Boolean-valued models generalize classical two-valued models by allowing arbitrary complete Boolean algebras as value ranges. The goal of my dissertation is to study Boolean-valued models and explore their philosophical and mathematical applications.In Chapter 1, I build a robust theory of first-order Boolean-valued models that parallels the existing theory of two-valued models. I develop essential model-theoretic notions like “Boolean-valuation,” “diagram,” and “elementary diagram,” and prove a series of theorems on Boolean-valued models, including the (strengthened) Soundness and Completeness Theorem, the Löwenheim–Skolem Theorems, (...) the Elementary Chain Theorem, and many more.Chapter 2 gives an example of a philosophical application of Boolean-valued models. I apply Boolean-valued models to the language of mereology to model indeterminacy in the parthood relation. I argue that Boolean-valued semantics is the best degree-theoretic semantics for the language of mereology. In particular, it trumps the well-known alternative—fuzzy-valued semantics. I also show that, contrary to what many have argued, indeterminacy in parthood entails neither indeterminacy in existence nor indeterminacy in identity, though being compatible with both.Chapter 3 (joint work with Bokai Yao) gives an example of a mathematical application of Boolean-valued models. Scott and Solovay famously used Boolean-valued models on set theory to obtain relative consistency results. In Chapter 3, I investigate two ways of extending the Scott–Solovay construction to set theory with urelements. I argue that the standard way of extending the construction faces a serious problem, and offer a new way that is free from the problem.Abstract prepared by Xinhe Wu.E-mail: [email protected]. (shrink)

Erratum to: Found Sci DOI 10.1007/s10699-014-9364-0The author, Kun Wu’s name, affiliation and biography have been incorrectly published in the original article. The correct affiliation and biography are provided below.

The reform of China’s one-child policy allows families to have more children and thus may affect anticipation of intergenerational succession of family businesses and drive family firms to improve their corporate social responsibility (CSR). Using a difference-in-differences design, we find that the reform positively affects the CSR of family firms. We also find that the positive impact is more pronounced for family firms whose owners have fewer children, have no son, and have not yet surpassed reproductive age (older than 50), (...) which confirms the theory that anticipation of intergenerational succession drives CSR in such firms. Moreover, we find that the positive impact is more pronounced for firms that operate in environments where CSR is more strategically important. We validate our findings by showing that the reform prompts investment in value-enhancing CSR and curtails short-termism. This study offers novel evidence that government policies conducive to intergenerational succession in family firms can lead to not only strategic CSR but also to truly ethical corporate behaviour. (shrink)

本书内容按中国美学发展的时代先后编写,从先秦到近现代共分六篇,每一篇包括原文和提要两部分。.

ABSTRACT We show that there is a polynomial over the rational number field corresponding to each propositional formula in a given many-valued logic. To decide whether a propositional formula can be deduced from a finite set of such formulas (deduction problem), we only need to decide whether a polynomial vanishes on an algebraic variety. By using Wu's method, an algorithm for this problem is presented.

While it has been known for several decades that the Āvaśyakacūrṇi of the Śvetāmbara Jaina tradition and the Mūlasarvāstivāda Vinaya of the Buddhist tradition share some common narrative plots or motifs, so far no detailed study has been made to understand the different ways in which parallel narrative material is utilized in the two texts. Through a comparative study of stories of three characters in the Mūlasarvāstivāda Vinaya and their counterparts in the Āvaśyakacūrṇi, this paper demonstrates that the Buddhists and (...) the Jainas who composed or redacted the two texts exploited parallel narrative plots or motifs along different lines and for different purposes. In particular, with regard to Jīvaka, who is widely known among Buddhists as a model of medical skill and religious faith, this paper argues that the fact that Jīvaka is prominently featured in Buddhist literature but finds no parallel in Jaina literature may be explained by the different attitudes of the two religions to medical healing and to the role of secular physicians in general. (shrink)

Anderson and Csima defined a bounded jump operator for bounded-Turing reduction, and studied its basic properties. Anderson et al. constructed a low bounded-high set and conjectured that such sets cannot be computably enumerable. Ng and Yu proved that bounded-high c.e. sets are Turing complete, thus answered the conjecture positively. Wu and Wu showed that bounded-low sets can be superhigh by constructing a Turing complete bounded-low c.e. set. In this paper, we continue the study of the comparison between the bounded-jump and (...) Turing jump. We show that low c.e. sets are not all bounded-low and that incomplete superhigh c.e. sets can be bounded-low. (shrink)

