Certain realists about properties and relations identify them with universals. Furthermore, some hold that for a wide range of meaningful predicates, the semantic contribution to the propositions expressed by the sentences in which those predicates figure is the universal expressed by the predicate. I here address ontological issues raised by predicates first introduced to us via works of fiction and whether the universal realist should accept that any such predicates express universals. After assessing arguments by Braun, D. and Sawyer, S. (...) for fictional universal anti-realism, I propose a novel, Kripke-inspired argument for the same conclusion. I ultimately defend the claim that while this argument presents the strongest case for fictional universal anti-realism, it is nonetheless unsound. I conclude that nothing stands in the way of accepting that some fictional predicates express fictional universals. (shrink)

This paper discusses a puzzle, the heart of which is this question: How is it that real individuals can resemble fictional individuals? It seems that any answer given by one who has taken a stand on the ontology of fictional individuals will come with significant drawbacks. An Anti-Realist will have to explain, or explain away, the apparent truth of our positive assertions of resemblance, while a Realist will have to explain how we are to understand resemblance in light of either (...) the further claim that fictional characters are not associated with properties in the same way real individuals are, or that fictional characters are nonexistent or nonactual. I here survey the different Realist and Anti-Realist strategies in hopes that reflection on (mainly the drawbacks of) each will aid those who are curious about ontologies which may include fictionalia. (shrink)

There has been a lot of discussion recently regarding abstract artifacts and how such entities (e.g., fictional characters like Sherlock Holmes, and mythological planets like Vulcan), if they indeed exist, could possibly be our creations. One interesting aspect of some of these debates concerns the extent to which creative intentions play a role in the creation of artifacts generally, both abstract and concrete. I here address the creation of concrete artifacts in particular. I ultimately defend a Brock-inspired, heterodox view on (...) which creative intentions are not at all necessary for the creation of concrete artifacts. A concrete artifact is just a hunk of matter having a certain configuration owing to human activity and, given that configuration, is disposed to participate in other human activities. (shrink)

Closest-possible-world analyses of counterfactuals suffer from what has been called the ‘problem of counterpossibles’: some counterfactuals with metaphysically impossible antecedents seem plainly false, but the proposed analyses imply that they are all (vacuously) true. One alleged solution to this problem is the addition of impossible worlds. In this paper, I argue that the closest possible or impossible world analyses that have recently been suggested suffer from the ‘new problem of counterpossibles’: the proposed analyses imply that some plainly true counterpossibles (viz., (...) ‘counterlogicals’) are false. After motivating and presenting the ‘new problem’, I give reasons to think that the most plausible objection to my argument is not compelling. (shrink)

Creationism is the conjunction of the following theses: (i) fictional individuals (e.g. Sherlock Holmes) actually exist; (ii) fictional names (e.g., 'Holmes') are at least sometimes genuinely referential; (iii) fictional individuals are the creations of the authors who first wrote (or spoke, etc.) about them. CA Creationism is the conjunction of (i) - (iii) and the following thesis: (iv) fictional individuals are contingently existing abstracta; they are non-concrete artifacts of our world and various other possible worlds. TakashiYagisawa has recently provided a (...) number of arguments designed to show that Creationism is unjustified. I here critically examine three of his challenges to CA Creationism. I argue that each fails to undermine this version of Creationism. (shrink)

Many who think that some abstracta are artefacts are fictional creationists, asserting that fictional characters are brought about by our activities. Kripke (1973), Salmon (1998, 2002), and Braun (2005) further embrace mythical creationism, claiming that certain entities that figure in false theories, such as phlogiston or Vulcan, are likewise abstracta produced by our intentional activities. I here argue that one may not reasonably take the metaphysical route travelled by the mythical creationist. Even if one holds that fictional characters are artefact (...) one ought not further hold that mythical objects are, too. (shrink)

There is no concept more central to logic and critical thinking than the concept of an argument. I here address the definition of ‘argument’ in the logical sense of the term and defend the claim that many current proposals, once they are interpreted in a way that makes them sufficiently precise, are extensionally inadequate. Definitions found in some contemporary, prominent critical thinking textbooks will serve as a springboard. I claim that each may be interpreted in an absolutist way or a (...) relativistic way, yet all turn out to be objectionable no matter which route is taken. I finish with a proposal on which the definition of ‘argument’ is an absolutist one, yet one that avoids the problems discussed for the earlier proposals. (shrink)

