We give a unified account of some results in the development of Polyadic Inductive Logic in the last decade with particular reference to the Principle of Spectrum Exchangeability, its consequences for Instantial Relevance, Language Invariance and Johnson's Sufficientness Principle, and the corresponding de Finetti style representation theorems.

BACKGROUND: Hallucinations and delusions that complicate Parkinson’s disease could lead to nursing home placement and are linked to increased mortality. Cognitive impairments are typically associated with the presence of hallucinations but there are no data regarding whether such a relationship exists with delusions. OBJECTIVE: We hypothesized that hallucinations would be associated with executive and visuospatial disturbance. An exploratory examination of cognitive correlates of delusions was also completed to address the question of whether they differ from hallucinations. METHODS: 144 PD subjects (...) completed a neuropsychological battery to assess cognition and the SAPS to examine psychosis. Correlational analyses assessed associations between hallucinations and delusions with cognitive domains. RESULTS: 48 subjects reported psychotic symptoms: 25 experienced hallucinations without delusions, 23 had symptoms dominated by delusions. Severity and/or number of hallucination subtypes were significantly correlated with lower scores in language, memory, attention, executive functioning, and visuospatial ability. Correlations with delusions were non-significant. Tests of differences in the size of the correlations between groups revealed a significant relationship between language and visuospatial performance with hallucinations. CONCLUSIONS: Cognitive correlates of hallucinations and delusions appear to be different in PD, suggesting distinct pathogenic mechanisms and possibly anatomical substrates. Hence, delusions may not share the same associations with dementia as hallucinations. Since this is a new finding, further studies will be needed to confirm our results. (shrink)

Virgil, in his description of the establishment of a new city by Aeneas for those Trojans who wished to remain in Sicily, is thinking of the Roman practice of colonial foundation: ‘Meanwhile Aeneas marked out the city with the plough and allocated the houses ’. We may note the personal role of the founder, the ploughing of the ritual first furrow, the organized grants to the settlers and the equality of treatment implied in the use of lot . Virgil was (...) writing at the end of the first century B.C. at a time of great activity in land distribution, but the Romans had been founding colonies from the mid fourth century. Each colony involved the creation of an urban area and the settlement of people on the surrounding agricultural land, and so perpetuated the city state, which was central to ancient life and culture. Indeed a colony was a smaller image of Rome itself. In the early Republic, colonies, either of Latins or of Roman citizens, were established on the periphery of Roman territory, largely for military and strategic reasons. Between 200 and 173 B.C. more than 40,000 may have received plots of land, amounting to about 1,000 square miles of territory. Later, the motives for colonial foundations became more complex, being closely connected with increasing economic and political problems. There can have been few more important aspects in the development of colonies than the need to find land for discharged troops. These in the main were rank and file soldiers who would expect equal shares in land allocations. (shrink)

Virgil, in his description of the establishment of a new city by Aeneas for those Trojans who wished to remain in Sicily, is thinking of the Roman practice of colonial foundation: ‘Meanwhile Aeneas marked out the city with the plough and allocated the houses ’. We may note the personal role of the founder, the ploughing of the ritual first furrow, the organized grants to the settlers and the equality of treatment implied in the use of lot. Virgil was writing (...) at the end of the first century B.C. at a time of great activity in land distribution, but the Romans had been founding colonies from the mid fourth century. Each colony involved the creation of an urban area and the settlement of people on the surrounding agricultural land, and so perpetuated the city state, which was central to ancient life and culture. Indeed a colony was a smaller image of Rome itself. In the early Republic, colonies, either of Latins or of Roman citizens, were established on the periphery of Roman territory, largely for military and strategic reasons. Between 200 and 173 B.C. more than 40,000 may have received plots of land, amounting to about 1,000 square miles of territory. Later, the motives for colonial foundations became more complex, being closely connected with increasing economic and political problems. There can have been few more important aspects in the development of colonies than the need to find land for discharged troops. These in the main were rank and file soldiers who would expect equal shares in land allocations. (shrink)