The aim of this paper is to explore the conditions under which generalisation from single case studies, in the sense of making inferences concerning a wider class of phenomena beyond a case, is reasonable. Two sets of conditions, in particular, provide the basis for our consideration of this issue. The first is an exploration of the impressive amount of empirical knowledge that is contained within the theories that are used to make observations, to classify phenomena, and to understand and interpret (...) cases. The second is recognition of the role of a pattern of inference known as abduction, or inference to the best explanation, in drawing conclusions from case studies. It is argued that these two conditions, when applied to the procedures for conducting case studies, can be used to defend, as reasonable, the making of certain provisional generalisations from single cases. An epistemological procedure for testing and further justifying these generalisations, with a particular emphasis on dealing with the problem of confirmation bias, is then discussed and recommended. (shrink)

本卷收入胡适哲学与文化方面的论文、函牍、讲演、札记80余篇。其中包括实验主义、我们对于西洋近代文明的态度等重要文章。所收文章全面反映了胡适哲学思想、学术主张和对于中西文化的态度,对于了解和研究胡适本人 以及现代中国学术史、现代中国启蒙运动等内容。.

BackgroundRecently there have been growing concerns about problematic mobile phone use by adolescent populations. This study aimed to address this concern through a study of severity and correlates of problematic mobile phone use with a sample of Hong Kong adolescents.MethodsData were collected from a sample of adolescents from three local secondary schools using a measuring scale designated for Chinese adolescents. Participants were allocated into groups of “problematic users” and “non-problematic users” based on the number of occurrence of symptoms due to (...) excessive and maladaptive use of mobile phone and possible functional impairments caused by problematic mobile phone use. A group of “at-risk users” was identified. A sample-based examination on distribution of these three groups of users was conducted via frequency counts and percentage calculation. A series of t-test were performed to make comparisons between “problematic” and “non-problematic” groups on selected personality and health related variable. Risk and protective factors were identified via correlational analysis and logistic regression analysis.ResultsUnder a more stringent cut-off criterion of four or more reported symptoms plus one or more reported functional impairments, 22.9% of the adolescents participating in this study could be classified as problematic mobile phone users. However, a more lenient criterion reported a substantially more severe prevalence rate. A new group of “at-risk” adolescents was identified with such a discrepancy of prevalence rate. Gender difference, some risk and protective factors were also identified for developing this technology-related problem.Discussion and ConclusionsAdolescents who are vulnerable to suffer from this technology-related problem deserve more attention from helping professionals. Results of this study throw some insights on how to identify problematic mobile phone user applying a criterion-referenced approach. This study echoes a recent call for adopting a developmental perspective in understanding this problem and conducting research in this area. Anchored on present findings, effective interventions to tackle this rising problem among adolescents are suggested. (shrink)

This study was aimed at examining the impacts of the Sharing economy on the individual and community Quality of Life and wellbeing by looking at their associated influencing factors using Village Savings and Loans Associations as a model of sharing economy in Malawi. An online community-based cross-sectional study design was conducted from November 2020 through January 2021. In the survey, 402 Village Savings and Loans Associations members from the Mzuzu City area participated, recruited using snowball and respondent-driven sampling techniques. The (...) sample size was computed using a single population proportion using the Yamane formula. Descriptive statistics and ordinal logistic regression model techniques were also employed. Additionally, we used the Chi-Square test, two-way ANOVA, and Ordinal regression model to determine statistical associations between socioeconomic data and QOL and wellbeing variables with a 5% level of significance. On the aspect of community wellbeing, the findings of our study indicated that income provided members with options to live a better QOL and wellbeing within the community by either facilitating payment for better education, eating healthier foods, acquiring assets, etc. Further, the absence of discrimination provided a platform for voice, inclusion, and social trust, enhancing freedom of expression. We also found that education facilitated better earnings and knowledge of public health-related issues. As for the contribution to the sharing economy, our study has emphasized the role played by trust in enhancing sharing economy. We recommend and encourage people to join these VSLAs so as to improve their QOL and wellbeing. However, there is a need to replicate the study on a larger scale to validate our study findings for effective policy formulation and implementation geared to improving the overall quality of people’s lives. Based on these findings, we further recommend that authorities reinstate programs like National Strategy for Financial Inclusion 2016–2020 and Savings and Loan Groups Best Practice Guidelines 2016–2017 that could further enhance the future of VSLAs, which are vital for QOL and community wellbeing of the people in developing countries like Malawi. (shrink)

We give a characterization of strongly compact cardinals in terms of Q κ λ. We also prove that weakly normal Q-measures on Q κ λ are ⊂κ-normal.

