It is commonly assumed that besides knowledge of facts or truths, there is also knowledge of things–for example, we say that we know people or know places. We could call this "objectual knowledge". In this paper, I raise doubts about the idea that there is a sui generis objectual knowledge that is distinct from knowledge of truths.

This work treats the correlative concepts knowledge and opinion, in various senses. In all senses of ‘knowledge’ and ‘opinion’, a belief known to be true is knowledge; a belief not known to be true is opinion. In this sense of ‘belief’, a belief is a proposition thought to be true—perhaps, but not necessarily, known to be true. All knowledge is truth. Some but not all opinion is truth. Every proposition known to be true is believed to (...) be true. Some but not every proposition believed to be true is known to be true. Our focus is thus on propositional belief (“belief-that”): the combination of propositional knowledge (“knowledge-that”) and propositional opinion (“opinion-that”). Each of a person’s beliefs, whether knowledge or opinion, is the end result of a particular thought process that continued during a particular time interval and ended at a particular time with a conclusive act—a judgment that something is the case. This work is mainly about beliefs in substantive informative propositions—not empty tautologies. We also treat objectual knowledge (knowledge of objects in the broadest sense, or “knowledge-of”), operational knowledge (abilities and skills, “knowledge-how-to”, or “know-how”), and expert knowledge (expertise). Most points made in this work have been made by previous writers, but to the best of our knowledge, they have never before been collected into a coherent work accessible to a wide audience. -/- Key words: belief, knowledge/opinion, propositional, operational, objectual, cognition, . (shrink)

Determiner phrases embedded under a propositional attitude verb have traditionally been taken to denote answers to implicit questions. For example, 'the capital of Vermont' as it occurs in 'John knows the capital of Vermont' has been thought to denote the proposition which answers the implicit question 'what is the capital of Vermont?' Thus, where 'know' is treated as a propositional attitude verb rather than an acquaintance verb, 'John knows the capital of Vermont' is true iff John knows that Montpelier is (...) the capital of Vermont. The traditional view lost its popularity long ago, because it was thought to rest on the controversial assumption that determiner phases embedded under a propositional attitude verb function semantically in the same way as the corresponding wh-clauses. Here we defend the traditional assumption against objections. We then argue that wh-clauses are not to be given a uniform treatment as indirect questions. When occurring under a propositional attitude verb, wh-clauses are better treated as having a predicate-type semantic value. We conclude by considering some possible objections to the predicate view. (shrink)

Vaidya has recently argued that while Husserl’s method for acquiring knowledge of essence through use of our imagination is subject to a vicious epistemic circle, we can still use the method to successfully attain objectual understanding of essence. In this paper, I argue that the Husserlian objectual understanding-based epistemology envisaged by Vaidya suffers from a similar epistemic circularity as its knowledge-based foil. I argue that there is a straight-forward solution to this problem, but then raise three (...) serious problems for an amended version of Vaidya’s proposal and any similar Husserlian epistemology of essence. The paper closes with some general reflections on applying the Husserlian method to the contemporary notion of essence and on the idea of refocusing the epistemology of essence on understanding instead of knowledge. (shrink)

Duncan Pritchard (2008, 2009, 2010, forthcoming) has argued for an elegant solution to what have been called the value problems for knowledge at the forefront of recent literature on epistemic value. As Pritchard sees it, these problems dissolve once it is recognized that that it is understanding-why, not knowledge, that bears the distinctive epistemic value often (mistakenly) attributed to knowledge. A key element of Pritchard’s revisionist argument is the claim that understanding-why always involves what he calls strong (...) cognitive achievement—viz., cognitive achievement that consists always in either (i) the overcoming of a significant obstacle or (ii) the exercise of a significant level of cognitive ability. After outlining Pritchard’s argument, we show (contra Pritchard) that understanding-why does not essentially involve strong cognitive achievement. Interestingly, in the cases in which understanding-why is distinctively valuable, it is (we argue) only because there is sufficiently rich objectual understanding in the background. If that’s right, then a plausible revisionist solution to the value problems must be sensitive to different kinds of understanding and what makes them valuable, respectively. (shrink)

The paper discusses five conceptions of knowledge present in texts traditionally associated with the thought of such thinkers as Kongzi, Mozi, Mengzi, Xunzi, Laozi, Zhuangzi, and Hanfeizi. The first three maps onto conceptions of knowledge familiar to contemporary ears: skill knowledge (knowing-how), propositional knowledge (knowing-that) and objectual knowledge (knowing by acquaintance); while the next two map onto less commonly discussed conceptions of knowledge: motivational knowledge (knowing-to) and applied knowledge (knowing-how-to). The discussion (...) aims to complement existing projects in the literature that look at related issues more explicitly from the standpoint of the ‘native’ concepts. The paper concludes with some comments on the early Chinese philosophical concerns with knowledge and its relation to broader conceptions of ‘philosophical’ projects. (shrink)