We investigated how people interpret conditionals and how stable their interpretation is over a long series of trials. Participants were shown the colored patterns on each side of a six-sided die, and were asked how sure they were that a conditional holds of the side landing upwards when the die is randomly thrown. Participants were presented with 71 trials consisting of all combinations of binary dimensions of shape (e.g., circles and squares) and color (e.g., blue and red) painted onto the (...) sides of each die. In two experiments (N1 = 66, N2 = 65), the conditional event was the dominant interpretation, followed by conjunction, and material conditional responses were negligible. In both experiments, the percentage of participants giving a conditional event response increased from around 40% at the beginning of the task to nearly 80% at the end, with most participants shifting from a conjunction interpretation. The shift was moderated by the order of shape and color in each conditional’s antecedent and consequent: participants were more likely to shift if the antecedent referred to a color. In Experiment 2 we collected response times: conditional event interpretations took longer to process than conjunction interpretations (mean difference 500 ms). We discuss implications of our results for mental models theory and probabilistic theories of reasoning. (shrink)

In this article, I develop the point that whereas talent is the basis for desert, talent itself is not meritocratically deserved. It is produced by three processes, none of which are meritocratic: talent is unequally distributed by the rigged lottery of birth, talent is defined in ways that favor some traits over others, and the market for talent is manipulated to maximally extract advantages by those who have more of it. To see how, we require a sociological perspective on economic (...) rent. I argue that talent is a major means through which people seek rent in modern-day capitalism. Talent today is what inherited land was to feudal societies; an unchallenged source of symbolic and economic rewards. Whereas God sanctified the aristocracy’s wealth, contemporary privilege is legitimated by meritocracy. Drawing on the work of Gary Becker, Pierre Bourdieu, and Jerome Karabel, I show how rent-seeking in modern societies has come to rely principally on rent-definition and creation. Inequality is produced by the ways in which talent is defined, institutionalized, and sustained by the moral deservingness we attribute to the accomplishments of talents. Consequently, today’s inequalities are as striking as ever, yet harder to challenge than ever before. (shrink)

This beautifully definitive edition of More's Utopia, the fourth volume in the Yale Edition of the complete works, appears on the four hundred and fiftieth anniversary of the original composition. The latin text used is the one of March 1518 ; but included is a complete list of variant readings from the 1516, 1517, and November 1518 editions. Using a lucid revision of G. C. Richards' translation, Hexter and Surtz provide a wealth of helpful details about the textual, linguistic, historical, (...) and cultural character of Utopia as well as a discussion of it as a work of literary art. The text is followed by a number of interesting illustrations and a lengthy, analytical commentary. More's work gave rise to a host of similar descriptions of imaginary lands but it is Utopia which is still commonly read today. Its relatively down-to-earth quality gives Utopia a certain modern appeal, and needless to say, it is an important work for anyone interested in the ordering of human society.—D. J. B. (shrink)

This beautifully definitive edition of More's Utopia, the fourth volume in the Yale Edition of the complete works, appears on the four hundred and fiftieth anniversary of the original composition. The latin text used is the one of March 1518 ; but included is a complete list of variant readings from the 1516, 1517, and November 1518 editions. Using a lucid revision of G. C. Richards' translation, Hexter and Surtz provide a wealth of helpful details about the textual, linguistic, historical, (...) and cultural character of Utopia as well as a discussion of it as a work of literary art. The text is followed by a number of interesting illustrations and a lengthy, analytical commentary. More's work gave rise to a host of similar descriptions of imaginary lands but it is Utopia which is still commonly read today. Its relatively down-to-earth quality gives Utopia a certain modern appeal, and needless to say, it is an important work for anyone interested in the ordering of human society.—D. J. B. (shrink)

The main purpose of this volume is the admirable one of preparing a series of volumes on the global history of philosophy. While the effort falls far short of what we might have hoped for, it must be judged as a good beginning in this area. The volume begins with a listing of introductory works dealing with the philosophies of major cultures: India, China, Japan, Islam, Russia and Latin America. The difficulties of launching into a study of world philosophy become (...) apparent at this point; the bibliographical categories are a mixture of geographical areas and religio-cultural traditions which overlap land-boundaries. The authors now depart from the geographical-cultural schema by organizing the material along a mixture of historical and topical structures--all taken from the western context. The list of historical segments include: Classical Period, Pan-Hellenistic-Bactrian Period, Early "Medieval" Period, The Great Summas, Late "Medieval" Period, "Renaissance" Period, Transition to the Modern Period, and Modern Period. The book concludes with a section dedicated to works concerning the Scientific Revolution and the Philosophy of International Law. In a pocket on the back cover the reader will find two large fold-outs which present "A Synchronological Chart to the Global History of Philosophy."--J. B. L. (shrink)

