have determinate truth-values. Hence (...) conspiracy theory theory – psychological or social scientific research into conspiracy theorists and what is wrong with them – is often about as intellectually respectable as an enquiry into bastards and what makes them so mean. (shrink)

En el artículo se caracteriza una clase de relaciones binarias para que éstas puedan representar las comparaciones de enunciados que un agente puede plantear y resolver de acuerdo con su mayor o menor grado de aproximación a la verdad. Con ello se espera poder analizar con mayor detalle el peso que puede terminar teniendo en su evaluación metodológica el grado de aproximación a la verdad de los modelos teórico-económicos. De todas formas, el propósito inmediato del artículo es el de ofrecer (...) una propuesta más general y, sobre todo, mucho más sencilla que las presentadas en otros dos trabajos anteriores del autor. Por otra parte, el concepto de aproximación a la verdad que se maneja es diferente del vinculado con la noción poperiana de verosimilitud.In this paper, we characterize a class of binary relations to represent the comparisons which an agent can make between statements according to their degree of approximation to the truth. This class of relations, we hope, can help to analyse how much can weight the degree of approximation of economic theoretical models in their methodological assesment. In any case, the immediate purpose of the paper is to offer a proposal easier and more general than two other worked up earlier by the author. On the other hand, our concept of approximation to the truth differs from that linked with the popperian notion of verosimilitude. (shrink)

The notion of more truth, or of more truth and less falsehood, is central to epistemology. Yet, I argue, we have no idea what this consists in, as the most natural or obvious thing to say—that more truth is a matter of a greater number of truths, and less falsehood is a matter of a lesser number of falsehoods—is ultimately implausible. The issue is important not merely because the notion of more truth and less falsehood is central (...) to epistemology, but because an implicit, false picture of what this consists in underpins and gives shape to much contemporary epistemology. (shrink)

This paper presents an anti‐realist account of fictional objects. Arguing for the involvement of non‐veridical prepositional attitude ascriptions in the understanding of fiction, I maintain that there is no need to invoke Meinongian objects, possibilia or abstract objects for this purpose. In addition I argue against object dependent views . I make a case for empty names playing a more significant role than that accorded on direct reference accounts of names. I close by noting points of similarity and of difference (...) with Amie Thomasson and with Kendall Walton. (shrink)

This paper presents an anti‐realist account of fictional objects. Arguing for the involvement of non‐veridical prepositional attitude ascriptions in the understanding of fiction, I maintain that there is no need to invoke Meinongian objects, possibilia or abstract objects for this purpose. In addition I argue against object dependent views. I make a case for empty names playing a more significant role than that accorded on direct reference accounts of names. I close by noting points of similarity and of difference with (...) Amie Thomasson and with Kendall Walton. (shrink)

"Why do we lie? What types of lies are there? What are the consequences of lying? What methods are used to detect lies? And when is it okay or even good to lie? From forgeries and hoaxes to plagiarism and placebos, [this book] offers historical anecdotes, scientific studies, and sociocultural analyses to help unpack the complex world of untruths"--Amazon.com.

Welcome to the Post-Truth era-- a time in which the art of the lie is shaking the very foundations of democracy and the world as we know it. The Brexit vote; Donald Trump's victory; the rejection of climate change science; the vilification of immigrants; all have been based on the power to evoke feelings and not facts. So what does it all mean and how can we champion truth in in a time of lies and 'alternative facts'? In this eye-opening (...) and timely book, Post-Truth is distinguished from a long tradition of political lies, exaggeration and spin. What is new is not the mendacity of politicians but the public's response to it and the ability of new technologies and social media to manipulate, polarise and entrench opinion. Where trust has evaporated, conspiracy theories thrive, the authority of the media wilt and emotions matter more than facts. Now, one of the UK's most respected political journalists, Matthew d'Ancona investigates how we got here, why quiet resignation is not an option and how we can and must fight back. (shrink)

In this paper, I provide an interpretation of the symploke ton eidon at Soph. 259e. My goal is to show that the specific metaphysical view expressed by the interweaving of forms best accounts for Plato’s explanation of truth and falsehood. In the first section, I introduce the fundamentals of the interpretation of the greatest kinds and their functions. After that, I propose an interpretation of the assertion at 259e, the upshot of which is that the interweaving of forms only (...) deals with extra-linguistic items, that it is related to both truth and meaning of linguistic items, in a very complex way which I aim to explain throughout the paper, and that it never involves sensible particulars. In the second section, I put forward my reading of the Stranger’s description of how logoi are structured and how they work. I pay particular attention to the view that words reveal being when they intertwine to form a statement. In the third section, I interpret the statements concerning Theaetetus. My goal is to advance a new reading of the specific role that kinds and their interweaving play with regard to the truth and falsehood of the statements concerning Theaetetus. The result is the very specific view that the kinds, which are the separated ontological cause of what happens in space and time, are the grounds of both the truth and the meaning of statements. (shrink)

In De Interpretatione 6-9, Aristotle considers three logical principles: the principle of bivalence, the law of excluded middle, and the rule of contradictory pairs (according to which of any contradictory pair of statements, exactly one is true and the other false). Surprisingly, Aristotle accepts none of these without qualification. I offer a coherent interpretation of these chapters as a whole, while focusing special attention on two sorts of statements that are of particular interest to Aristotle: universal statements not made universally (...) and future particular statements. With respect to the former, I argue that Aristotle takes them to be indeterminate and so to violate the rule of contradictory pairs. With respect to the latter, the subject of the much discussed ninth chapter, I argue that the rule of contradictory pairs, and not the principle of bivalence, is the focus of Aristotle's refutation. Nevertheless, Aristotle rejects bivalence for future particular statements. (shrink)