I develop the relatively familiar idea of a variety of forms of knowledge —not just propositional knowledge but also knowledge -how and experiential knowledge —and show how this variety can be used to make interesting sense of Plato’s and Aristotle’s philosophy, and in particular their ethics. I then add to this threefold analysis of knowledge a less familiar fourth variety, objectual knowledge, and suggest that this is also interesting and important in the understanding (...) of Plato and Aristotle. (shrink)

This accessible essay treats knowledge and belief in a usable and applicable way. Many of its basic ideas have been developed recently in Corcoran-Hamid 2014: Investigating knowledge and opinion. The Road to Universal Logic. Vol. I. Arthur Buchsbaum and Arnold Koslow, Editors. Springer. Pp. 95-126. http://www.springer.com/birkhauser/mathematics/book/978-3-319-10192-7 .

In ‘Knowing What Things Look Like,’ I argued against the immediacy of visual objectual knowledge, i.e. visual knowledge that a thing is F, for an object category F, such as avocado, tree, desk, etc. Joseph Shieber proposes a challenging dilemma in reply. Either knowing what Fs look like requires having concepts such as looks or it doesn’t. Either way my argument fails. If knowing what Fs look like doesn’t require having such concepts, then he claims we can (...) give an immediacy-friendly anti-intellectualist account of knowing what Fs look like, one that I neglected. If it does require having such concepts, then knowledge of what Fs look like plays no important role in ordinary cases of knowing things to be F by their looks. I argue for several claims. First, Shieber's anti-intellectualist proposal fails for independent reasons. Second, I give reasons for thinking that knowing what Fs look like doesn't require having a general concept of looks, which lessens worries about nonhuman animals having such knowledge. Finally, I consider the possibility, important to Shieber's argument, that nonhuman animals are simply incapable of knowing what Fs look like. I argue the implications for human knowledge are far from clear. (shrink)

What does it mean to know how to do something? This book develops a comprehensive account of know-how, a crucial epistemic goal for all who care about getting things right, not only with respect to the facts, but also with respect to practice. It proposes a novel interpretation of the seminal work of Gilbert Ryle, according to which know-how is a competence, a complex ability to do well in an activity in virtue of guidance by an understanding of what it (...) takes to do so. This idea is developed into a full-fledged account, Rylean responsibilism, which understands know-how in terms of the normative guidance and responsible control of one's acts. Within the complex current debate about know-how, this view occupies a middle ground position between the intellectualist claim that know-how just is propositional or objectual knowledge and the anti-intellectualist claim that know-how just is ability. In genuine know-how, practical ability and guiding intellect are both necessary, but essentially intertwined. (shrink)

This chapter examines Mencius’s views on knowledge and how they might contribute to contemporary debates in epistemology. For this purpose, I focus on three features that I take to be characteristic (although not exhaustive) of Mencian epistemology: first, Mencius’s views on knowing things; second, the role that wisdom or intellectual virtue plays in acquiring knowledge; and third, Mencius’s views on “knowing-to”, a kind of knowledge conceptually distinct from knowing-that and knowing-how. I argue that the views we find (...) in the Mencius on these matters are relevant to contemporary debates on the nature of objectual knowledge, on the role of intellectual virtue in knowing, and on the relation between know-how and intelligent action. (shrink)

When travelling to a new city, we acquire knowledge about its physical terrain, directions, historical facts and aesthetic features. Engaging in tourism practices, such as guided walking tours, provides experiences of a city that are necessarily mediated and partial. This has led scholars in tourism studies, and more recently in philosophy, to question the epistemological value of city tours, critiquingthem as passive, lacking in autonomous agency, and providing misrepresentative experiences of the city. In response, we argue that the mediated (...) and partial knowledge of a city acquired through city tours is not epistemologically disvaluable. Although city tours involve the transmission of testimonial knowledge, this does not necessarily render tourists as passive and non-autonomous. Instead,tourists have the potential to participate in the generation of their knowledge actively. Moreover, we argue that city tours also provide a tourist with valuable ‘objectual’ knowledge of a city, whichhas the potential to be first-personal and active, and does not necessarily misrepresent the city’s identity. This type of knowledge is valuable both for tourists as credible epistemic agents, and for the city itself, as the knowledge generated by the tour can facilitate an accurate representation of the city and promote social transformation. We conclude by highlighting four further epistemic and ethical implications of our argument. (shrink)