When interpreting the meanings of visual features in information visualizations, observers have expectations about how visual features map onto concepts (inferred mappings.) In this study, we examined whether aspects of inferred mappings that have been previously identified for colormap data visualizations generalize to a different type of visualization, Venn diagrams. Venn diagrams offer an interesting test case because empirical evidence about the nature of inferred mappings for colormaps suggests that established conventions for Venn diagrams are counterintuitive. Venn diagrams represent classes (...) using overlapping circles and express logical relationships between those classes by shading out regions to encode the concept of non-existence, or none. We propose that people do not simply expect shading to signify non-existence, but rather they expect regions that appear as holes to signify non-existence (the hole hypothesis.) The appearance of a hole depends on perceptual properties in the diagram in relation to its background. Across three experiments, results supported the hole hypothesis, underscoring the importance of configural processing for interpreting the meanings of visual features in information visualizations. (shrink)

Watershed planning has typically been approached as a technical problem in which water quality and quantity as influenced by the hydrology, topography, soil composition, and land use of a watershed are the significant variables. However, it is the human uses of land and water as resources that stimulate governments to seek planning. For the past decade or more, many efforts have been made to create democratic planning processes, which, it is hoped, will be viewed as legitimate by those the plans (...) regulate. This article uses a case study of the Cache River watershed in southernmost Illinois to analyze the complicated historical and political economic context of a specific watershed planning process that occurred from 1993 through 1995. This article assesses the claims made about the democratic, grass-roots, deliberative nature of the planning process and casts doubt on the legitimacy of its outcomes. It also proposes an alternative form of governance that would be both democratic and capable of generating outcomes viewed as legitimate by most affected parties. (shrink)

Recent influential criticisms attack the reputation of Thomas Harriot by citing the contents of his ethnographic and economic survey, A briefe and true report of the new found land of Virginia, first published in 1588. This interpretation makes Harriot, together with Shakespeare and others, agents of a colonialist project. But profound differences are indicated in the comparison of the relatively unbiased depiction and analysis by Harriot and his artist collaborator John White with the interpretations of America and Americans by some (...) of their contemporaries. A briefe and true report conveys, and John White's drawings support, insight into particular non-European features of the cultural and economic lives of the Algonquian peoples. On the contrary, Captain Arthur Barlowe's Discourse and the illustrations by Theodore de Bry for the 1600 edition of Harriot's book instance romanticizing, stereotyping, and unanalytic condescension very unlike Harriot's and White's. These differences prove the faultiness of the recent assessment. (shrink)

The Sleeping Beauty problem has spawned a debate between “thirders” and “halfers” who draw conflicting conclusions about Sleeping Beauty's credence that a coin lands heads. Our analysis is based on a probability model for what Sleeping Beauty knows at each time during the experiment. We show that conflicting conclusions result from different modeling assumptions that each group makes. Our analysis uses a standard “Bayesian” account of rational belief with conditioning. No special handling is used for self-locating beliefs or centered propositions. (...) We also explore what fair prices Sleeping Beauty computes for gambles that she might be offered during the experiment. (shrink)

The Sleeping Beauty problem has spawned a debate between “Thirders” and “Halfers” who draw conflicting conclusions about Sleeping Beauty’s credence that a coin lands Heads. Our analysis is based on a probability model for what Sleeping Beauty knows at each time during the Experiment. We show that conflicting conclusions result from different modeling assumptions that each group makes. Our analysis uses a standard “Bayesian” account of rational belief with conditioning. No special handling is used for self-locating beliefs or centered propositions. (...) We also explore what fair prices Sleeping Beauty computes for gambles that she might be offered during the Experiment. (shrink)

This lucid and compact book contains a forceful critique of the "wave-particle duality" interpretations of quantum theory, and a unitary particle theory which explains the quantum rules in terms of non-quantal axioms. To speak of a wave-particle duality, says Landé, is to speak of an abstraction and a real thing as if they were on a level of parity; and he takes Born's statistical interpretation of quantum phenomena as evidence that a unitary particle theory is needed. The problem then is (...) to explain why particles obey quantum laws of interference and h-dominated periodicity. Although much of the book assumes knowledge of mathematics and physics, many sections require no scientific background; and in the more technical sections there are frequent summaries which state the arguments and conclusions in a non-mathematical way. An incisive and provocative work which deserves to be widely read.--B. J. H. (shrink)

