We study arithmetic and hyperarithmetic degrees of categoricity. We extend a result of E. Fokina, I. Kalimullin, and R. Miller to show that for every computable ordinal $\alpha$, $\mathbf{0}^{}$ is the degree of categoricity of some computable structure $\mathcal{A}$. We show additionally that for $\alpha$ a computable successor ordinal, every degree $2$-c.e. in and above $\mathbf{0}^{}$ is a degree of categoricity. We further prove that every degree of categoricity is hyperarithmetic and show that the index set of structures with degrees (...) of categoricity is $\Pi_{1}^{1}$-complete. (shrink)

Both children and adults predict the content of upcoming language, suggesting that prediction is useful for learning as well as processing. We present an alternative model which can explain prediction behaviour as a by-product of language learning. We suggest that a consideration of language acquisition places important constraints on Pickering & Garrod's (P&G's) theory.

Although informed consent is important in clinical research, questions persist regarding when it is necessary, what it requires, and how it should be obtained. The standard view in research ethics is that the function of informed consent is to respect individual autonomy. However, consent processes are multidimensional and serve other ethical functions as well. These functions deserve particular attention when barriers to consent exist. We argue that consent serves seven ethically important and conceptually distinct functions. The first four functions pertain (...) principally to individual participants: (1) providing transparency; (2) allowing control and authorization; (3) promoting concordance with participants' values; and (4) protecting and promoting welfare interests. Three other functions are systemic or policy focused: (5) promoting trust; (6) satisfying regulatory requirements; and (7) promoting integrity in research. Reframing consent around these functions can guide approaches to consent that are context sensitive and that maximize achievable goals. (shrink)

Proximity and interpersonal contact are prominent components of social connection. Giving affective touch to others is fundamental for human bonding. This brief report presents preliminary results from a pilot study. It explores if exposure to bonding scenes impacts the activity of specific muscles related to physical interaction. Fingers flexion is a very important component when performing most actions of affectionate contact. We explored the visuo-motor affective interplay by priming participants with bonding scenes and assessing the electromyographic activity of the fingers (...) flexor muscle, in the absence of any overt movements. Photographs of dyads in social interaction and of the same dyads not interacting were employed. We examined the effects upon the electromyographical activity: during the passive exposure to pictures, and during picture offset and when expecting the signal to perform a fingers flexion task. Interacting dyads compared to matched non-interacting dyads increased electromyographic activity of the fingers flexor muscle in both contexts. Specific capture of visual bonding cues at the level of visual cortex had been described in the literature. Here we showed that the neural processing of visual bonding cues reaches the fingers flexor muscle. Besides, previous visualization of bonding cues enhanced background electromyographic activity during motor preparation to perform the fingers flexion task, which might reflect a sustained leakage of central motor activity downstream leading to increase in firing of the respective motor neurons. These data suggest, at the effector level, an implicit visuo-motor connection in which social interaction cues evoke intrinsic dispositions toward affectionate social behavior. (shrink)

In qualitative decision theory, a very natural way for defining preference relations over policies (acts) -functions from a set S of states to a set X of consequences- is by using the so called Dominance Plausible Rule. In this context we need a relation > over X and a relation ? over P(S) (the subsets of S). Then we define ≥ as follows: f ≥ g, ? [f > g] ? [g > f], where [f > g] denotes the set (...) {s ? S : f(s) > g(s)g}. In many cases > is a modular relation and ? is a total preorder. A quite rational and desirable property for the relation over policies is transitivity. In general, the relation ≥ defined by the Dominance Plausible Rule is not transitive in spite of the transitivity of ?. In this work we characterize the properties of the relation ? forcing the relation ≥ over policies to be transitive. All this under the hypothesis of modularity of the relation >. (shrink)

Contemporary developments in American epistemology, by R. M. Chisholm.--Contemporary metaphysics in the United States, by D. F. Gustafson.--Philosophy of physics, by H. Putnam--The influence of continental philosophy on the contemporary American scene: a summons to autonomy, by G. A. Scharader, Jr.--The influence of the later Wittgenstein on American philosophy, by J. O. Nelson.--Philosophy of mind, by F. H. Donnell, Jr.--Some remarks on the philosophy of language, by J. A. Fodor.--Ethics in the United States today, by D. Kading.--Social philosophy; philosophy of (...) social science, by P. Diesing. (shrink)