What is it to know someone? Epistemologists rarely take up this question, though recent developments make such inquiry possible and desirable. This paper advances an account of how such interpersonal knowledge goes beyond mere propositional and qualitative knowledge about someone, giving a central place to second-personal treatment. It examines what such knowledge requires, and what makes it distinctive within epistemology as well as socially. It assesses its theoretic value for several issues in moral psychology, epistemic injustice, and (...) philosophy of mind. And it offers an account of the complex content in play if interpersonal knowledge is to be understood in terms of its mental states and their functions. (shrink)

Recent epistemology has focused almost exclusively on propositional knowledge. This paper considers an underexplored area of epistemology, namely knowledge of persons: if propositional knowledge is a state of mind, consisting in a subject's attitude to a (true) proposition, the account developed here thinks of interpersonal knowledge as a state of minds, involving a subject's attitude to another (existing) subject. This kind of knowledge is distinct from propositional knowledge, but it exhibits a gradability characteristic of (...) context-sensitivity, and admits of shifty thresholds. It is supported by a wide range of unexplored linguistic data and intuitive cases; and it promises to illuminate debates within epistemology, philosophy of religion, and ethics. (shrink)

Following Quine [] and others we take deductions to produce knowledge of implications: a person gains knowledge that a given premise-set implies a given conclusion by deducing—producing a deduction of—the conclusion from those premises. How does this happen? How does a person recognize their desire for that knowledge of a certain implication, or that they lack it? How do they produce a suitable deduction? And most importantly, how does their production of that deduction provide them with (...) class='Hi'>knowledge of the implication. What experienceable sign reveals to the reasoner that they achieved the desired knowledge? If a deduction is an array of inscriptions constructed by following syntactical—mechanical, machine-performable—rules as suggested by Tarski, Carnap, Church, and others, the epistemic question becomes even more pressing and more challenging. Moreover, deduction, the ability to produce deductions and to recognize them when produced, is operational knowledge that presupposes other component operations such as recognizing characters, making assumptions, inferring conclusions from premises, chaining inferences [AL]. (shrink)

This paper offers a normative account of the speech act of explanation with understanding as its norm. The previous accounts of the speech act of explanation rely on the factive notion of understanding and maintain that proper explanations require knowledge. I argue, however, that such accounts are too demanding and do not reflect the everyday practice of explanation and the attribution of understanding. Instead, I argue that the non-factive, objectual attitude of understanding is sufficient for a proper explanation. (...) On the normative level, explanations are governed by an audience-centred norm, i.e., they are sensitive to the epistemic position of the audience. According to the proposed account, an explanation is a communicative act in which one puts the audience in a position to understand the explained phenomenon. This proposal fits into the recent wave of applications of the normative account and makes space for the pluralism of illocutionary acts. (shrink)

The philosophical tradition says that Immanuel Kant’s critique of the theoretical reason is an attempt to epistemological foundation. The model is based on the relationship between subject and object and aims to determine the limits of the possibility of knowledge. This would follow from the Kantian denial to the pure metaphysical intelligibility. Such ontology, however, would not focus on the naming of pure objects or pure intelligibility. It is then intended to debate the possibility of a transcendental ontology that (...) is based on the objectuality of empirical objects, which points to the Heideggerian interpretation of Kantian thought. Thus, this paper hopes to contribute to the theme of the possibility of a Kantian ontology with view to the objectuality of the objects. (shrink)

We might think that thought experiments are at their most powerful or most interesting when they produce new knowledge. This would be a mistake; thought experiments that seek understanding are just as powerful and interesting, and perhaps even more so. A growing number of epistemologists are emphasizing the importance of understanding for epistemology, arguing that it should supplant knowledge as the central notion. In this chapter, I bring the literature on understanding in epistemology to bear on explicating the (...) different ways that thought experiments increase three important kinds of understanding: explanatory, objectual and practical. (shrink)

Mathematicians often describe the importance of well-developed intuition to productive research and successful learning. But neither education researchers nor philosophers interested in epistemic dimensions of mathematical practice have yet given the topic the sustained attention it deserves. The trouble is partly that intuition in the relevant sense lacks a usefully clear characterization, so we begin by offering one: mature intuition, we say, is the capacity for fast, fluent, reliable and insightful inference with respect to some subject matter. We illustrate the (...) role of mature intuition in mathematical practice with an assortment of examples, including data from a sequence of clinical interviews in which a student improves upon initially misleading covariational intuitions. Finally, we show how the study of intuition can yield insights for philosophers and education theorists. First, it contributes to a longstanding debate in epistemology by undermining epistemicism, the view that an agent’s degree of objectual understanding is determined exclusively by their knowledge, beliefs and credences. We argue on the contrary that intuition can contribute directly and independently to understanding. Second, we identify potential pedagogical avenues towards the development of mature intuition, highlighting strategies including adding imagery, developing associations, establishing confidence and generalizing concepts. (shrink)

