his paper presents a unified treatment of the propositional and first-order many-valued logics through the method of tableaux. It is shown that several important results on the proof theory and model theory of those logics can be obtained in a general way. We obtain, in this direction, abstract versions of the completeness theorem, model existence theorem (using a generalization of the classical analytic consistency properties), compactness theorem and Lowenheim-Skolem theorem. The paper is completely self-contained and includes examples of application to (...) particular many-valued formal systems. (shrink)

In this paper, I hope to show that by considering connections between Bertrand Russell’s early account of names and C.I. Lewis’s theory of propositions, one can see that propositions (as traditionally understood)—while perhaps not explicitly relying on Russellian names, derive a good deal of their plausibility from them. I argue, however, that the Russellian take on names implies Tractarian restrictions on what may be named that are inconsistent with the traditional theory of structured propositions. That is, (i) it is a (...) mistake to claim that any meaningful string of linguistic (or ‘lexical’) entities—whether concrete or abstract—can name facts; (ii) no putative structured abstracta may be named by anything whatever; and (iii) if propositions may not be named and are not necessary to accomplish such tasks as providing objects for attitudes or being bearers of truth-values, then they would likely have been expelled from philosophical ontologies except for the persistence of an alluring myth. (shrink)

Recent advances in human genetics suggest that it may become possible to genetically manipulate telomerase and embryonic stem cells to alter the mechanisms of aging and extend the human life span. But a life span significantly longer than the present norm would be undesirable because it would severely weaken the connections between past‐ and future‐oriented mental states and in turn the psychological grounds for personal identity and prudential concern for our future selves. In addition, the collective effects of longer lives (...) might lower the quality of life for all people. These two problems provide reasons against genetic manipulation of cells to alter the length of the human life span. (shrink)

Psychopathy involves impaired capacity for prudential and moral reasoning due to impaired capacity for empathy, remorse, and sensitivity to fear-inducing stimuli. Brain abnormalities and genetic polymorphisms associated with these traits appear to justify the claim that psychopaths cannot be morally responsible for their behavior. Yet psychopaths are capable of instrumental reasoning in achieving their goals, which suggests that they have some capacity to respond to moral reasons against performing harmful acts and refrain from performing them. The cognitive and affective impairment (...) of the psychopath justifies mitigated responsibility, but not excuse. (shrink)

What is the role of consciousness in nature? The science of consciousness has largely neglected the question through its emphasis on human experience. In this précis of A Philosophy for the Science of Animal Consciousness, I outline how we can move from a top-down approach that begins with investigations in humans to an evolutionary bottom-up approach that targets the adaptive origins of even the most minimal forms of subjective experience. I will also offer an introduction to the central thesis of (...) the book, i.e. the pathological complexity thesis, according to which consciousness evolved in order to enable animals to adaptively respond to their life history challenges. (shrink)

A small, insignificant-looking intellectual with absurdly long legs, Søren Kierkegaard (1813-1855) was a veritable Hans Christian Andersen caricature of a man. A strange combination of witty cosmopolite and melancholy introvert, he spent years writing under a series of fantastical pseudonyms, lavishing all the splendor of his magnificent mind on a seldom-appreciative world. He had a tragic love affair with a young girl, was dominated by an unforgettable Old Testament father, fought a sensational literary duel with a popular satiric magazine, and (...) died in the midst of a violent quarrel with the state church for which he had once studied theology. Yet this iconoclast produced a number of brilliant books that have profoundly influenced modern thought. In this classic biography, the celebrated Kierkegaard translator Walter Lowrie presents a charming and warmly appreciative introduction to the life and work of the great Danish writer. Lowrie tells the story of Kierkegaard's emotionally turbulent life with a keen sense of drama and an acute understanding of how his life shaped his thought. The result is a wonderfully informative and entertaining portrait of one of the most important thinkers of the past two centuries. This edition also includes Lowrie's wry essay "How Kierkegaard Got into English," which tells the improbable story of how Lowrie became one of Kierkegaard's principal English translators despite not learning Danish until he was in his 60s, as well as a new introduction by Kierkegaard scholar Alastair Hannay. (shrink)

The author nationally recognized for the quality and depth of his teaching in religious studies has written the first full-scale introduction to the history and methods of the study of religion.

Often, new technology brings in its train unprecedented problems. As far as computers, e-mail and the internet are concerned, this certainly holds true in many arenas. But there is one aspect of this new technology which does not present additional difficulties: cyber-slacking. The managerial challenges posed by employees using these amenities for job search, shopping sprees, personal relationships, in a word, general goofing off, have long ago already been overcome by employers. There is 'nothing new under the sun' in at (...) least this one dimension of the computer age. (shrink)

Obsessive-compulsive disorder (OCD) and other psychiatric disorders can interfere with a person’s capacity to control the nature of his mental states and how they issue in his decisions and actions. Insofar as this sort of control is identified with free will, and psychiatric disorders can impair this control, these disorders can impair free will. The will can be compromised by dysregulated neural networks that disable the mental mechanisms necessary to regulate thought, motivation, and action. Neural and mental dys-function result in (...) the maladaptive and pathological behaviors associated with these disorders. In “Obsessive-Compulsive Disorder, Free Will, and Control,” Gerben Meynen (2012) rightly .. (shrink)