1 Evidence-based policy requires researchers to provide the answers to ecological questions that are of interest to policy makers. To find out what those questions are in the UK, representatives from 28 organizations involved in policy, together with scientists from 10 academic institutions, were asked to generate a list of questions from their organizations. 2 During a 2-day workshop the initial list of 1003 questions generated from consulting at least 654 policy makers and academics was used as a basis for (...) generating a short list of 100 questions of significant policy relevance. Short-listing was decided on the basis of the preferences of the representatives from the policy-led organizations. 3 The areas covered included most major issues of environmental concern in the UK, including agriculture, marine fisheries, climate change, ecosystem function and land management. 4 The most striking outcome was the preference for general questions rather than narrow ones. The reason is that policy is driven by broad issues rather than specific ones. In contrast, scientists are frequently best equipped to answer specific questions. This means that it may be necessary to extract the underpinning specific question before researchers can proceed. 5 Synthesis and applications. Greater communication between policy makers and scientists is required in order to ensure that applied ecologists are dealing with issues in a way that can feed into policy. It is particularly important that applied ecologists emphasize the generic value of their work wherever possible. (shrink)

This lucid and compact book contains a forceful critique of the "wave-particle duality" interpretations of quantum theory, and a unitary particle theory which explains the quantum rules in terms of non-quantal axioms. To speak of a wave-particle duality, says Landé, is to speak of an abstraction and a real thing as if they were on a level of parity; and he takes Born's statistical interpretation of quantum phenomena as evidence that a unitary particle theory is needed. The problem then is (...) to explain why particles obey quantum laws of interference and h-dominated periodicity. Although much of the book assumes knowledge of mathematics and physics, many sections require no scientific background; and in the more technical sections there are frequent summaries which state the arguments and conclusions in a non-mathematical way. An incisive and provocative work which deserves to be widely read.--B. J. H. (shrink)

Writing in the tradition of Deweyan pragmatism, the author is critical of the transcendent in ethics, and explicitly accuses Niebuhr of making his political ethic a no-man's-land between an antiquarian view of human nature, and man's dependence upon an intrusion of grace at the end. Odegard raises important questions, but his treatment is superficial in many instances, and is directed from a position which is assumed, not defended.--J. E. B.

Herein we examine the theory and practical limits of designing a voluntary incentive scheme to protect endangered species on private land. We consider both an ay-ante scheme, in which a contract to the landholder depends only on what the landholder reports, and an ay-post scheme, in which a contract to the landholder depends on reports from all landowners. Except in special cases, the ex-ante scheme never implements the full information allocation, and can actually set aside too much land. In contrast, (...) expected habitat size under the ex-post scheme is smaller than both the ex-ante and full information allocations. (C) 2001 Elsevier Science (USA). (shrink)

Americans’ excessive consumption of food harms their health and quality of life and also causes direct and indirect environmental degradation, through habitat loss and increased pollution from agricultural fertilizers and pesticides. We show here that reducing food consumption could improve Americans’ health and well-being while facilitating environmental benefits ranging from establishing new national parks and protected areas to allowing more earth-friendly farming and ranching techniques. We conclude by considering various public policy initiatives to lower per capita caloric intake and excessive (...) meat consumption, and to translate this temperate behavior into substantial environmental protection. (shrink)

Sustaining soil fertility is essential to the prosperity of many households in the mid-hills of Nepal, but there are concerns that the breakdown of the traditional linkages between forest, livestock, and cropping systems is adversely affecting fertility. This study used triangulated data from surveys of households, discussion groups, and key informants in 16 wards in eastern and western Nepal to determine the existing practices for soil fertility management, the extent of such practices, and the perception of the direction of changes (...) in soil fertility. The two principal practices for maintaining soil fertility were the application of farmyard manure (FYM) and of chemical fertilizer (mainly urea and diammonium phosphate). Green manuring, in-situ manuring, slicing terrace risers, and burning plant residues are rarely practiced. FYM usage was variable with more generally applied to khet land (average 6053 kg fresh weight manure ha−1) than to bari land (average 4185 kg fresh weight manure ha−1) with manure from goats and poultry preferred above that from cows and buffaloes. Almost all households (98%) apply urea to khet land and 87% to bari land, with 45% applying diammonium phosphate to both types of land. Application rates and timings of applications varied considerably both within and between wards suggesting poor knowledge transfer between the research and farming communities. The benefits of chemical fertilizers in terms of ease of application and transportation in comparison with FYM, were perceived to outweigh the widely reported detrimental hardening of soil associated with their continued usage. Among key informants, FYM applied in conjunction with chemical fertilizer was the most popular amendment, with FYM alone preferred more than chemical fertilizer alone – probably because of the latter’s long-term detrimental effects. Key informant and householder surveys differed in their perception of fertility changes in the last decade probably because of differences in age and site-specific knowledge. All key informants felt that fertility had declined but among households, only about 40% perceived a decline with the remainder about evenly divided between no change and an increase. Householders with small landholdings (< 0.5 ha) were more likely to perceive increasing soil fertility while those with larger landholdings (> 2 ha) were more likely to perceive declining fertility. Perceived changes in soil fertility were not related to food self-sufficiency. The reasons for the slow spread of new technologies within wards and the poor understanding of optimal use of chemical fertilizers in conjunction with improved quality FYM may repay further investigation in terms of sustaining soil fertility in this region. (shrink)