Much discussion of meaning by philosophers over the last 300 years has been predicated on a Cartesian first-person authority (i.e. “infallibilism”) with respect to what one’s terms mean. However this has problems making sense of the way the meanings of scientific terms develop, an increase in scientific knowledge over and above scientists’ ability to quantify over new entities. Although a recent conspicuous embrace of rigid designation has broken up traditional meaning-infallibilism to some extent, this new dimension to the meaning (...) of terms such as “water” is yet to receive a principled epistemological undergirding (beyond the deliverances of “intuition” with respect to certain somewhat unusual possible worlds). Charles Peirce’s distinctive, naturalistic philosophy of language is mined to provide a more thoroughly fallibilist, and thus more realist, approach to meaning, with the requisite epistemology. Both his pragmatism and his triadic account of representation, it is argued, produce an original approach to meaning, analysing it in processual rather than objectual terms, and opening a distinction between “meaning for us”, the meaning a term has at any given time for any given community and “meaning simpliciter”. the way use of a given term develops over time (often due to a posteriori input from the world which is unable to be anticipated in advance). This account provocatively undermines a certain distinction between “semantics” and “ontology” which is often taken for granted in discussions of realism. (shrink)

Literature in epistemology tends to suppose that there are three main types of understanding – propositional, atomistic, and objectual. By showing that all apparent instances of propositional understanding can be more plausibly explained as featuring one of several other epistemic states, this paper argues that talk of propositional understanding is unhelpful and misleading. The upshot is that epistemologists can do without the notion of propositional understanding.

Analyticity is a bogus explanatory concept, and is so even granting genuine synonomy. Definitions can't explain the truth of a statement, let alone its necessity and/or our a priori knowledge of it. The illusion of an explanation is revealed by exposing diverse confusions: e.g., between nominal, conceptual and real definitions, and correspondingly between notational, conceptual, and objectual readings of alleged analytic truths, and between speaking a language and operating a calculus. The putative explananda of analyticity are (alleged) truths (...) about essential properties. Real definitions (a la Socrates) are the (alleged) explananda, not the explanans of analyticity. Their truth can be explained neither by conceptual definitions (a la Kant), nor by nominal definitions (a la Frege). The Quinean assault on synonomy is unsuccessful and in any case misplaced, because analyticity turns on the explanatory import of synonomy, not its existence. Synonym substitution in a logical truth cannot yield a necessary truth for it doesn't preserve logical form. Self-identity statements (for properties and/or individuals) differ in logical form from alter-identity statements. (shrink)

Looking out the window, I see that it's raining outside. Do I know that it’s raining outside? According to proponents of the Entailment Thesis, I do. If I see that p, I know that p. In general, the Entailment Thesis is the thesis that if S perceives that p, S knows that p. But recently, some philosophers (McDowell 2002, Turri 2010, Pritchard 2011, 2012) have argued that the Entailment Thesis is false. On their view, we can see p and not (...) know that p. In this paper, I argue that their arguments are unsuccessful. (shrink)

Literary cognitivists claim that works of literature can have a significant cognitive value and can be effective in providing readers with opportunities for learning. Anti-cognitivists challenge cognitivists by questioning how literature can offer arguments or evidence for readers’ adoption of new knowledge or understanding. As a mode of side-stepping these objections, cognitivists have recently tended to make their claims more modest and claim only that literature clarifies knowledge readers already possess or provides the opportunity for the development of (...) certain general cognitive skills. In this chapter, I put forward a more bold account of literature’s cognitive value. I argue that a reader’s engagement with a literary work can lead to reconfiguration of their understanding of the subject matter with which the work deals. This bolder defence of literature’s cognitive value, and the account I offer of how readers can access such cognitive value, indicate how literature can form a significant part of character education. (shrink)

The paper argues that an account of understanding should take the form of a Carnapian explication and acknowledge that understanding comes in degrees. An explication of objectual understanding is defended, which helps to make sense of the cognitive achievements and goals of science. The explication combines a necessary condition with three evaluative dimensions: an epistemic agent understands a subject matter by means of a theory only if the agent commits herself sufficiently to the theory of the subject matter, and (...) to the degree that the agent grasps the theory (i.e., is able to make use of it), the theory answers to the facts and the agent’s commitment to the theory is justified. The threshold for outright attributions of understanding is determined contextually. The explication has descriptive as well as normative facets and allows for the possibility of understanding by means of non-explanatory (e.g., purely classificatory) theories. (shrink)