What is reading? Seeing and comprehending a contentful, written text counts as reading, of course, but that is simply the paradigm; it is not reading itself. Blind people, e.g., often read using Braille. So, my project in this paper is to address this question: What is the proper analysis of person S reads text W? Surprisingly, no philosophical attempts to analyze reading exist; this question has yet to be tackled. Can other sensory modalities be used to read? What more can (...) be said about the nature of the objects of reading, viz., texts? After critically assessing a few proposals, I defend a final analysis of reading according to which a person reads a text when she uses some sensory modality to cognitively attend to the word structures embedded in that text for the purposes of ultimately grasping its content. Moreover, S must not relentlessly fail to map W to some of W’s contents, and S’s comprehension of W’s contents must be a causal result of W. (shrink)

Most philosophers would say that fictional characters lack spatiotemporal location simply because such entities do not exist. However, even prominent believers in ficta hold that they must lack location. I here focus on the views of one such believer, Amie Thomasson, and her Artifactual Theory. The fundamentals of her ontology seem correct, but I argue that the view implies that ficta do have location. I provide a diagnosis of an argument Thomasson gives for the contrary, and then suggest a way (...) for the Artifactual Theory to account for the locations of ficta. I conclude by discussing some potential applications of this contribution to other areas of philosophy. (shrink)

Much attention has been given to the question of ontic vagueness, and the issues usually center around whether certain paradigmatically concrete entities – cats, clouds, mountains, etc. – are vague in the sense of having indeterminate spatial boundaries. In this paper, however, I wish to focus on a way in which some abstracta seem to be locationally vague. To begin, I will briefly cover some territory already covered regarding certain types of “traditional” abstracta and the ways they are currently alleged (...) to be vague. I then wish to discuss two types of “nontraditional” abstracta and the sense in which I think some of these objects are locationally vague. I will next reexamine some of the traditional abstracta and discuss whether any of these objects are locationally vague in the novel way suggested for the nontraditional sorts. I’ll finish by discussing objections, and conclude with some remarks about characterizing the abstract/concrete distinction. (shrink)

In my “Creatures of Fiction, Objects of Myth” (2014), I present and defend an argument for thinking that mythical creationism—the view that mythical objects like phlogiston and Vulcan are abstract artifacts—is false. One intriguing sort of objection to my argument has been recently put forth by Zvolenszky (2016); she claims that a crucial premise is seen to be unjustified once one considers the phenomena of inadvertently created abstracta—specifically, inadvertently created fictional characters. I argue here that even if we admit inadvertently (...) created abstracta into our ontology, my argument survives. I ultimately defend a view on which fictional characters (if real) may be countenanced as created abstracta whether purposefully created or not, yet mythical objects are best taken to be discoverable, Platonic abstracta (if real). We can see that such a hybrid ontology is justified once we take proper note of the nature of the sorts of authorial activities involved in fictional storytelling and scientific hypothesizing. (shrink)

Th ere is much controversy surrounding the nature of the relation between fictional individuals and possible individuals. Some have argued that no fictional individual is a possible individual; others have argued that (some) fictional individuals just are (merely) possible individuals. In this paper, I off er further grounds for believing the theory of fictional individuals defended by Amie Thomasson,viz., Artifactualism, by arguing that her view best allows one to make sense of this puzzling relation. More specifically, when we realize that (...) the view allows for an identification of merely possible individuals with fictional individuals, we seethat the utility, and hence the level of credence lent to Artifactualism, is increased. After arguing for this thesis, I respond to three of the most pressing worries. (shrink)

Creationism is the view that fictional individuals such as Sherlock Holmes are contingently existing abstracta that come about due to the intentional activities of authors. Author-essentialism is the stronger thesis that the author responsible for bringing a fictional individual into existence at a time is essential to the existence of that individual. Takashi Yagisawa has recently attacked this view on the following grounds: author-essentialists rely on an ontological parallelism between fictional individuals and whole works of fiction, but this parallelism fails (...) to obtain. I here argue that Yagisawa’s grounds are weak. (shrink)

This is a review of Rene van Woudenberg's __The Epistemology of Reading and Interpretation__ (Cambridge: Cambridge University Press, 2022. Pp. v + 244. Price $99.99.) -/- .

