The aim of this paper is to sketch a theory of justified belief. What I have in mind is an explanatory theory, one that explains in a general way why certain beliefs are counted as justified and others as unjustified. Unlike some traditional approaches, I do not try to prescribe standards for justification that differ from, or improve upon, our ordinary standards. I merely try to explicate the ordinary standards, which are, I believe, quite different from those (...) of many classical, e. g., ‘Cartesian’, accounts. (shrink)

Critical thinking is considered to be a central epistemic aim of education. The claim may be about skills, but also about the state of justified belief. In opposition to this latter view, Alvin Goldman claimed that justification is only a means to true belief and that the only fundamental epistemic aim of education is true belief. Harvey Siegel’s response defended the view that justified belief is in fact a fundamental epistemic aim of education. In (...) a recent article, Alessia Marabini and Luca Moretti analyse Siegel’s arguments, reject all of them, and provide two new ones. I defend one of Siegel’s arguments against their objection, raise some doubts about one of their own arguments, and give an additional argument against Goldman’s view. (shrink)

People increasingly form beliefs based on information gained from automatically filtered Internet ‎sources such as search engines. However, the workings of such sources are often opaque, preventing ‎subjects from knowing whether the information provided is biased or incomplete. Users’ reliance on ‎Internet technologies whose modes of operation are concealed from them raises serious concerns about ‎the justificatory status of the beliefs they end up forming. Yet it is unclear how to address these concerns ‎within standard theories of knowledge and justification. (...) To shed light on the problem, we introduce a ‎novel conceptual framework that clarifies the relations between justified belief, epistemic responsibility, ‎action, and the technological resources available to a subject. We argue that justified belief is subject to ‎certain epistemic responsibilities that accompany the subject’s particular decision-taking circumstances, ‎and that one typical responsibility is to ascertain, so far as one can, whether the information upon which ‎the judgment will rest is biased or incomplete. What this responsibility comprises is partly determined by ‎the inquiry-enabling technologies available to the subject. We argue that a subject’s beliefs that are ‎formed based on Internet-filtered information are less justified than they would be if she either knew how ‎filtering worked or relied on additional sources, and that the subject may have the epistemic ‎responsibility to take measures to enhance the justificatory status of such beliefs.‎. (shrink)

Recent knowledge first epistemology features a number of different accounts of justified belief, including a knowledge first reductionism according to which to believe justifiably is to know Sutton, Littlejohn, Williamson, a knowledge first version of accessibilism Millar and a knowledge first version of mentalism Bird. This paper offers a knowledge first version of virtue epistemology and argues that it is preferable to its knowledge first epistemological rivals: only knowledge first virtue epistemology manages to steer clear of a number (...) of problems that its competition encounters. (shrink)

According to Fumerton in his "How Does Perception Justify Belief?", it is misleading or wrong to say that perception is a source of justification for beliefs about the external world. Moreover, reliability does not have an essential role to play here either. I agree, and I explain why in section 1, using novel considerations about evil demon scenarios in which we are radically deceived. According to Fumerton, when it comes to how sensations or experiences supply justification, they do not (...) do so on their own, and instead only do so only in conjunction with support for background beliefs about how the sensations or experiences are best explained. Here I disagree. In section 2, I first clarify the question of whether sensations or experiences provide justification on their own. I then respond to Fumerton’s arguments that use considerations about concept-possession and about how to close possible gaps between experience and truth. In section 3, I develop my main concern about his positive view, where that concern also brings out some of the merits of the view that experiences do justify beliefs about the external world on their own. (shrink)

Under what conditions is a belief inferentially justified? A partial answer is found in Justification from Justification : a belief is inferentially justified only if all of the beliefs from which it is essentially inferred are justified. After reviewing some important features of JFJ, I offer a counterexample to it. Then I outline a positive suggestion for how to think about inferentially justified beliefs while still retaining a basing condition. I end by concluding that (...) epistemologists need a model of inferentially justified belief that is more permissive and more complex than JFJ. (shrink)

Why should we believe that perceptions justify beliefs? One argument starts with the premise that sentences of the form “a looks F” may be used to justify conclusions of the form “a is F”. I will argue that this argument for the claim that perceptions justify beliefs founders on the following dilemma: Either “a looks F” does not report the content of a perception or, if it does, then it does not justify the conclusion “a is F”.

