Equality and Monodic First-Order Temporal Logic

It has been shown recently that monodic first-order temporal logic without functional symbols but with equality is incomplete, i.e., the set of the valid formulae of this logic is not recursively enumerable. In this paper we show that an even simpler fragment consisting of monodic monadic two-variable formulae is not recursively enumerable.     

论西方主流正义概念发展中的嬗变与综合(上)

在西方思想中,正义概念自产生以来历经了许多演变。从希腊神话、梭伦、柏拉图、亚里士多德一系的主流希腊思想,接通中世纪基督教的良心观念,经注入自然法的启蒙观念,汇合为自由主义的体系,并在此母体上吸收社会主义思想的部分影响,这构成了西方正义概念迄今发展的主脉。许多思想与观念都对正义的概念发生深刻影响。它的种种涵义是从它产生以来在整个西方历史中逐步增添、发展、补充进去的。在这些历史的嬗变中也不断产生新的综合形式。大致地说,在它产生于希腊思想之后,在基督教教义、自然法理论、近现代自由主义与社会主义的观念基础上都产生着新的综合。罗尔斯公平的正义的理论是西方正义概念在当代的一个最重要的综合。     

Egalitarians,sufficientarians, and mathematicians: a critical notice of Harry Frankfurt’s On Inequality

This critical notice provides an overview of Harry Frankfurt’s On Inequality and assesses whether Frankfurt is right to argue that equality is merely formal and empty. I counter-argue that egalitarianism, properly tweaked and circumscribed, can be defended against Frankfurt’s repudiation. After surveying the main arguments in Frankfurt’s book, I argue that whatever plausibility the ‘doctrine of sufficiency’ defended by Frankfurt may have, it does not strike a fatal blow against egalitarianism. There is nothing in egalitarianism that forbids acceptance of the moral platitude expressed in sufficientarianism's positive thesis, (viz., it is morally important that everyone have enough). Nor is there anything in egalitarianism as such that makes it impossible to recognize the banal truth that there are many important things besides equality, and that many dimensions of human affairs are improperly appraised from a relational or comparative point of view. The fact that a relational or comparative point of view is sometimes out of place, however, surely does not mean that it always is. I conclude with the suggestion that egalitarianism is most compelling when it is understood as a normative conception of social relations (rather than, as Frankfurt seems to assume throughout his book, a thesis about the equal distribution of something) and thus presides over precisely those aspects of human affairs for which that relational or comparative point of view is germane.     

Criteria of Justice: Desert,Needs and Equality

The conception of social justice as equality is defended in this paper by examining what may appear to be two inegalitarian conceptions of justice, as distribution according to desert and as distribution according to need. It is argued that claims of just entitlement arise within a context of reciprocal co-operation for mutual benefit. Within such a context there are special cases where it can be said that those who contribute more deserve more, and that those who need more should get more, but those claims themselves presuppose a norm of equal contribution and equal benefit. This revised version was published online in August 2006 with corrections to the Cover Date.     

Equality: A Continuing Dialogue

We reply to discussions of Equality: From Theory to Action by Harry Brighouse, Joanne Conaghan, Cillian McBride and Stuart White. We find many of their points helpful and treat them as a useful contribution to a continuing dialogue on egalitarianism.     

An Egalitarian Plateau? Challenging the Importance of Ronald Dworkin’s Abstract Egalitarian Rights

Ronald Dworkin’s work on the topic of equality over the past twenty-five years or so has been enormously influential, generating a great deal of debate about equality both as a practical aim and as a theoretical ideal. The present article attempts to assess the importance of one particular aspect of this work. Dworkin claims that the acceptance of abstract egalitarian rights to equal concern and respect can be thought to provide a kind of plateau in political argument, accommodating as it does a number of well-known ethical theories of social arrangement from utilitarianism to libertarianism. The article explores the moral foundations of these egalitarian rights and critically examines five specific reasons for supposing they matter in political debate. It is argued that though these reasons are perhaps less constructive than they might be reasonably expected to be, there is another more fundamental question we can ask about the scope of egalitarian rights the answer to which might ultimately help to explain their fundamental nature and importance. That question is: equality among whom?     

公共哲学的探索

The more diverse cultures and values a country perceives to be “normal” even “just”, the more it needs to search for a public philosophy. Having developed only recently, China, which is speedily progressing towards a market economy, can be considered this kind of country. This article takes Daniel Bell’s concept of modern society and public household as the basis for expatiating on some chief problems and the ways to solve them. It pays special attention to investigating the public ethic while probing public philosophy, and it argues that the public ethic is an ethic that deals with public affairs in the public realm, especially the social political realm; with respect to all people involved, it is a common ethic or an ethic with openness. It is also an ethic that appeals to public opinion and public reason, and tries to find consensus from the demands of different values. Furthermore, because it refers to fundamental public benefits, it has to be a normative ethic of universalism and of baseline holders. Translated by Su Jing from Zhexue Dongtai 哲学动态 (Philosophical Trends), 2005, (8): 3–8     

西方社会价值取向的研究历程与发展趋势

作为一种相对稳定的人格特质,社会价值取向指个体对于自己和他人结果分配的特定偏好。西方社会价值取向的研究经历了从双维模型到整合模型的发展。这些研究证实了实验室情境以及现实情境下社会价值取向对个体的行为决策和社会认知的影响。人际取向命题的提出是该领域的最新理论进展,情境因素和平等取向在未来研究中将得到更多的关注     

Mood—Creativity Relationship in Groups: The Role of Equality in Idea Contribution in Temporal Mood Effects

As people working in groups might fare better in solving complex problems than those working alone (e.g., Laughlin, Hatch, Silver, & Boh, Journal of Personality and Social Psychology, 90 , 2006 and 644), organizations have increasingly assigned creative projects to groups. Group members contribute their collective efforts over time until the creative project has come to fruition. Although mood is identified as an important antecedent to creativity, little is known about the temporal pattern of how group mood enhances or inhibits group creativity, as well as the underpinning group process that explains the mood—creativity link in groups. We set out to address these questions by taking a within-group approach to study the temporal trends of how group mood precedes group creativity and to examine idea contribution equality (ICE) as a mediating group process. We conducted a three-wave longitudinal study among student workgroups tasked to complete a creativity project over a 1-month span. Evidence showed that positive mood is positively associated with concurrent ICE and negative mood is negatively associated with lagged ICE. Furthermore, a mediation model showed that negative mood eventually hampered expert-rated group creative performance by reducing ICE over time. These findings add new knowledge to the temporal mood—creativity relation within the group context.