The definitions of ‘deduction’ found in virtually every introductory logic textbook would encourage us to believe that the inductive/deductive distinction is a distinction among kinds of arguments and that the extension of ‘deduction’ is a determinate class of arguments. In this paper, we argue that that this approach is mistaken. Specifically, we defend the claim that typical definitions of ‘deduction’ operative in attempts to get at the induction/deduction distinction are either too narrow or insufficiently precise. We conclude by presenting a (...) deflationary understanding of the inductive/deductive distinction; in our view, its content is nothing over and above the answers to two fundamental sorts of questions central to critical thinking. (shrink)

Fine Individuation says it’s impossible for distinct people who are not collaborating on a work of art to produce one and same artwork. This is an intra-world thesis, but is necessarily true, if true at all. Author-Essentialism says it’s impossible for someone else to produce one and the same work of art produced by some actual artist. This is an alleged necessary truth regarding cross-world relations. Both theses have been vigorously defended. I here argue that both are false, but for (...) reasons that are entirely novel. (shrink)

One sort of usage of the phrase ‘talking past one another’ that is quite prevalent in the philosophical literature suggests the following account of a particular phenomenon of miscommunication: Agent A and agent B talk past one another during a philosophical discussion if and only if A has in mind one meaning or conception of a crucial expression P that is distinct from some meaning or conception of P had in mind by B. In this paper, however, I argue that (...) this account – given the sort of phenomenon it is intended to be an account of – misses the mark. I then present and critically examine various alternative accounts of this phenomenon often labeled ‘talking past one another,’ finally presenting what I think provides the basis for a correct account. (shrink)

Fine Individuation says it is impossible for distinct people who are not collaborating on a work of art to produce one and same artwork. This is an intra-world thesis, but is necessarily true, if true at all. Author Essentialism says it is impossible for someone else to produce one and the same work of art produced by some actual artist. This is an alleged necessary truth regarding cross-world relations. Both theses have been vigorously defended. I argue here that both are (...) false, but for reasons that are entirely novel. (shrink)

Kendall Walton’s pretense theory, like its rivals, says that what’s true in a fiction F depends in part on the importation of background propositions into F. The aim of this paper is to present, explain, and defend a brief yet straightforward argument–one which exploits the specific mechanism by which the pretense theory says propositions are imported into fictions–for the falsity of the pretense theory.

The American Journal of Bioethics, Volume 12, Issue 5, Page 20-22, May 2012.

In this dissertation, I critically investigate the usefulness of impossible worlds in the analysis of various modal concepts. I argue that we have reason to adopt analyses that appeal to impossible worlds of a very conservative variety, but that we should reject analyses that appeal to radically impossible worlds, or worlds where some classical contradictions are true. ;I begin by presenting and motivating two theories of possible worlds. These views are two of the most prominent and widely accepted conceptions of (...) worlds, the first being the conception most famously endorsed by David Lewis , the second being the conception most famously endorsed by Alvin Plantinga . I next present and motivate two theories that posit both possible and impossible worlds. The first is a view suggested by Takashi Yagisawa , the second is a view often attributed to William Lycan . These latter two views are extensions of the former two views in that they take the existing Lewis and Plantinga frameworks and add impossible worlds of the same basic kind . ;I then present and critically discuss what I take to be the criteria that must be satisfied by any theory of worlds in order for it be counted as adequate. Each of the four worlds theories under consideration are evaluated with respect to these criteria; viz., plausibility of ontology, ability to accommodate core modal concepts, and ability to provide analyses of non-core modal concepts. I argue extensively for the claim that, given the particular failures of each of the four views with respect to these criteria, none should be regarded as adequate. ;In the concluding chapter, I suggest and endorse a new sort of worlds view: one that extends the Plantingean conception, but adds impossible worlds of an ultra-conservative variety. This theory of metaphysically impossible---but logically possible---worlds, I argue, comes closest to satisfying all of the criteria for adequacy. (shrink)