There is pragmatic encroachment on some epistemic status just in case whether a proposition has that status for a subject depends not only on the subject's epistemic position with respect to the proposition, but also on features of the subject's non-epistemic, practical environment. Discussions of pragmatic encroachment usually focus on knowledge. Here we argue that, barring infallibilism, there is pragmatic encroachment on what is arguably a more fundamental epistemic status – the status a proposition has when it is warranted (...) enough to be a reason one has for believing other things. (shrink)

List of Illustrations Introduction 1 The Didactic and the Elegant: Some Thoughts on Scientific and Technological Illustrations in the Middle Ages and Renaissance 3 2 Temples of the Body and Temples of the Cosmos: Vision and Visualization in the Vesalian and Copernican Revolutions 40 3 Descartes’s Scientific Illustrations and ’la grande mecanique de la nature’ 86 4 Illustrating Chemistry 135 5 Representations of the Natural System in the Nineteenth Century 164 6 Visual Representation in Archaeology: Depicting the Missing-Link in Human (...) Origins 184 7 Towards an Epistemology of Scientific Illustration 215 8 Illustration and Inference 250 9 Visual Models and Scientific Judgment 269 10 Are Pictures Really Necessary? The Case of Sewall Wright’s ’Adaptive Landscapes’ 303 Bibliography 339 Notes on Contributors 373 Index 377. (shrink)

Propositionalism is the view that all intentional states are propositional states, which are states with a propositional content, while objectualism is the view that at least some intentional states are objectual states, which are states with objectual contents, such as objects, properties, and kinds. This paper argues that there are two distinct ways of understanding propositionalism and objectualism: (1) as views about the deep nature of the contents of intentional states, and (2) as views about the superficial character (...) of the contents of intentional states. I argue that we should understand the views in the second way. I also argue that the propositionalism debate is fairly independent from debates over the deep nature of intentionality, and that this has implications for arguments for propositionalism and objectualism from claims about the nature of intentional content. I close with a short discussion of how related points apply to the debate over singular content. (shrink)

If you care about securing knowledge, what is wrong with being biased? Often it is said that we are less accurate and reliable knowers due to implicit biases. Likewise, many people think that biases reflect inaccurate claims about groups, are based on limited experience, and are insensitive to evidence. Chapter 3 investigates objections such as these with the help of two popular metaphors: bias as fog and bias as shortcut. Guiding readers through these metaphors, I argue that they clarify (...) the range of knowledge-related objections to implicit bias. They also suggest that there will be no unifying problem with bias from the perspective of knowledge. That is, they tell us that implicit biases can be wrong in different ways for different reasons. Finally, and perhaps most importantly, the metaphors reveal a deep—though perhaps not intractable—disagreement among theorists about whether implicit biases can be good in some cases when it comes to knowledge. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Plato on Knowledge as a Power1Nicholas D. SmithAt 471C4 in Plato’s Republic, the argument takes a sudden turn when Glaucon becomes impatient with all of the specific prescriptions Socrates has been making, and asks to return to the issue Socrates had earlier set aside—whether or not the city he was describing could ever be brought into being. In response to Glaucon’s impatient question, Socrates articulates his “third wave (...) of paradox” (472ag–7), namely, that the ills of the cities will never be ended until either philosophers become rulers or rulers become philosophers (473c11–d6). Glaucon immediately responds that such a view is likely to be greeted with violence and scorn (473e6–474a4), and so Socrates must hasten to explain his odd claim. His explanation, it turns out, is that true philosophers have an enormous cognitive advantage over non-philosophers—philosophers have and use knowledge (ἐπιστήμη), whereas non-philosophers have and use only opinion (δόξα).2 This distinction, between επιστήμη and δόξα, turns out: to be a distinction between two different cognitive powers (δυνάμεις—477d7–e3). And different powers, Plato clearly tells us, apply to or take as their objects (Plato says they are “ἐπί”) different things (477dl).In this paper, I shall argue that the relationship between the cognitive powers and their various objects has been fundamentally misunderstood, which has led scholars into one or more misinterpretations of important and explicit features of the text. At the heart of these misunderstandings, I claim, is [End Page 145] their shared misconception of the relation between the cognitive power and its objects as interpretable in terms of the relationship between a cognitive stale and what the content of that state is of or about.3 One consequence of the view for which I shall argue is that what has come to be known as the “two-worlds theory”4 of Plato’s epistemology is seriously mistaken, but no less mistaken than the alternatives given by its recent critics. Another consequence that I shall draw from my argument is that Plato should be understood neither as a kind of foundationalist with regard to knowledge and warrant, as some have supposed him to be,5 nor as a coherentist, as others have supposed,6 but, rather, as a kind of causal reliabilist. [End Page 146]1. KNOWLEDGE AS A POWERScholarly interpretations of Plato’s epistemology have routinely sought to understand the relationships between each cognitive power of Republic Book V and the objects of the ἐφ’ ᾦ (“what it is related to”) condition by which it is differentiated from other δυνάμεις as Plato’s way of telling us what each sort of cognition is of or aboul. 7 So, for example, we find Gail Fine using the expressions “belief [δόξα] is set over [Fine’s translation of Plato’s ἐπί] …” and “knowledge is set over …” interchangeably with “belief is of …” or “belief is about…” and “knowledge is of …” or “knowledge is about …”8 Against the “two-worlds theory,” Fine argues that, for Plato, there can be knowledge of sensibles and beliefs about Forms. Accordingly, since she assimilates the power-ἐπί-object set of relations to the cognilion-of/about-object relation, she concludes—in order to account for knowledge of sensibles and beliefs about Forms—that the objects of knowledge and opinion must be propositions. Plato’s claims that knowledge is ἐπί what is, whereas opinion is ἐπί what is and is not, Fine understands as, “One can only know true propositions; one can believe both true and false propositions.”9 We shall see later that this “veridical” understanding of what Plato means to identify as “what is,” and “what is and is not” fails to account for important and explicit elements of Plato’s exposition of the epistemological and metaphysical distinctions he is making. For now, it is enough to note that Fine understands the ἐφ’ᾦ) relation in terms of our cognition-of/about-object relation. One finds the same assimilation made by those who advance existential readings of Plato’s “is” and “is not,”10 as [End Page 147] well as those who have urged that we adopt predicative readings of “is” and “is not.”11But I think there are very serious problems with this assimilation. Plato is very... (shrink)