In order to fulfil their essential roles as the bearers of truth and the relata of logical relations, propositions must be public and shareable. That requirement has favoured Platonist and other nonmental views of them, despite the well-known problems of Platonism in general. Views that propositions are mental entities have correspondingly fallen out of favour, as they have difficulty in explaining how propositions could have shareable, objective properties. We revive a mentalist view of propositions, inspired by Artificial Intelligence work on (...) perceptual algorithms, which shows how perception causes persistent mental entities with shareable properties that allow them to fulfil the traditional roles of (one core kind of) propositions. The clustering algorithms implemented in perception produce outputs which are (implicit) atomic propositions in different minds. Coordination of them across minds proceeds by game-theoretic processes of communication. The account does not rely on any unexplained notions such as mental content, representation, or correspondence (although those notions are applicable in philosophical analysis of the result). (shrink)

The Encyclopedia of Philosophy could state accurately in 1967: "Of all the major German philosophers, Schelling is the least known in the English-speaking world." A tentative survey discloses few articles and books on one who is casually ranked with Hegel. There is, in fact, not one book-length study in English on Schelling’s thought.

En el ámbito de la lógica matemática existe un problema sobre la relación lógica entre dos versiones débiles del Axioma de elección (AE) que no se ha podido resolver desde el año 2000 (aproximadamente). Tales versiones están relacionadas con ultrafiltros no principales y con Propiedades Ramsey (Bernstein, Polarizada, Subretículo, Ramsey, Ordinales flotantes, etc). La primera versión débil del AE es la siguiente (A): “Existen ultrafiltros no principales sobre el conjunto de los números naturales (ℕ)”. Y la segunda versión débil del (...) AE es la siguiente (B): “Existen ultraflitros sobre ℕ”. Se sabe que A implica B, pero se desconoce si B implica A. Di Prisco y Henle conjeturan en los artículos ([1], [2]) que esto no ocurre, es decir, conjeturan que B no implica A, en otras palabras, conjeturan que A es más fuerte estrictamente que B, que A es independiente de B, pero esto no se ha podido demostrar todavía aunque se ha intentado hacer desde hace aproximadamente 21 años. Una descripción detallada de este problema abierto puede encontrarse en esta ponencia (dictada en el marco del Día Mundial de la Lógica 14-01-2022) y en el artículo [3]. [1] C. Di Prisco y H. Henle. “Doughnuts, Floating Ordinals, Square Brackets, and Ultraflitters”. Journal of Symbolic Logic 65 (2000) 462-473. [2] C. Di Prisco y H. Henle. “Partitions of the reals and choice”. En “Models, algebras and proofs”. X. Caicedo y C.M. Montenegro. Eds. Lecture Notes in Pure and Appl. Math, 203, Marcel Dekker, 1999. [3] F. Galindo. “Tópicos de ultrafiltros”. Divulgaciones Matemáticas. Vol. 21, No 1-2, 2020. (shrink)

The objective of this article is to present an original proof of the following theorem: Thereis a generic extension of the Solovay’s model L(R) where there is a linear order of P(N)/fin that extends to the partial order (P(N)/f in), ≤*). Linear orders of P(N)/fin are important because, among other reasons, they allow constructing non-measurable sets, moreover they are applied in Ramsey's Theory .

In this commentary on D. Nails, “Two Dogmas of Platonism,” I focus on her arguments for the claim that the Good is not the unhypothetical principle of everything in Plato’s Republic. I first examine what it would mean for any principle to be an unhypothetical principle of everything, and argue that Nails equivocates in her construal of this role. I then argue that Plato’s references to the unhypothetical principle should not be read to refer to a single, unique item, but (...) to each Form F in its role as the cause of a F phenomena. (shrink)