Bidirectional deep brain stimulation (DBS) platforms have enabled a surge in hours of recordings in naturalistic environments, allowing further insight into neurological and psychiatric disease states. However, high amplitude, high frequency stimulation generates artifacts that contaminate neural signals and hinder our ability to interpret the data. This is especially true in psychiatric disorders, for which high amplitude stimulation is commonly applied to deep brain structures where the native neural activity is miniscule in comparison. Here, we characterized artifact sources in recordings (...) from a bidirectional DBS platform, the Medtronic Summit RC + S, with the goal of optimizing recording configurations to improve signal to noise ratio (SNR). Data were collected from three subjects in a clinical trial of DBS for obsessive-compulsive disorder. Stimulation was provided bilaterally to the ventral capsule/ventral striatum (VC/VS) using two independent implantable neurostimulators. We first manipulated DBS amplitude within safe limits (2–5.3 mA) to characterize the impact of stimulation artifacts on neural recordings. We found that high amplitude stimulation produces slew overflow, defined as exceeding the rate of change that the analog to digital converter can accurately measure. Overflow led to expanded spectral distortion of the stimulation artifact, with a six fold increase in the bandwidth of the 150.6 Hz stimulation artifact from 147–153 to 140–180 Hz. By increasing sense blank values during high amplitude stimulation, we reduced overflow by as much as 30% and improved artifact distortion, reducing the bandwidth from 140–180 Hz artifact to 147–153 Hz. We also identified artifacts that shifted in frequency through modulation of telemetry parameters. We found that telemetry ratio changes led to predictable shifts in the center-frequencies of the associated artifacts, allowing us to proactively shift the artifacts outside of our frequency range of interest. Overall, the artifact characterization methods and results described here enable increased data interpretability and unconstrained biomarker exploration using data collected from bidirectional DBS devices. (shrink)

I here review Peter Alward's (2012) _Empty Revelations_.

I here review Anthony Everett's (2013) _The Nonexistent_.

In his new foreword to this edition, Hilary Putnam forcefully rejects these nativist claims.

In this reply I defend Kripke’s creationist thesis for mythical objects against Jeffrey Goodman’s counter-argument to the thesis, 35–40, 2014). I argue that Goodman has mistaken the basis for when mythical abstracta are created. Contrary to Goodman I show that, as well as how, Kripke’s theory consistently retains the analogy between creation of mythical objects and creation of fictional objects, while also explaining in what way they differ.

This brief paperback is designed for symbolic/formal logic courses. It features the tree method proof system developed by Jeffrey. The new edition contains many more examples and exercises and is reorganized for greater accessibility.

Essays discuss cognition, perception, art, science, truth, metaphor, education, philosophy, and cognitive psychology.

The Tattvasaṃgraha, or Encyclopedia of Metaphysics, is the most influential and most frequently studied philosophical text from the late period of Indian Buddhism. This edition includes verses by Śāntarakṣita (c. 725-788 CE), which are clarified and expounded in the commentary of his student Kamalaśīla (c. 740-795 CE); both of these authors played crucial roles in founding the Buddhist tradition of Tibet. In the Tattvasaṃgraha, they explain, discuss and critique a vast range of views and arguments from across the whole South (...) Asian philosophical and religious spectrum. The work deals at length with ideas drawn from Buddhism, Jainism, and a variety of traditions now incorporated within Hinduism, including Mīmāṃsā, Nyāya-vaiśeṣika, and Sāṃkhya; it also includes the earliest discussion of Advaita Vedānta in any Buddhist text. The chapters selected for translation from Sanskrit and Tibetan deal with such fundamental philosophical issues as the existence or nonexistence of God and the soul; the nature of matter and of causal relationships; the connection between words and their referents; the rules of logic; the sources of our knowledge; and the compatibility of beliefs about karma with Buddhism's fundamental claim that there is no self. Introductory chapters discuss translation choices and explain the forms of argument and methods of reasoning employed by Śāntarakṣita and Kamalaśīla. (shrink)

Fundamental Buddhist teachings -- Main features of some western ethical theories -- Teravāda ethics as rule-consequentialism -- Mahāyāna ethics before Śāntideva and after -- Transcending ethics -- Buddhist ethics and the demands of consequentialism -- Buddhism on moral responsibility -- Punishment -- Objections and replies -- A Buddhist response to Kant.

That believing truly as a matter of luck does not generally constitute knowing has become epistemic commonplace. Accounts of knowledge incorporating this anti-luck idea frequently rely on one or another of a safety or sensitivity condition. Sensitivity-based accounts of knowledge have a well-known problem with necessary truths, to wit, that any believed necessary truth trivially counts as knowledge on such accounts. In this paper, we argue that safety-based accounts similarly trivialize knowledge of necessary truths and that two ways of responding (...) to this problem for safety, issuing from work by Williamson and Pritchard, are of dubious success. (shrink)

Followers of Wittgenstein allegedly once held that a meaningful claim to know that p could only be made if there was some doubt about the truth of p. The correct response to this thesis involved appealing to the distinction between the semantic content of a sentence and features attaching to its use. It is inappropriate to assert a knowledge-claim unless someone in the audience has doubt about what the speaker claims to know. But this fact has nothing to do with (...) the semantic content of knowledgeascriptions; it is entirely explicable by appeal to pragmatic facts about felicitous assertion. (shrink)