ABSTRACT This essay defends a qualified version of Quine's thesis of universal revisability against Chalmers's recent conditionalization-based criticisms of it. It is argued that an embodied view of cognitive processing undermines Chalmers's account of nonrevisable a priori justification, which presupposes that concepts prefigure the confirmation-relations into which they enter, so as to make such relations rationally accessible to anyone who possesses those concepts. On the view developed here, bodily interaction with the world and the accompanying subconscious processing can change subjects' (...) dispositions to apply their concepts, in ways that are not rationally accessible to them, even given a complete description of that interaction, and do not constitute a change in the content of the concepts involved. Thus a subject who treats a proposition as indefeasibly justified a priori might nevertheless significantly lower her credence in that proposition, in ways that are not accessible to the subject on the basis of her grasp of the content of the relevant concepts. This discussion has further implications concerning the role of the a priori in the philosophical enterprise. (shrink)

The paper starts out by distinguishing two closely related hypotheses about extended cognition. According to the strong hypothesis, there are no intrinsic representations in the brain. This is a version of the extended-mind view defended by Andy Clark and Richard Menary. On the weak hypothesis, there are intrinsic representations in the brain but some types of cognition, knowledge or memory are constituted by particular types of external devices or environmental factors that extend beyond the skull and perhaps beyond the (...) skin. This type of view was defended, for example, by Andy Clark and David Chalmers. After drawing this distinction and clarifying the notions of causal influence and constitution, I defend the second weaker hypothesis with respect to procedural knowledge and knowledge of action and show why this sort of view supports what we might call a ‘situationist-friendly virtue epistemology’. (shrink)

A crucial part of the contemporary interest in logicism in the philosophy of mathematics resides in its idea that arithmetical knowledge may be based on logical knowledge. Here an implementation of this idea is considered that holds that knowledge of arithmetical principles may be based on two things: (i) knowledge of logical principles and (ii) knowledge that the arithmetical principles are representable in the logical principles. The notions of representation considered here are related to theory-based (...) and structure-based notions of representation from contemporary mathematical logic. It is argued that the theory-based versions of such logicism are either too liberal (the plethora problem) or are committed to intuitively incorrect closure conditions (the consistency problem). Structure-based versions must on the other hand respond to a charge of begging the question (the circularity problem) or explain how one may have a knowledge of structure in advance of a knowledge of axioms (the signature problem). This discussion is significant because it gives us a better idea of what a notion of representation must look like if it is to aid in realizing some of the traditional epistemic aims of logicism in the philosophy of mathematics. (shrink)

Although formal thought disorder (FTD) has been for long a clinical label in the assessment of some psychiatric disorders, in particular of schizophrenia, it remains a source of controversy, mostly because it is hard to say what exactly the “formal” in FTD refers to. We see anomalous processing of terminological knowledge, a core construct of human knowledge in general, behind FTD symptoms and we approach this anomaly from a strictly formal perspective. More specifically, we present here a symbolic (...) computational model of storage in, and activation of, a human semantic network, or semantic memory, whose core element is logical form; this is normalized by description logic (DL), namely by CL, a DL-based language – Conception Language – designed to formalize conceptualization from the viewpoint of individual cognitive agency. In this model, disruptions in the rule-based implementation of the logical form account for the apparently semantic anomalies symptomatic of FTD, which are detected by means of a CL-based algorithmic assessment. (shrink)