In “Can it be rational to have faith?”, it was argued that to have faith in some proposition consists, roughly speaking, in stopping one’s search for evidence and committing to act on that proposition without further evidence. That paper also outlined when and why stopping the search for evidence and acting is rationally required. Because the framework of that paper was that of formal decision theory, it primarily considered the relationship between faith and degrees of belief, rather than between (...) faith and belief full stop. This paper explores the relationship between rational faith and justified belief, by considering four prominent proposals about the relationship between belief and degrees of belief, and by examining what follows about faith and belief according to each of these proposals. It is argued that we cannot reach consensus concerning the relationship between faith and belief at present because of the more general epistemological lack of consensus over how belief relates to rationality: in particular, over how belief relates to the degrees of belief it is rational to have given one’s evidence. (shrink)

Abstract: When do we meet the standard of proof in a criminal trial? Some have argued that it is when the guilt of the defendant is sufficiently probable on the evidence. Some have argued that it is a matter of normic support. While the first view provides us with a nice account of how we ought to manage risk, the second explains why we shouldn’t convict on the basis of naked statistical evidence alone. Unfortunately, this second view doesn’t help us (...) understand how we should manage risk (e.g., the risk of violating rights against wrongful conviction) and faces counterexamples of its own. I shall defend an alternative approach that builds on the strengths of these two accounts. On the approach defending here, it is objectively suitable to punish iff we know a defendant to be guilty. To determine what is consistent with procedural justice and to determine what we prospectively ought to do, we need to think about the risks we face of deviating from this objective ideal. (shrink)

I defend the view that justified belief is preferable to plain belief only because the former enhances the likelihood that the belief is true: call that sort of justification truth-linked. A collection of philosophical theories either state outright that this is not so, imply it via other doctrines, or adopt a notion of truth that renders the link innocuous. The discussion proceeds as follows. Issues and various positions are outlined, and needed qualifications are entered (parts I-III). (...) We then note general shortcomings of all views rejecting the truth-link, and critically examine a powerful thought experiment underlying the rejection (part IV). In the final sections we explore two other challenges to the truth-link. First (part V), we consider forms of idealized justification theory that would imply the independence of justification from the relevant sort of truth conduciveness; next (part VI) we investigate a view, Pragmatism, which maintains that epistemic justification is sanctioned by ends other than a tendency towards truth. (shrink)

Certain examples involving negatively relevant evidence are trouble for reliabilists, since they show that reliability is not sufficient for justification. Two approaches for dealing with these examples within the reliabilist framework have been taken. Neither approach, however, can account for all cases involving nre. This I will argue. I will explain the two approaches briefly, then describe a counter example which calls for a difference approach. To handle the case I describe, one needs torequire that the agent's belief be (...) ‘internally acceptable’ as well as reliable.Many examples show that reliability is insufficient. Consider a modification of an example by Goldman, which he used to make a different point. Driving through the country, Andy looks to the right, sees a barn, and comes to believe that the object he sees is a barn. His belief, however, is not justified because he possesses nre, viz., his false, but justified, belief that the majority of bam-like objects in the area are barn facsimiles which, under the present visual circumstances, are almost indistinguishable from real barns. (shrink)

The New Demon World Objection claims that reliabilist accounts of justification are mistaken because there are justified empirical beliefs at demon worlds— worlds at which the subjects are systematically deceived by a Cartesian demon. In this paper, I defend strongly verific (but not necessarily reliabilist) accounts of justification by claiming that there are two ways to construct a theory of justification: by analyzing our ordinary concept of justification or by taking justification to be a theoretic term defined by its (...) role in the theory of knowledge. The former route is not promising because of the splintered nature of our ordinary concept of justification—or perhaps because there is no single such concept. On the other hand, if justification is defined by the role it plays in the theory of knowledge, then there is good reason to think that justification must be strongly truth-conductive since the term was introduced by Edmund Gettier to play the primary role in converting true belief into knowledge. And if that is right, then there will be no justified empirical belief at demon worlds. The real lesson of the demon world is then turned on its head: justification does not supervene on what one shares with one’s deceived doppelganger. (shrink)

The background to this paper is the question of how rational belief is possible in the light of the commonly presented infinite regress in reasons. The paper investigates the neglected question of whether this regress is vicious. I argue that given the genuine requirements of rational belief, The regress would require the rational believer to hold an infinity of beliefs, Which is impossible. The regress would not entail the rational believer holding an infinitely complex belief, Which, Admittedly, (...) Would be logically impossible. (shrink)