Conditional excluded middle (CEM) is the following principe of counterfactual logic: either, if it were the case that φ, it would be the case that ψ, or, if it were the case that φ, it would be the case that not-ψ. I will first show that CEM entails the identity of indiscernibles, the falsity of physicalism, and the failure of the modal to supervene on the categorical and of the vague to supervene on the precise. I will then argue that (...) we should accept these startling conclusions, since CEM is valid. (shrink)

Thats logic. LEWIS CARROLL, Through the Looking Glass 1-1. The fundamental problem of this work is the question of the nature of scientific inference.

Data science, and the related field of big data, is an emerging discipline involving the analysis of data to solve problems and develop insights. This rapidly growing domain promises many benefits to both consumers and businesses. However, the use of big data analytics can also introduce many ethical concerns, stemming from, for example, the possible loss of privacy or the harming of a sub-category of the population via a classification algorithm. To help address these potential ethical challenges, this paper maps (...) and describes the main ethical themes that were identified via systematic literature review. It then identifies a possible structure to integrate these themes within a data science project, thus helping to provide some structure in the on-going debate with respect to the possible ethical situations that can arise when using data science analytics. (shrink)

On the traditional relationalist conception of singular thought, a thought has singular content when it is based on an ‘information relation’ to its object. Recent work rejects relationalism and suggests singular thoughts are distinguished from descriptive thoughts by their inferential role: only thoughts with singular content can be employed in ‘direct’ inferences, or inferences that ‘trade on identity’. Firstly this view is insufficiently clear, because it conflates two distinct ideas—one about a kind of inference, the other a kind of process (...) that grounds inferences—under the title, ‘trading on identity’. Secondly, this leaves us without a notion that can be used as an alternative to relationalism about singular thought. The first notion is no more applicable to singular than to descriptive thought. The second may help us better understand singular thought, but does so, not by replacing the view that singular thoughts are information-based, but by helping us understand the nature of information-based thought. (shrink)

Richard Jeffrey is beyond dispute one of the most distinguished and influential philosophers working in the field of decision theory and the theory of knowledge. His work is distinctive in showing the interplay of epistemological concerns with probability and utility theory. Not only has he made use of standard probabilistic and decision theoretic tools to clarify concepts of evidential support and informed choice, he has also proposed significant modifications of the standard Bayesian position in order that it provide a (...) better fit with actual human experience. Probability logic is viewed not as a source of judgment but as a framework for explaining the implications of probabilistic judgments and their mutual compatability. This collection of essays spans a period of some 35 years and includes what have become some of the classic works in the literature. There is also one completely new piece, while in many instances Jeffrey includes afterthoughts on the older essays. (shrink)

Could space consist entirely of extended regions, without any regions shaped like points, lines, or surfaces? Peter Forrest and Frank Arntzenius have independently raised a paradox of size for space like this, drawing on a construction of Cantor’s. I present a new version of this argument and explore possible lines of response.

There are two main ways in which things with minds, like us, differ from things without minds, like tables and chairs. First, we are conscious--there is something that it is like to be us. We instantiate phenomenal properties. Second, we represent, in various ways, our world as being certain ways. We instantiate representational properties. Jeff Speaks attempts to make progress on three questions: What are phenomenal properties? What are representational properties? How are the phenomenal and the representational related?

The so-called ‘mental files theory’ in the philosophy of mind stems from an analogy comparing object-concepts to ‘files’, and the mind to a ‘filing system’. Though this analogy appears in philosophy of mind and language from the 1970s onward, it remains unclear to many how it should be interpreted. The central commitments of the mental files theory therefore also remain unclear. Based on influential uses of the file analogy within philosophy, I elaborate three central explanatory roles for mental files. Next, (...) I outline several common criticisms of the file picture, which have been a source of resistance to the view. Finally, I outline several interpretations of the theory, thus highlighting that the best interpretation of the file-theory's central analogy remains a live issue. (shrink)

The Face of the Other and the Trace of God contain essays on the philosophy of Emmanuel Levinas, and how his philosophy intersects with that of other philosophers, particularly Husserl, Kierkegaard, Sartre, and Derrida. This collection is broadly divided into two parts: relations with the other, and the questions of God.