Coastal ecosystems are increasingly dominated by humans. Consequently, the human dimensions of sustainability science have become an integral part of emerging coastal governance and management practices. But if we are to avoid the harsh lessons of land management, coastal decision makers must recognize that humans are one of the more coastally dependent species in the biosphere. Management responses must therefore confront both the temporal urgency and the very real compromises and sacrifices that will be necessary to achieve a sustainable coastal (...) ecosystem, one that is economically feasible, socially just, and ecologically sound. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Frederick J. Streng Book Award:An Interview with Paul Ingram and Sallie KingSallie B. King and Paul O. IngramSallie King and Paul Ingram have been named winners of the 2003 Frederick J. Streng Book Award for their edited collection The Sound of Liberating Truth: Buddhist-Christian Dialogues in Honor of Frederick J. Streng (Curzon, 1999). Sallie King is professor of philosophy and religion at James Madison University in Harrisonburg,Virginia. Paul (...) Ingram is professor of religion at Pacific Lutheran University in Tacoma,Washington. Both are past presidents of the Society for Buddhist-Christian Studies. There is some irony that they have won this award named after Fred Streng, one of the founders of the Society for Buddhist-Christian Studies, for a volume that is a essentially a festschrift honoring the work of Fred Streng. Following is an edited interview with both of the winners.Buddhist-Christian Studies: What made each of you want to put together this collection of essays?Paul Ingram: Before I met Fred at the first "East-West Religions in Encounter" meeting organized by David Chappell in 1980 in Hawai'i, I was well acquainted with his work in history of religions. Fred by this time was recognized as one of the most important scholars in the field, and I deeply admired his work, particularly his book on Nagarjuna. As it turns out, he had read some of my work on Pure Land Buddhism and was as interested in meeting me as I was in meeting him. We became friends and colleagues. Because of our mutual interest in interreligious dialogue in general and in Buddhism in particular, he suggested that we should co-edit a volume of selected papers from the 1980 conference. This volume, Buddhist-Christian Dialogue: Mutual Renewal and Transformation, was subsequentlypublishedby the Universityof Hawai'i Press in 1986 and is still in print.Sallie King: I had long admired Fred's book on Nagarjuna, which uniquely and powerfullyopenedup the religiousmeaningof Nagarjuna'swork.I later metFred through the Society for Buddhist-Christian Studies and discovered that this admirable scholar was also a most admirable human being. We had lengthy, in-depth conversations when our paths crossed at various conferences. After Fred died, David Chappell, who had become the president of the Society for Buddhist-Christian Studies, suggested to Paul and me that we edit a volume of this kind in honor of Fred. Neither Paul nor I hesitated. For my part, I felt such a loss when Fred died that I was very happy [End Page 313] and honored to have this opportunity to make a gesture of respect and gratitude toFred.Besides his obvious scholarly achievements, what were Fred Streng's other gifts?PI: Fred was always generous in his support of colleagues. Many of us in the Society for Buddhist-Christian Studies are where we are professionally because of Fred's celebration of our work in all its diversity. He was one of the founding members of the Society, and he worked long and hard to make it a place for not only scholarly Buddhist-Christian encounter, but also a venue for nonspecialists to engage in Buddhist-Christian dialogue. All of us have been creatively transformed by Fred's work. After Fred's death in 1993, David Chappell invited Sallie and me to co-edit a volume of essays to honor Fred's memory and celebrate his work. We did so gladly and without reservation.SK: Fred was a very balanced person who had seriously engaged with all the important areas of human life. He was profoundly spiritual, seriously concerned about social issues, unfailingly kind and generous to others. Though he was at the top of his field, he remained straightforward and natural and always met even far-junior scholars as equals; he could not have been more encouraging and supportive. His spirituality, his scholarship, his engagement with social issues and his caring for others were all interdependent, mutually constructive of who he was and of his various projects.Were assignments for the book difficult to make?PI: The most difficult problem was selecting who to invite. Sallie and I identified five themes in Fred's scholarship, and we needed... (shrink)