This book examines phenomenal conservatism, one of the most influential and promising internalist conceptions of non-inferential justification debated in current epistemology and philosophy of mind. It also explores the significance of the findings of this examination for the general debate on epistemic justification. According to phenomenal conservatism, non-inferential justification rests on seemings or appearances, conceived of as experiences provided with propositional content. Phenomenal conservatism states that if it appears to S that P, in the absence of defeaters, S thereby has (...) some justification for believing that P. This view provides the basis for foundationalism and many ordinary epistemic practices. This book sheds new light on phenomenal conservatism by assessing objections to it and examining epistemological merits and advantages attributed to it. In a nutshell, phenomenal conservatism is actually compatible with Bayesian reasoning, and it is unaffected by bootstrapping problems and challenges that appeal to the cognitive penetrability of perception. Nevertheless, appearance-based justification proves unstable or elusive and its antisceptical bite is more limited than expected. These difficulties could be surmounted if phenomenal conservatism were integrated with a theory of inferential justification. The book appeals to scholars and postgraduates in the field of epistemology and philosophy of mind who are interested in the rational roles of appearances. (shrink)

Reliabilist theories propose to analyse epistemic justification in terms of reliability. This paper argues that if we pay attention to the details of probability theory we find that there is no concept of reliability that can possibly play the role required by reliabilist theories. A distinction is drawn between the general reliability of a process and the single case reliability of an individual belief, And it is argued that neither notion can serve the reliabilist adequately.

Explanationism holds that a person's evidence supports a proposition just in case that proposition is part of the best available explanation for the person's evidence. I argue that explanationism faces a serious difficulty when it comes to justified beliefs about the future. Often, one's evidence supports some proposition about the future but that proposition is not part of the best available explanation for one's evidence. Attempts to defend explanationism against this charge are unattractive. Moving to a modified better contrastive (...) explanation account will help with these cases, but it will face other difficulties. (shrink)

One might think that its seeming to you that p makes you justified in believing that p. After all, when you have no defeating beliefs, it would be irrational to have it seem to you that p but not believe it. That view is plausible for perceptual justification, problematic in the case of memory, and clearly wrong for inferential justification. I propose a view of rationality and justified belief that deals happily with inference and memory. Appearances are (...) to be evaluated as ‘sound’ or ‘unsound.’ Only a sound appearance can give rise to a justified belief, yet even an unsound appearance can ‘rationally require’ the subject to form the belief. Some of our intuitions mistake that rational requirement for the belief’s being justified. The resulting picture makes it plausible that there are also unsound perceptual appearances. I suggest that to have a sound perceptually basic appearance that p, one must see that p. (shrink)

We propose a new topological semantics for evidence, evidence-based justifications, belief, and knowledge. Resting on the assumption that an agent’s rational belief is based on the available evidence, we try to unveil the concrete relationship between an agent’s evidence, belief, and knowledge via a rich formal framework afforded by topologically interpreted modal logics. We prove soundness, completeness, decidability, and the finite model property for the associated logics, and apply this setting to analyze key epistemological issues such as (...) “no false lemma” Gettier examples, misleading defeaters, undefeated justification versus undefeated belief, as well as the defeasibility theories of knowledge. (shrink)

We present a complete, decidable logic for reasoning about a notion of completely trustworthy evidence and its relations to justifiable belief and knowledge, as well as to their explicit justifications. This logic makes use of a number of evidence-related notions such as availability, admissibility, and “goodness” of a piece of evidence, and is based on an innovative modification of the Fitting semantics for Artemovʼs Justification Logic designed to preempt Gettier-type counterexamples. We combine this with ideas from belief revision (...) and awareness logics to provide an account for explicitly justified knowledge based on conclusive evidence that addresses the problem of omniscience. (shrink)

The paper offers a three-premise argument that a person with first-hand experience of possession and exorcism, such as an exorcist, can have a justified belief in the existence of demons. (1) “Exorcism involves a process by which the exorcist comes to believe that testimony is offered by a demon.” Cited for (1) are the Gospels, the Roman Ritual, some modern cases of exorcism, and exorcism practices in non-Christian contexts. (2) “If defeaters are absent, the exorcist may treat as (...) reliable the process by which he comes to believe that testimony is offered by a demon.” For (2) a case is offered that we have a reliable ability to identify when testimony is being offered and when it is being offered by particular types of agents, what is termed testifier-identification. (3) “In many cases of exorcism, defeaters are absent.” An inductive case is given for (3) by responding to possible defeaters, including several suggested recently by David Kyle Johnson. Therefore, in many cases of exorcism the exorcist may treat as reliable the processes by which he comes to believe that testimony is offered by a demon, and so can have a justified belief in the existence of demons. (shrink)

