In this paper it is shown how plausible reasoning of the kind illustrated in the ancient Greek example of the weak and strong man can be analyzed and evaluated using a procedure in which the pro evidence is weighed against the con evidence using formal, computational argumentation tools. It is shown by means of this famous example how plausible reasoning is based on an audience’s recognition of situations of a type they are familiar with as normal and comprehensible in their (...) shared common knowledge. The paper extends previous work on this example by using three new multiagent argumentation schemes closely related to the scheme for argument from negative consequences. (shrink)

Consequentialism is an agent-neutral teleological theory, and deontology is an agent-relative non-teleological theory. I argue that a certain hybrid of the two—namely, non-egoistic agent-relative teleological ethics (NATE)—is quite promising. This hybrid takes what is best from both consequentialism and deontology while leaving behind the problems associated with each. Like consequentialism and unlike deontology, NATE can accommodate the compelling idea that it is always permissible to bring about the best available state of affairs. Yet unlike consequentialism and like deontology, NATE accords (...) well with our commonsense moral intuitions. (shrink)

In C.S. Lewis's science fiction parable Perelandra was a planet which had no solid ground. At all times the floating landscape was continually swirling and moving, chasms would appear where a minute before there had been safe standing. The rational beings who lived there hopped nimbly on to another little island when the one on which they stood disappeared under their feet. They were used to it and took it for granted that nothing was certain. The visitor from our planet (...) had to learn a completely new way of existence. But where did he get his idea of certainty in a fixed environment? It is more plausible that uncertainty is normal and the whole idea of certainty an illusion. Today gives an opportunity to reflect on how people deal with skepticism, doubt and uncertainty.The questions apply to a current debate in the UK on risk. Opinion polls constantly reveal that the public lacks trust in government, and particularly it does not trust the government to reveal the information needed to assess important risks. From which the risk analysts conclude that the government should grant access to information more freely and encourage enquiry. They believe that openness would foster a better understanding on the part of the public which at present does not know what to believe. More information would create certainty, more certainty and the public would trust its spokesmen, unreasonable fears would be calmed. This is the advice of an expert enquiry.Certainty is not a mood, or a feeling, it is an institution: this is my thesis. Certainty is only possible because doubt is blocked institutionally: most individual decisions about risk are taken under pressure from institutions. If we recognize more uncertainty now, it will be because of things that have happened to the institutional underpinning of our beliefs. And that is what we ought to be studying. In my student days the hottest controversies in anthropology were about why `other people' — that is people not living in advanced capitalist society — had certainty about their absurd beliefs.When trying to explain their misfortunes, why did they neglect the physical and scientific evidence, and draw instead on their beliefs in spirits, magic, and taboos? How could they be so obstinate in error? Anthropologists spent their energies on defending the allegedly irrational beliefs of other people, and I shall continue the tradition. (shrink)

ABSTRACTDrawing on my own work and experience, this paper brings together the various connections between critical realism and ethics. It argues that, against both determinism and physicalist...

Argumentation schemes are forms of argument that capture stereotypical patterns of human reasoning, especially defeasible ones like argument from expert opinion, that have proved troublesome to view deductively or inductively. Much practical work has already been done on argumentation schemes, proving their worth in A1 [19], but more precise investigations are needed to formalize their structures. The problem posed in this paper is what form justification of a given scheme, as having a certain precise structure of inference, should take. It (...) is argued that defeasible argumentation schemes require both a systematic and a pragmatic justification, of a kind that can only be provided by the case study method of collecting key examples of arguments of the types traditionally classified as fallacies, and subjecting them to comparative examination and analysis. By this method, postulated structures for schemes can be formulated as hypotheses to solve three kinds of problems: (1) how to classify such arguments into different types, (2) how to identify their premises and conclusions, and (3) how to formulate the critical questions used to evaluate each type of argument. (shrink)

This article considers what can be learned regarding the ethical acceptability of intrusive interventions intended to halt the spread of infectious disease (‘Infection Control’ measures) from existing ethical discussion of intrusive interventions used to prevent criminal conduct (‘Crime Control’ measures). The main body of the article identifies and briefly describes six objections that have been advanced against Crime Control, and considers how these might apply to Infection Control. The final section then draws out some more general lessons from the foregoing (...) analysis for the ethical acceptability of different kinds of Infection Control. (shrink)

This paper considers how the terms ‘objection,’ ‘rebuttal,’ ‘attack,’ ‘refutation,’ ‘rebutting defeater’ and ‘undercutting defeater’ are used in writings on argumentation and artificial intelligence. The central focus is on the term ‘rebuttal.’ A provisional classification system is proposed that provides a normative structure within which the terms can be clarified, distinguished from each other, and more precisely defined.