Reasoning under uncertainty, that is, making judgements with only partial knowledge, is a major theme in artificial intelligence. Professor Paris provides here an introduction to the mathematical foundations of the subject. It is suited for readers with some knowledge of undergraduate mathematics but is otherwise self-contained, collecting together the key results on the subject, and formalising within a unified framework the main contemporary approaches and assumptions. The author has concentrated on giving clear mathematical formulations, analyses, justifications and consequences of the (...) main theories about uncertain reasoning, so the book can serve as a textbook for beginners or as a starting point for further basic research into the subject. It will be welcomed by graduate students and research workers in logic, philosophy, and computer science as a textbook for beginners, a starting point for further basic research into the subject, and not least, an account of how mathematics and artificial intelligence can complement and enrich each other. (shrink)

This book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.

J. B. Schneewind's "The Invention of Autonomy" has been hailed as a major interpretation of modern moral thought. Schneewind's narrative, however, elides several serious interpretive issues, particularly in the transition from late medieval to early modern thought. This results in potentially distorted accounts of Thomas Aquinas, Hugo Grotius, and G. W. Leibniz. Since these thinkers play a crucial role in Schneewind's argument, uncertainty over their work calls into question at least some of Schneewind's larger agenda for the history of ethics.

"The Laws", Plato's most lengthy dialogue, has longbeen regarded as the most comprehensive explanation of the possible consequences of a practical application of his philosophy.We might expect the first question Plato ponders to be "What is Law?" Instead, the question posed is "Who is given the credit for laying down your laws?"We are privy to an interaction between a powerfulstatesman and an Athenian philosopher on theisland of Crete. We watch as a plan for a new political order is worked out (...) that embodiesmany of the issues that we still struggle withtoday, such as the status of women, the statusof homosexuals, the family, criminal law, andthe role of religion in a healthy society.We at Timeless Classic Books hope that you enjoy this ancient thought-provoking story that may change the way you think about modern day issues.(Timeless Classic Books). (shrink)

J. Baird Callicott has proposed two second-order principles which he believes can be used to settle conflicts between his land ethic and traditional human morality. The first of these proposes that ethical obligations arising from “more venerable and intimate” communities should take precedence over those arising from “more recently emerged and impersonal” communities, while the second proposes that “stronger” interests should take precedence over “weaker” ones. Callicott’s first second-order principle fails to specify unambiguously which communities’ obligations should take precedence because (...) he has failed to provide a clear description of how we are to identify and compare communities. In order for his second second-order principle to be useful, a good deal more work needs to be done to spell out what is meant by describing certain interests as “stronger” than others, particularly with respect to holistic entities. While the project of fleshing out a description of the strengths of interests for holistic entities may present an interesting and fruitful challenge, the prospects for providing a description of community identification of the sort that Callicott requires are much dimmer. (shrink)

J. Baird Callicott has proposed two second-order principles which he believes can be used to settle conflicts between his land ethic and traditional human morality. The first of these proposes that ethical obligations arising from “more venerable and intimate” communities should take precedence over those arising from “more recently emerged and impersonal” communities, while the second proposes that “stronger” interests should take precedence over “weaker” ones. Callicott’s first second-order principle fails to specify unambiguously which communities’ obligations should take precedence because (...) he has failed to provide a clear description of how we are to identify and compare communities. In order for his second second-order principle to be useful, a good deal more work needs to be done to spell out what is meant by describing certain interests as “stronger” than others, particularly with respect to holistic entities. While the project of fleshing out a description of the strengths of interests for holistic entities may present an interesting and fruitful challenge, the prospects for providing a description of community identification of the sort that Callicott requires are much dimmer. (shrink)

We examine the closure conditions of the probabilistic consequence relation of Hawthorne and Makinson, specifically the outstanding question of completeness in terms of Horn rules, of their proposed (finite) set of rules O. We show that on the contrary no such finite set of Horn rules exists, though we are able to specify an infinite set which is complete.