Say that a nonzero c. e. degree b is a quasi-complement of a c. e. degree a if a ∩ b = 0 and a ∪ b is high. It is well-known that each cappable degree has a high quasi-complement. However, by the existence of the almost deep degrees, there are nonzero cappable degrees having no low quasi-complements. In this paper, we prove that any nonzero cappable degree has a low2 quasi-complement.

Many scholars tend to misunderstand Marx’s theory on the historical path by either taking it as a supra-historical principle or using it in the sense of a subjective external reflection. It is argued in this paper that we should start from the essential foundation of historical materialism to explain Marx’s theory of the historical path, so that its inherent commitment to concretization, which is of essential importance to the whole theory, can be seen clearly. Due to its being separated from (...) Hegelian philosophy, the commitment to concretization within Marx’s theory cannot be actualized through speculative logic. It can only be actualized via the investigation of the life. Such commitment to concretization requires that we should take the changing structure of the mode of production as the axis, and carry out concrete research into all areas of essential difference. In this sense, concretization becomes the “categorical imperative” of Marx’s theory of the historical path. (shrink)

该书收入其论著6种, 主要包括《仪礼奭固》, 《礼器图》, 《周政三图》, 《天文图考》, 《经脉分图》等.

A new three-order piecewise function was used to smoothen the model of Support Vector Machine( SVM) and a Third-order Piecewise Smooth SVM( TPSSVM) was proposed. By theory analyzing, approximation accuracy of the smooth function to the plus function is higher than that of the available. When dealing with the multi-class problem, a coding method of multi-class classification based on one-against-rest was proposed. Principal Component Analysis( PCA) was employed to extract the main features of face image set, and multi-class classification of (...) smooth SVM was used for face recognition. The experimental results on ORL and FERET face databases show that the recognition rate of smooth SVM for multi-class classification is better than the traditional identification methods. (shrink)

In the eighth century, Wu Jing selected exchanges between Emperor Taizong and his ministers that he deemed key to good governance. This collection of dialogues has been used for the education of emperors, political elites and general readers ever since, and is a standard reference work in East Asian political thought. Consisting of ten volumes, subdivided into forty topics, The Essentials of Governance addresses core themes of Chinese thinking about the politics of power, from the body politic, presenting and receiving (...) criticism, recruitment, the education of the imperial clan, political virtues and vices, to cultural policy, agriculture, law, taxation, border policy, and how to avoid disaster and dynastic fall. Presented with introductory commentary that offers insights into its historical context and global reception, this accessible and reliable translation brings together ten scholars of Chinese intellectual history to offer a nuanced edition that preserves the organisation, tone and flow of the original. (shrink)

In this rare firsthand account of an individual's pursuit of sagehood, the early Ming dynasty scholar and teacher Wu Yubi chronicles his progress and his setbacks, as he strives to integrate the Neo-Confucian practices of self-examination and self-cultivation into everyday life. In more than three hundred entries, spanning much of his adult life, Wu paints a vivid picture, not only of the life of the mind, but also of the life of a teacher of modest means, struggling to make ends (...) meet in a rural community. This volume features M. Theresa Kelleher's superb translation of Wu's journal, along with translations of more than a dozen letters from his personal correspondence. A general Introduction discusses Neo-Confucianism and the Ming dynasty, and includes biographical information that puts the main work in context. A substantial commentary on the journal discusses the obstacles and supports Wu encounters in pursuit of his goal, the conflict between discipline and restraint of the self and the nurturing and expanding of the self, Wu's successes and failures, and Wu’s role as a teacher. Also included are a map of the Ming dynasty, a pronunciation guide, a chronology of Chinese dynasties, a glossary of names, a glossary of book titles, and suggestions for further reading. (shrink)