Cenzer, D., R. Downey, C. Jockusch and R.A. Shore, Countable thin Π01 classes, Annals of Pure and Applied Logic 59 79–139. A Π01 class P {0, 1}ω is thin if every Π01 subclass of P is the intersection of P with some clopen set. Countable thin Π01 classes are constructed having arbitrary recursive Cantor- Bendixson rank. A thin Π01 class P is constructed with a unique nonisolated point A and furthermore A is of degree 0’. It is shown that no (...) set of degree ≥0” can be a member of any thin Π01 class. An r.e. degree d is constructed such that no set of degree d can be a member of any thin Π01 class. It is also shown that between any two distinct comparable r.e. degrees, there is a degree that contains a set which is of rank one in some thin Π01 class. It is shown that no maximal set can have rank one in any Π01 class, while there exist maximal sets of rank 2. The connection between Π01 classes, propositional theories and recursive Boolean algebras is explored, producing several corollaries to the results on Π01 classes. For example, call a recursive Boolean algebra thin if it has no proper nonprincipal recursive ideals. Then no thin recursive Boolean algebra can have a maximal ideal of degree ≥0”. (shrink)

Understanding is not of the same kind in all contexts. Children learn the kind of understanding that is appropriate in particular contexts largely through a process of enculturation. This study examines some aspects of 10-year-old children's conceptions of understanding. There was evidence that they had admissible conceptions of understanding in general but may be unable to distinguish unaided between the kinds of understanding that are relevant in different disciplines. An explicit attention to enculturation in lesson plans may be of benefit (...) to such children. (shrink)

EVEN IF ’MIRACLE’ MEANS A VIOLATION OF A LAW OF NATURE, A CASE CAN BE MADE FOR THINKING THAT MIRACLES ARE POSSIBLE, DETECTABLE, AND COMPATIBLE WITH SCIENCE. THE CASE WORKS BY DEFINING A LAW-VIOLATION AS AN EVENT OF A KIND THAT IS EPISTEMICALLY IMPOSSIBLE UNLESS THERE IS GOOD EVIDENCE OF A GOD’S PRODUCING AN INSTANCE. HUMAN AND NON-HUMAN OBJECTIONS ARE CONSIDERED AND ANSWERED.

Psychometric properties of Attentional Control Scale: The preliminary study on a Polish sample The presented study was focused primarily on a psychometric analysis of the Attentional Control Scale, but they also enhanced the understanding of the role of effortful attentional skills in determining the individual well-being, general adaptation or emotional disorders. The analyses included basic item and scale descriptions as well as convergent and discriminant validity. 218 Polish undergraduate students completed the battery of the self-report techniques and two paper —pencil (...) attentional tests. Data revealed a unidimensional of a 20-item ACS. It can be used validly to assess long-term individual differences in attentional skills related to the voluntary executive functions. The analysis of content, internal and construct validity as well as reliability provided evidence of the scale's significant convergent and discriminant validity when correlated with attentional tests and other personality techniques. We found strong, systematic relations between the attentional control and selected measures of temperament, arousal, emotionality, and motivation. The results allow assuming that good attentional control, may protect individuals from the emotional disorders by regulating perceptual, conceptual, and response processing. (shrink)

Medieval literature is argumentative, since it argues for an idealized vision of reality acceptable to a proposed audience. Its narrative mode is description, performed according to the principles of the art of topical invention, derived from Cicero's De Inventione. The topoi or loci are features (circumstantiae) of a person or thing that are common to it as a class, such as tempus or locus for things. When filled out, according to the point of view desired by the author, public, context, (...) etc., they become the attributes (argumenta) of a particular human being or action.According to the author, all descriptions should be interpreted by reference to such a technique of topical invention, a method which will allow new explanations of the texts. The examples of the locus amoenus in various Latin and French works show how traditional and conventional models were adapted and specialized, by various devices, to fit new formal or conceptual intentions and new contexts. The examples and models proposed to the student learning composition by Masters such as Matthew of Vendôme, were given not to be copied, but to be imitated through topical invention, that is adaptation to a particular intention, through specializing devices. (shrink)