My dissertation develops a novel theory of free will and moral responsibility, Strawsonian libertarianism, which combines Strawsonianism about the concept of moral responsibility with event-causal libertarianism concerning its conditions of application. I construct this theory in light of and response to the three main objections to libertarianism: the moral shallowness objection, the intelligibility objection, and the empirical plausibility objection.The moral shallowness objection contends that libertarianism seems plausible only in the absence of a robust understanding of the nature of moral responsibility. (...) P.F. Strawson's work is the fount of this objection. In response I argue, surprisingly, that Strawson's account of the nature of responsibility, according to which the essence of responsibility is defined in terms of the reactive attitudes (such as gratitude and resentment), actually leads to libertarianism about its conditions of application. In defense of this contention I offer a theory of the normative force of excuse which shows that moral responsibility requires that agents have free will. I then construct the No Opportunity Argument which demonstrates that free will, and thus moral responsibility, is incompatible with determinism.In the remainder of the dissertation I develop and defend this account of moral responsibility against the intelligibility and empirical objections, both of which focus on my contention that indeterminism is necessary for freedom and responsibility. The intelligibility objection contends that libertarians cannot provide an intelligible account of freedom and responsibility because indeterminism is either (at best) irrelevant or (at worst) inimical to control. I respond to these objections by showing that if we locate indeterminism at the moment of free choice, libertarianism can explain both why indeterminism does not diminish control and also how it is relevant to enhancing it.Finally, I turn to the empirical plausibility objection which contends that libertarianism is scientifically implausible. This objection centers on my contention that humans must be indeterministic systems in order to be free and responsible. I argue that my commitment to neuronal indeterminism fares well in light of current physical and neurobiological findings and, therefore, that Strawsonian libertarianism is not as scientifically demanding as many have thought. (shrink)

It is immensely difficult to give a philosophically adequate account of mental imagery. Peter F.R. Haynes, pp. 709–19) objects to the standard accounts, and offers one of his own which avoids the standard difficulties. Unfortunately it in turn seems to lapse into incoherence.Haynes rejects Cartesian accounts which would make images private objects in non-physical space. He also rejects current alternative views: both Rylean or behaviourist ones; and also intentionally complex ones, which assert that the relevant terms change their meaning. He (...) thinks that J. J. C. Smart's “topic neutral” approach may supply “the basis for a correct, intentionally simple, intuitively satisfying account of mental imagery”. But an adequate account must also be neutral, as Smart's is not, between different theories of mind. In addition to avoiding these difficulties an adequate theory has certain other desiderata; in particular Haynes places valuable emphasis on the need to explain the fact that we can sometimes mistake images for real perceptions or, more real perceptions for images. (shrink)

It is immensely difficult to give a philosophically adequate account of mental imagery. Peter F.R. Haynes, pp. 709–19) objects to the standard accounts, and offers one of his own which avoids the standard difficulties. Unfortunately it in turn seems to lapse into incoherence.Haynes rejects Cartesian accounts which would make images private objects in non-physical space. He also rejects current alternative views: both Rylean or behaviourist ones; and also intentionally complex ones, which assert that the relevant terms change their meaning. He (...) thinks that J. J. C. Smart's “topic neutral” approach may supply “the basis for a correct, intentionally simple, intuitively satisfying account of mental imagery”. But an adequate account must also be neutral, as Smart's is not, between different theories of mind. In addition to avoiding these difficulties an adequate theory has certain other desiderata; in particular Haynes places valuable emphasis on the need to explain the fact that we can sometimes mistake images for real perceptions or, more real perceptions for images. (shrink)

In this innovative examination of works by Poe, Melville, Twain, Nabokov, Barth, and Pynchon, Herbert F. Smith establishes an aesthetic theory that allows for fresh readings of six problematic texts. He explores how the texts came to be written and what semiotic processes are involved in their creation, and in so doing he opens the way for new theoretical speculation.

Contrary to the views expressed in many introductory physics textbooks, Henry Cavendish did not measure G, the gravitational constant contained in Newton’s Law of Universal Gravitation, F = G m1m2/r2. As the title of his paper states, Cavendish conducted “Experiments to Determine the Density of the Earth (1798).” As discussed below, one can use that measurement to determine G, but that was not Cavendish’s intent. In fact, the determination of G was not done until the latter part of the nineteenth (...) century. (shrink)

Este artículo analiza las expectativas de futuro de personas venezolanas migrantes que se encuentran confinadas durante la pandemia. El trabajo de campo se realiza en el año 2020 por medio de entrevistas en el albergue de la Misión Scalabriniana en Cúcuta, Colombia. Abordamos la idea de la ilusión y el disimulo de A. Sayad, las expectativas de futuro desde F. Aliaga y el concepto de riesgo con U. Beck. Se concluye que las personas a pesar de las dificultades mantienen la (...) esperanza de alcanzar un destino en el cual mejorar su calidad de vida y poder salir adelante. (shrink)

By 1800 Schelling’s thought had moved from the Fichtean Ich through all-encompassing systems of objective nature to the point where the idea for a first synthesis, a first system, captured his attention. And so at twenty-five, at Jena, he composed the first of those systems written and published each year between 1800 and 1802.

