A novel photon-based proton model is developed. A proton’s ground state is assumed to be coherent to the degree that all of its mass-energy precipitates into a single uncharged spherical structure. A quantum vortex, initiated by the strong force, but sustained in the proton’s ground state by the circular Unruh effect and a spherical Rindler horizon, is proposed to confine the proton’s mass-energy in its ground state. A direct connection between the circular Unruh effect, the zitterbewegung effect, spin, and general (...) relativity is proposed. Such a structure acts as an uncharged zitterbewegung fermion, and may explain neutrino mass. A ground-state proton’s central zitterbewegung fermion is assumed to be surrounded by a halo of charge shells of both signs. Virtual photon standing waves are assumed to synchronize the inner shell with the central zitterbewegung fermion. The charge shells are proposed to be associated with isospin and proton g-factor. There are only two model inputs—proton mass and quantized electronic charge—and just one adjustable parameter. The adjustable parameter, reduced only by about 0.4% from an initial estimate, provides the proton’s experimentally determined magnetic moment to arbitrary precision. The resulting modeled proton charge radius agrees very well with the 2018 CODATA value. Magnetic moment and charge radius are calculated algebraically in a manner easily understood by undergraduate physics students. This proposed ground-state proton model could be considered a low-energy approximation to a full quantum chromodynamical proton model. (shrink)

This paper contributes to the principled construction of tableau-based decision procedures for hybrid logic with global, difference, and converse modalities. We also consider reflexive and transitive relations. For converse-free formulas we present a terminating control that does not rely on the usual chain-based blocking scheme. Our tableau systems are based on a new model existence theorem.

McKay & Dennett (M&D) look for adaptive misbeliefs that result from the normal, though fallible, functioning of human cognition. Their account can be substantially improved by the addition of two elements: (1) significance of a belief's testability for its functionality, and (2) an account of reason appropriate to understanding systemic misbelief. Together, these points show why religion probably is an adaptive misbelief.

I will put forward a short, simple argument for a pair of realist claims: metaphysical realism and what I will refer to as epistemological realism. The argument will rely upon nothing more than our apparent memories. Having presented the argument, I will go on to consider possible objections to it, of which there will be a number but none of which will do more than complicate the matter. The argument I present borrows from Peirce’s view that the world’s capacity to (...) surprise us plays a vital role in guiding us toward truth, and from the argument to the best explanation. However, it combines the two views in a way I have not seen done previously. (shrink)

The acceptance of the concept of necessary linguistic cate­gories has given renewed prominence to the subject of ontology in contemporary discussions of language and logic. Jack Kaminsky, Professor of Philosophy at the State University of New York at Binghamton, here contributes an important expo­sition of this school of thought. He examines the views of many philosophers who either admit or deny that ontological com­mitments are necessary, and he raises broad questions and shows why there is a compelling interest in (...) the relation of a formal language to the issue of ontological inquiry. (shrink)

Prof. Wójcicki calls his position ‘radically pragmatist’. I will argue, however, that it is not nearly pragmatic enough. In particular, I will argue that his view is not pragmatist enough in three vital respects - even though it greatly improves upon how these issues have been traditionally dealt with.

We show that the relational semantics of the Lambek calculus, both nonassociative and associative, is also sound and complete for its extension with classical propositional logic. Then, using filtrations, we obtain the finite model property for the nonassociative Lambek calculus extended with classical propositional logic.

It is shown that the expressive power of second-order propositional modal logic whose modalities are S4.2 or weaker is the same as that of second-order predicate logic.

"Konrad Talmont-Kaminski offers a very thoughtful and thought-provoking critique of the field and an alternative approach to magic, religion, and science that should spark some debate and further research Talmont-Kaminski has thrown down a challenge to the mainstream of anthropological thought about religion, and it is a challenge that we necessarily and gladly pick up." -- Anthropology Review Database "A philosophical naturalist's delight, this book - crisply written and carefully argued - weaves together insights about evolution, mind, and society to (...) explain how religions work and how secularisation threatens them." - Robert N. McCauley, Emory University Is religious belief a product of the mind? This book brings to light the multifaceted relationship between reason and religion. Religion as Magical Ideology examines the relationship between rationality and supernatural beliefs arguing that such beliefs are products of evolution, cognition and culture. The book does not offer a false rapprochement between reason and religion; instead, it explores their interrelationship as a series of complex adaptations between cognitive and cultural processes. Exploring the nature of the tension between religious traditions and reason, Religion as Magical Ideology develops a dual inheritance theory of religion - which combines the cognitive byproduct and prosocial adaptation accounts - and analyses the connection between the function of a belief and the degree of protection it gets from potential counter-evidence. With discussion ranging from individual cognitive mechanisms, general functional considerations, to the limits of evolutionary and cognitive processes, the book offers readers a systematic account of how cognition shapes religious beliefs and practices. (shrink)