This paper presents a new argument for a form of contextualism about ‘justified belief’, the argument being based on considerations concerning the nature of belief. It is then argued that this form of contextualism, although it is true, cannot help to answer the threat of scepticism. However, it can explain many other puzzling phenomena: it can give an account of the linguistic mechanisms that determine how the extension of ‘justified belief’ shifts with context; it can (...) help to defuse some puzzles regarding the closure of justified belief under competent deduction; and it can give a plausible account of the role that practical concerns play in the thinking of a rational believer, allowing for a more plausible kind of "intellectualism" about justified belief. (shrink)

An attractive picture of the world is that some features are metaphysically fundamental and others are derivative, with the derivative features grounded in the fundamental features. But how do we have justified beliefs about which features are fundamental? What is the epistemology of fundamentality? I sketch a response in this paper. The guiding idea is that the same properties cause the same experiences. I argue that a probabilistic connection between epistemic fundamentality and metaphysical fundamentality is sufficient for justified (...) beliefs about the metaphysically fundamental. (shrink)

David hume is sometimes viewed as a skeptic who argues that none of our beliefs about the world are justified. this paper challenges that view by developing and explicating an account of justified belief that is compatible with hume's theories about belief formation, inference, and principles governing the association of ideas. it is noted that the resultant account bears some resemblance to contemporary causal/reliability views of justification.

The question whether perceptual experiences justify perceptual beliefs is ambiguous. One problem is the well familiar skeptical one. How can perceptual experiences justify beliefs if those experiences may systematically deceive us? Our experiences might be just as they are and yet the world might be radically different. But there is also another problem about the justification of perceptual beliefs which arises independently of the above skeptical worry. This other problem has to do with our understanding of the very notion of (...) justification. It seems natural to think that justification can exist only in so far as what is justified is inferentially linked to the justifier. The question, then, is whether perceptual experiences can serve as an inferential basis for perceptual beliefs. The content of experiences does not seem to be the same sort of content that is possessed by beliefs. So the nature of the relation between experiences and beliefs is far from obvious. In this paper I survey various attempts of justifying the view that there is an inferential relation between experiences and beliefs so that the latter can be justified by the former and I argue that none of those attempts is satisfactory. I also suggest that the problem which those attempts address may be illusory. Even though it seems true that experiences and beliefs possess different kinds of contents, there may be no logical gap between those contents that needs to be bridged by some philosophical reflection. (shrink)

This paper discusses Lippert-Rasmussen’s [Philosophical Studies 104, (2001) 123–141] claim that there are reasonable question-begging arguments. It is first argued that his arguments devalue the distinction between justifiable and justified beliefs, a distinction that is important for the fallacy theory. Second, it is argued that the role of the argument in the discussed cases can be questioned. In addition, the role of second order beliefs is discussed.

In the first section of this paper I present epistemic evidentialism and, in the following two sections, I discuss that view with counterexamples. I shall defend that adequately supporting evidence is a necessary, but not a sufficient, condition for epistemic justification. Although we need epistemic elements other than evidence in order to have epistemic justification, there can be no epistemically justified belief without evidence. However, there are other kinds of justification beyond the epistemic justification, such as prudential or (...) moral justification; therefore, there is room for justified beliefs (in a prudential or moral sense) without evidence. (shrink)

Audi defends his views in epistemology against the challenges raised by Laurence BonJour, Timothy Williamson, and William Alston in Part II, “Knowledge, Justification, and Acceptance.” Specifically, Audi addresses his concerns about the sorts of beliefs that can be noninferentially justified, the sense in which the grounds of justification may be internal, and the range of attitudes that admit of justification and rationality.

A critique of the standard definition of knowledge as "justified, True belief" on the grounds that since truth, As judged by human knowers, Is a function of the process of justifying beliefs, It is superfluous as a defining characteristic of knowledge. The works of william james and j l austin are drawn on.

George schlesinger has characterized justified belief probabilistically. I question the propriety of this characterization and demonstrate that with respect to it certain principles of epistemic logic that he considers plausible are unsound.

In this paper, I examine one central strand of Lackey’s The Epistemology of Groups, namely her account of group justified belief and the puzzle cases she uses to develop it. Her puzzle cases involve a group of museum guards most of whom justifiably believe a certain claim but do so on different bases. Consideration of these cases leads her to hold that a group justifiably believes p if and only if (1) a significant proportion of its operative members (...) (a) justifiably believe p on (b) bases that are consistent when combined and (2) the total evidence which members of the group do and should have had sufficiently support p. I question her judgement about these cases and condition 2, by examining the nature of group evidence as well as ‘transmission’ principles governing the relationship between the epistemic standing of members of a group and the group itself. (shrink)

Robert richman tries to defend a justified-True-Belief analysis of knowledge by attacking the assumption that a justified belief can be false. But, Although 'p is justified but false' is incoherent if asserted about the way things actually are, It is not incoherent if asserted about a supposed situation. And critics of a justified-True-Belief analysis need only do the latter.