In lieu of an abstract, here is a brief excerpt of the content:A Supplement to: "David Hume to Alexander Dick: A New Letter" Heiner F. Klemme Afterreading Hume'slettertoDick,1 Professor Ian Rosskindlybrought to my attention William R. Brock's book, Scotus Americanus: A survey ofthe sources for links between Scotland and America in the eighteenth century. There is helpful information in Brock's book toidentify the two Scots referred to by Hume in his letter to Sir Alexander Dick. The first ofthese men is (...) likely to be the Reverend George Panton,2 who had been in charge of the Grammar School at Jedburgh in 1769 and had obtained a degree from Marischal College. After becoming a clergyman of the Church of England, he set out for New York to take employment as tutor to the children of a Colonel Philips. He arrived there by June 1773. Hume belonged to a number ofinfluential friends who supported him in his undertaking. In his letter to Dick, Hume asked him to recommend Panton to a certain Mr Smith. This person is probably the Reverend Dr. William Smith,3 an episcopal divine, who was born in Aberdeenshire in 1727. After becoming a tutor to the children ofJosiah Martin, he arrived inNewYork in May 1751. During his short stay he wrote an anonymous pamphlet in which he urged the foundation ofa King's College there. The college came into existence in 1754, changing its name to Columbia University later on. Smith played an important role in the development ofAmerican higher education by promoting the new educational method ofthe Scottish universities. He was appointed to teach logic, rhetoric, ethics, and natural philosophy at Benjamin Franklin's new College of Philadelphia in 1754 and became first Provost of the then University of Pennsylvania a year later. It was Smith who edited and published American Magazine for the first time. Philipps-UniversitätMarburg Heiner Klemme, "David Hume to Alexander Dick: A New Letter," Hume Studies 16, no. 2 (November 1990): 87-88. William R. Brock, Scotus Americanus: A survey ofthe sources for links between Scotland and America in the eighteenth century (Edinburgh, 1982), 42, 107-8. Brock, 111-12. Volume XVII Number 1 87 88Hume Studies... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:A Supplement to: "David Hume to Alexander Dick: A New Letter" Heiner F. Klemme Afterreading Hume'slettertoDick,1 Professor Ian Rosskindlybrought to my attention William R. Brock's book, Scotus Americanus: A survey ofthe sources for links between Scotland and America in the eighteenth century. There is helpful information in Brock's book toidentify the two Scots referred to by Hume in his letter to Sir Alexander Dick. The first ofthese men is (...) likely to be the Reverend George Panton,2 who had been in charge of the Grammar School at Jedburgh in 1769 and had obtained a degree from Marischal College. After becoming a clergyman of the Church of England, he set out for New York to take employment as tutor to the children of a Colonel Philips. He arrived there by June 1773. Hume belonged to a number ofinfluential friends who supported him in his undertaking. In his letter to Dick, Hume asked him to recommend Panton to a certain Mr Smith. This person is probably the Reverend Dr. William Smith,3 an episcopal divine, who was born in Aberdeenshire in 1727. After becoming a tutor to the children ofJosiah Martin, he arrived inNewYork in May 1751. During his short stay he wrote an anonymous pamphlet in which he urged the foundation ofa King's College there. The college came into existence in 1754, changing its name to Columbia University later on. Smith played an important role in the development ofAmerican higher education by promoting the new educational method ofthe Scottish universities. He was appointed to teach logic, rhetoric, ethics, and natural philosophy at Benjamin Franklin's new College of Philadelphia in 1754 and became first Provost of the then University of Pennsylvania a year later. It was Smith who edited and published American Magazine for the first time. Philipps-UniversitätMarburg Heiner Klemme, "David Hume to Alexander Dick: A New Letter," Hume Studies 16, no. 2 (November 1990): 87-88. William R. Brock, Scotus Americanus: A survey ofthe sources for links between Scotland and America in the eighteenth century (Edinburgh, 1982), 42, 107-8. Brock, 111-12. Volume XVII Number 1 87 88Hume Studies... (shrink)