To account for a perceived distinction it is necessary to postulate a real distinction. Our process of experiencing the world is one of, mostly unconscious, interpretation of observed distinctions to provide us with a partial world-picture that is sufficient to guide action. The distinctions, themselves, are acorrigible (they do not have a truth value), directly perceived, structured, and capable of being interpreted. Interpreted experience is corrigible, representational and capable of guiding action. Since interpretation is carried out mostly unconsciously and in (...) real time, the two aspects are present in experience together so that it is difficult to separate them out. (shrink)

Communication is an essentially cooperative activity. However, cooperation only makes sense in a particular kind of environment – one in which cooperation leads to shared benefits. This can be seen once we take Grice’s Cooperative Principle and consider its implications in the general context of game theory. The effect is that something like metaphysical realism underpins normal human discourse, such discourse becoming impossible without that presumption.

Pascal described human beings as ‘thinking reeds’, weak in flesh but magnificent in mind. While it is a poetic image, it is also an ambivalent one and may suggest an inappropriately dualist view of human nature. It is important to realise that not only are we thinking reeds but that we are thinking because we are reeds. In fact, rationality is reed-like itself, very much of a kind with the rest of human nature. It is now more than two and (...) half centuries since David Hume first pointed out the lack of an argument that would fully justify claims about matters of fact. Being neither made evident by our observations nor arising out of the mere considera-tion of relations of ideas, claims such as that the turkey will be fed dinner tomo-rrow – rather than being had for dinner have remained problematic ever since. Many attempts have been made to show that something of the beauty and certainty of reasoning about relations of ideas could be recaptured in our dealings with matters of fact, but all attempts have remained mere shadows of what we tried to grasp. Hume’s argument stands. An infinite being might watch countless sun-sets and yet should witness each new sun-rise with surprise, always withholding its judgement regarding what will follow. (shrink)

“Metaphysical questions relating to what ex­ists do not seem to fade away” notes Jack Kaminsky in this book, which takes as its starting point the Quinian view that we de­termine what exists by means of the formal systems we construct to explain the world. This starting point, Kaminsky points out, is not novel; philosophers have often tried to construct formal systems, and from these systems they have been able to deduce what can be said to exist. Contemporary formal (...) systems are different from earlier ones, how­ever, because they make more extensive use of the results of linguistics, logic, and mathe­matics studies. But these contemporary formal systems also must state eventually what their commitments to existence are, and they must be able to show their commit­ments to be free of paradox, ambiguity, and contradiction. Given these conditions, Kaminsky exam­ines the difficulties inherent in the existence claims of contemporary formal language systems. To do this he uses only a minimum of the technical elements of propositional and first-order quantificational logic. He concludes: many existential commitments are relative to the formal systems of time; some commitments seem to be absolute; and some problems—those relating to vacuous terms—arise only because no distinction is made between humanly constructed objects and naturally constructed objects. (shrink)

Blumenberg has sometimes described his work as a phenomenology of history. The connection between history and phenomenology is particularly striking in the context of Blumenberg’s contributions to the philosophy of technology. In the course of his analysis of Husserl’s Krisis, Blumenberg develops, as my contribution aims to show, a conception of history in which complete technologization leads to a perfected lifeworld. Blumenberg formulates this partly explicitly within the framework of a three-stage model of history, but there are also implicit insights (...) in Blumenberg’s texts that seem to work with such a structuring of history. (shrink)

Both science and religion are human endeavours that recruit and modify pre-existing human capacity to engage in epistemic vigilance. However, while science relies upon a focus on content vigilance, religion focusses on source vigilance. This difference is due, in turn, to the function of religious claims not being connected to their accuracy – unlike the function of scientific claims. Understanding this difference helps to understand many aspects of scientific and religious institutions.

Religious beliefs, it has been noted, are often hard to disprove. While this would be a shortcoming for beliefs whose utility was connected to their accuracy, it is actually necessary in the case of beliefs whose function bears no connection to how accurate they are. In the case of religions and other ideologies that serve to promote prosocial behaviour this leads to the need to protect belief systems against potentially disruptive counterevidence while maintaining their relevance. Religions turn out to be (...) particularly adept at this because of the use they make of existing cognitive by-products to make them plausible without exposingthem overly to investigation. (shrink)

One of the most common terms in late-medieval discourse is “estate” in its Latin or vernacular forms: status, estat, estado, stato, stav, stat, stand, etc. Its basic sense, derived from stare and common to a wide variety of meanings in various contexts, can be recognized in such modern English equivalents as “status,” “station,” “estate,” “stately,” “state,” “standing,” and the like. Its secondary, particular meanings, however, cannot be regularly perceived on this basis, and in all cases there are problems beneath the (...) surface due to the structural differences between Alteuropa and the “modern” world of the nineteenth century, as well as the postmodernity of the twentieth. (shrink)