According to Lehrer’s defeasibility account of knowledge, we can understand knowledge as undefeated justified true belief. But this account faces many serious problems. One important problem is that from one’s subjective point of view, one can hardly bridge the gap between one’s personal justification and objective truth. Another important problem is that this account can hardly accommodate the externalist intuition that the epistemic status of a belief is not entirely determined by factors that are internal to the (...) subject’s perspective. The goal of this paper is to offer an alternative account of knowledge which can successfully deal with these problems. On the basis of a Sellarsian social practice theory of justification, I argue that we can understand knowledge as objectively justified belief. (shrink)

This paper argues for a completely universal scepticism, according to which no beliefs at all are justified to the least degree. The argument starts with a version of the Agrippan trilemma, according to which, if we accept that a belief is justified, we must choose between foundationalism, coherentism of a particular sort, and an infinite regress of justified beliefs. Each of these theories is given a careful specification in terms of the relationship of “justifiedness in p (...) depending on justifiedness in q”. It is then argued that no beliefs – not even beliefs about phenomenal experiences – are foundational in the required way. Both coherentism and infinitism are untenable, since, since they face various objections, most significantly the objection that acceptance of either would commit one to allowing that all beliefs were justified. Because the three possible accounts of justificational structure all fail radically, it is concluded that no beliefs are justified. (shrink)

The paper offers a three-premise argument that a person with first-hand experience of possession and exorcism, such as an exorcist, can have a justified belief in the existence of demons. “Exorcism involves a process by which the exorcist comes to believe that testimony is offered by a demon.” Cited for are the Gospels, the Roman Ritual, some modern cases of exorcism, and exorcism practices in non-Christian contexts. “If defeaters are absent, the exorcist may treat as reliable the process (...) by which he comes to believe that testimony is offered by a demon.” For a case is offered that we have a reliable ability to identify when testimony is being offered and when it is being offered by particular types of agents, what is termed testifier-identification. “In many cases of exorcism, defeaters are absent.” An inductive case is given for by responding to possible defeaters, including several suggested recently by David Kyle Johnson. Therefore, in many cases of exorcism the exorcist may treat as reliable the processes by which he comes to believe that testimony is offered by a demon, and so can have a justified belief in the existence of demons. (shrink)

This manuscript presents a topological argumentation framework for modelling notions of evidence-based (i.e., justified) belief. Our framework relies on so-called topological evidence models to represent the pieces of evidence that an agent has at her disposal, and it uses abstract argumentation theory to select the pieces of evidence that the agent will use to define her beliefs. The tools from abstract argumentation theory allow us to model agents who make decisions in the presence of contradictory information. Thanks to (...) this, it is possible to define two new notions of beliefs, grounded beliefs and fully grounded beliefs. These notions are discussed in this paper, analysed and compared with the existing notion of topological justified belief. This comparison revolves around three main issues: closure under conjunction introduction, the level of consistency and their logical strength. (shrink)

When analyzing 'justified factual knowledge that h', we must speak of justified belief in h and also of h's being a justified proposition. Gettier-type problems can be dealt with by requiring that the belief in h be justified through its connection with a 'justification-explaining chain' related to h. The social aspects of knowledge can be encompassed by analyzing what it is for h to be a justified proposition in terms of h's relation to (...) the rationality of an 'epistemic community'.The discussion explains these analyses, and shows how to concept of a justification-explaining chain is related to Ernest Sosa's concept of a 'tree of knowledge'. The present account of justification is seen to be preferable.A rationale for appealing to justification-explaining chains emerges from Popper's concern with another type of knowledge, namely, sets of propositions embedded in systems used by epistemic communities in pursuit of epistemic goals.In conclusion, the present approach is related to a number of examples found in the literature concerning the social aspects of knowledge. (shrink)

This book explores a question central to philosophy--namely, what does it take for a belief to be justified or rational? According to a widespread view, whether one has justification for believing a proposition is determined by how probable that proposition is, given one's evidence. In this book this view is rejected and replaced with another: in order for one to have justification for believing a proposition, one's evidence must normically support it--roughly, one's evidence must make the falsity of (...) that proposition abnormal in the sense of calling for special, independent explanation. This conception of justification bears upon a range of topics in epistemology and beyond. Ultimately, this way of looking at justification guides us to a new, unfamiliar picture of how we should respond to our evidence and manage our own fallibility. This picture is developed here. (shrink)