Some philosophers claim that perception immediately and prima facie justifies belief in virtue of its phenomenal character (Huemer, Skepticism and the veil of perception. Rowman & Littlefield, Lanham, 2001; Pryor, There is immediate justification. In: Steup M, Sosa E (eds) Contemporary debates in epistemology. Blackwell, London (2014), pp. 181–202, 2005). To explain this special justificatory power, some appeal to perception’s presentational character: the idea that perceptual experience presents its objects as existing here-and-now (Chudnoff, Intuition. Oxford University Press, Oxford, 2013; Berghofer, (...) Husserl Stud 34(2):145–170, 2018). As some philosophers have noted, if perception justifies in virtue of its presentational character alone, the kind of content perception has should not matter for perceptual justification; more precisely, it should not matter whether perceptual content is propositional or not (e.g., Smithies, The epistemic role of consciousness. Oxford University Press, Oxford, 2019; Kriegel, Australas J Philos, 2021). However, most philosophers tend to resist this conclusion, holding that perception must be propositional in order to justify, on the ground that all our model of justification are propositional (e.g., Gauker, Philos Perspect 26(1):19–50, 2012). This paper challenges this claim. The paper consists of a negative and a positive part. In the negative part, I discuss and reject the master argument for the propositionality of perception; the conclusion is that propositional content is neither sufficient nor necessary to explain perception’s justificatory power. In the positive part, I take this conclusion seriously and outline an objectual model of perceptual justification. I define objectual attitudes as mental states whose content is not a full proposition, but a sub-propositional representational item, such as the representation of objects, properties, and kinds (Grzankowski and Montague, Non-propositional intentionality. Oxford University Press, Oxford, 2018), and show that it is plausible that some perceptions and some beliefs are attitudes of this kind. I then argue that objectual perceptual experiences have the right kind of phenomenal character and the right kind of structure to serve for immediate prima facie justification. I conclude by defending my objectual model from three objections. (shrink)

Few recent developments in information technology have been as hyped as blockchain, the first implementation of which was the cryptocurrency Bitcoin. Such hype furnishes ample reason to be skeptical about the promise of blockchain implementations, but I contend that there’s something to the hype. In particular, I think that certain blockchain implementations, in the right material, social, and political conditions, constitute excellent bases for common knowledge. As a case study, I focus on trust in election outcomes, where the ledger (...) records not financial transactions but vote tallies. I argue that blockchain implementations could foster warranted trust in vote tallies and thereby trust in the democratic process. Finally, I argue that if the promise of blockchain implementations as democratic infrastructure is to be realized, then democracies first need to ensure that these material, social, and political conditions obtain. (shrink)

I will explore the paradoxical nature of epistemic access. By critiquing the traditional conception of mental states that are labelled as ’knowledge’, I demonstrate the susceptibility of these states to an infinite regress, thus, challenging their existence and validity. I scrutinise the assumption that an epistemic agent can have complete epistemic access to all facts about a given object while simultaneously being ignorant of certain truths that impact the very knowledge claims about the object. I further analyse the (...) implications of this paradox when attempting to fine-grain the parameters of epistemic access, which happens to reveal the vacuity of such definitions and the inevitability of the regress. (shrink)

It is demonstrated here that despite apparent differences and their adherence to two different schools of thought, Suhrawardī's epistemology is essentially Ibn Sīnian, and even his theory of "knowledge by Presence" ('ilm al-hudurī), which is considered to be uniquely his, is at least inspired by Ibn Sīnā. I argue that Ibn Sīnā's peripatetic orientation and Suhrawardī's ishrāqī perspective have both maintained and adhered to the same epistemological framework while the philosophical languages in which their respective epistemologies are discussed are (...) different. (shrink)

Agentialism about self-knowledge is the view that key to understanding our capacity for self-knowledge is appreciating the connection between that capacity and our identities as rational agents—as creatures for whom believing, intending, desiring, and so on are manifestations of a capacity to be responsive to reasons. This connection, agentialists maintain, consists in the fact that coming to know our own minds involves an exercise of our rational capacities in the service of answering the relevant first-order question. Agentialists face (...) the task of accounting for the connection between our identities as rational agents and our capacity to know our stored beliefs. It’s plausible that one comes to know that one believes that p by exercising one’s rational capacities in those cases where the belief that p is formed on the basis of present consideration of the reasons for and against p. But what exactly is the relevance of our rational capacities in the case where one has already formed the belief in question? In this paper I provide an answer to this question. That answer involves an appeal to a particular model of memory. According to the model I favor, memory preserves, in addition to the content of one’s beliefs, one’s commitment to their truth. (shrink)

We develop a conceptually clear, intuitive, and feasible decision procedure for testing satisfiability in the full multi\-agent epistemic logic \CMAELCD\ with operators for common and distributed knowledge for all coalitions of agents mentioned in the language. To that end, we introduce Hintikka structures for \CMAELCD\ and prove that satisfiability in such structures is equivalent to satisfiability in standard models. Using that result, we design an incremental tableau-building procedure that eventually constructs a satisfying Hintikka structure for every satisfiable input set (...) of formulae of \CMAELCD\ and closes for every unsatisfiable input set of formulae. (shrink)

Analytic Philosophy, Volume 62, Issue 1, Page 33-56, March 2021.