This essay argues that H. Richard Niebuhr's classic book, Christ and Culture, is best understood as a typology of moral theologies. Each of Niebuhr's five types may be regarded as a patterned resolution of four theological relations: reason and revelation, God and world, sin and goodness, and law and gospel. Many of his evaluative comments reflect his preference for what he calls a transformationist or conversionist pattern. However, it is not difficult to imagine evaluative comments on the several types, including (...) the transformationist one, made from the perspective of a different preferred resolution of the four theological relations. Moreover, Niebuhr's scheme remains useful for analyzing more recent texts in theological ethics, such as Gustavo Gutierrez's A Theology of Liberation. Thus, while the book is not without its flaws and while readers may wish to enter some emendations and revisions, Christ and Culture is still worth reading because the categories it presents for analyzing moral theologies remain unsurpassed in their richness, usefulness, and suggestiveness. (shrink)

Given the strength of Archer's case for a sexual selection account, he is too accommodating of the social roles alternative. We present data on historical changes in violent crime contradicting that perspective, and discuss recent evidence showing how an evolutionary perspective predicts sex similarities and differences responding in a flexible and functional manner to adaptively relevant triggers across different domains.

Para Nietzsche, Sócrates é o principal responsável pela inversão dos valores do mundo helênico. Na obra O Nascimento da tragédia, o “projeto socrático” é uma destruição da tragédia clássica, na qual os impulsos apolíneo e dionisíaco estavam unidos: esse projeto representa a afirmação da racionalidade em detrimento da arte enquanto expressão dos impulsos trágicos. Por sua vez, no Crepúsculo dos ídolos, Nietzsche critica a ascensão da dialética socrática entre os gregos, considerando o seu caráter degenerativo contra a vida e contra (...) os instintos. Caráter expresso nas últimas palavras de Sócrates: “Viver- significa estar há muito doente: eu devo um galo a Asclépio Salvador”. Assim, justifica-se este trabalho como uma apresentação das imagens de Sócrates nas obras acima referidas, para demonstrar os elementos principais que compõem a crítica nietzschiana à doença socrática. (shrink)

At the core of Swedenborg’s thought is the understanding that our purpose in this life is to progress spiritually—to learn, to grow, to do good works, and, ultimately, to allow as much of God’s love as possible to enter into us and manifest through us. Scattered throughout his works are descriptions of our mind and how it relates to both the physical and spiritual worlds. In this book, Taylor pulls these loose threads together and weaves them into a simple, coherent (...) whole, presenting Swedenborg’s teachings as a system that anyone can follow. Taylor describes the external or natural mind as primarily concerned with material things, and the inner mind, in its essence, as love. As we elevate our thoughts toward higher and higher types of love and wisdom, we draw closer to God and begin the process of regeneration, or rebirth as spiritual beings. This is the first time in many decades that a book has been published on Swedenborg’s philosophy of the mind. Taylor’s straightforward commentary gives readers a rare insight into this crucial aspect of Swedenborg’s theology. (shrink)

In this study, I chart the genealogy and development of new trends in high-tech warfare which have emerged in the past decade and note challenges and dangers. I discuss the Bush administrations’s military program and foreign policy moves, highlighting the ways that the Bush II cabal intensifies the dangers of high-tech war, while undermining efforts at collective security, environmental protection, and global peace. My argument is that the volatile mixture of a highly regressive and unilateralist and militarist administration with the (...) development of high-tech weapons provides a clear and present danger of a protracted and frightening period of war. The mixture of rightwing unilateralism and militarism dramatically erupted in the Bush administration’s military response to the terrorist attacks of September 11 and is intensifying the dangers to world peace in the Bush military campaign against terrorism which they are labeling “World War III.”. (shrink)

The existence of either a maximum or a minimum for a uniformly continuous mapping f of a compact interval into ${\mathbb{R}}$ is established constructively under the hypotheses that f′ is sequentially continuous and f has at most one critical point.

Two classically equivalent, but constructively inequivalent, strict convexity properties of a preference relation are discussed, and conditions given under which the stronger notion is a consequence of the weaker. The last part of the paper introduces uniformly rotund preferences, and shows that uniform rotundity implies strict convexity. The paper is written from a strictly constructive point of view, in which all proofs embody algorithms. MSC: 03F60, 90A06.

This is the first book to combine an introduction to Philosophy as a degree subject with the practical study and assessment skills that the student is likely to need. It begins by helping a student to make an informed choice about which philosophy course to apply for and goes on to introduce the subject via key problems and philosophers. It expertly guides the reader towards philosophical thinking as an activity and offers practical advice for developing techniques specific to the study (...) of philosophy.Features* Gives brief biographies of major philosophers * Provides clear definitions of key terms and guidance on further reading* Includes sample essays and examination questions* Covers time-management and self-motivation skills* Offers tips on making use of contact time with tutors. (shrink)