Ideomotor actions are behaviours that are unconsciously initiated and express a thought rather than a response to a sensory stimulus. The question examined here is whether ideomotor actions can also express nonconscious knowledge. We investigated this via the use of implicit long-term semantic memory, which is not available to conscious recall. We compared accuracy of answers to yes/no questions using both volitional report and ideomotor response . Results show that when participants believed they knew the answer, responses in the (...) two modalities were similar. But when they believed they were guessing, accuracy was at chance for volitional report , but significantly higher for Ouija response . These results indicate that implicit semantic memory can be expressed through ideomotor actions. They also suggest that this approach can provide an interesting new methodology for studying implicit processes in cognition. (shrink)

This book presents Robert S. Hartman’s formal theory of value and critically examines many other twentieth century value theorists in its light, including A.J. Ayer, Kurt Baier, Brand Blanshard, Paul Edwards, Albert Einstein, William K. Frankena, R.M. Hare, Nicolai Hartmann, Martin Heidegger, G.E. Moore, P.H. Nowell-Smith, Jose Ortega y Gasset, Charles Stevenson, Paul W. Taylor, Stephen E. Toulmin, and J.O. Urmson.

Jonathan Kvanvig has argued that “objectual” understanding, i.e. the understanding we have of a large body of information, cannot be reduced to explanatory concepts. In this paper, I show that Kvanvig fails to establish this point, and then propose a framework for reducing objectual understanding to explanatory understanding.

Russell (1911/12) argued that perceptual experience grounds a species of non-propositional knowledge, “knowledge by acquaintance,” and in recent years, this account of knowledge has been gaining traction. I defend on its basis a connection between moral and epistemic failure. I argue, first, that insufficient concern for the suffering of others can be explained in terms of an agent’s lack of acquaintance knowledge of another’s suffering, and second, that empathy improves our epistemic situation. Empathic distress approximates acquaintance (...) with another’s suffering, and empathic agents who are motivated to help rather than disengage exhibit an important epistemic virtue: a variety of intellectual courage. A key upshot is that an independently motivated account of the structure and significance of perceptual experience is shown to provide theoretical scaffolding for understanding a famously elusive idea in ethics—namely, that the failure to help others stems from a kind of ignorance of their situation. (shrink)

This article argues for epistemic decolonization by developing a relational model of knowledge, which we locate within indigenous knowledges. We live in a time of ongoing global, epistemic coloniality, embedded in and shaped by colonial ideas and practices. Epistemological decolonization requires taking nondominant knowledges and their epistemes seriously to open up the possibility of interrogating and dismantling the hegemony of the Western knowledge tradition. We here ask two related questions: What are the decolonial affordances of indigenous knowledges? And (...) how do these compare to other contemporary critiques of epistemic coloniality, specifically those mounted by posthumanism? In answer, we develop three definitional senses of relational with reference to indigenous knowledges. First, we define indigenous knowledges in relation to Western knowledge, with which they share a dialectical origin at the moment of colonial contact. Second, indigenous knowledges are relational in their ontological and axiological orientations. Third, relationality in indigenous knowledge suggests a trialectic space, rather than a dialectic space. We argue for the necessity of an anticolonial framework, which assigns priority to indigenous people’s perceptions and ways of knowing for theorizing recurring colonial relations and their (imperialistic) manifestations in producing and reproducing knowledge. (shrink)

What do you know when you know what a sentence means? According to some theories, understanding a sentence is, in part, knowing its truth-conditions. Dorit Bar-On, Claire Horisk, and William Lycan have defended such theories on the grounds of an “epistemic determination argument”. That argument turns on the ideas that understanding a sentence, along with knowledge of the non-linguistic facts, suffices to know its truth-value, and that being able to determine a sentence’s truth-value given knowledge of the non-linguistic (...) facts is knowing its truth-conditions. I argue that the EDA withstands the objections recently raised by Daniel Cohnitz and Jaan Kangilaski, but fails for other reasons. It equivocates between a fine-grained and a coarse grained conception of “facts.”. (shrink)