In this paper we show that the membership problem for second order non-linear Abstract Categorial Grammars is decidable. A consequence of that result is that Montague-like semantics yield to a decidable text generation problem. Furthermore the proof we propose is based on a new tool, Higher Order Intersection Signatures, which grasps statically dynamic properties of λ-terms and presents an interest in its own.

Organizational membership seems to be linked to a more participatory and informed political culture, to foster electoral participation, and to promote positive feelings toward democracy. More recently, the social capital and associative democracy debates have introduced new arguments about the positive effects of associational involvement. However, little attention has been paid to the problems of measuring associational involvement and to their consequences for our theories. This article discusses the various problems of validity and reliability of our measurements (...) of associational membership. It is shown that different questionnaire formats produce substantially different results. The article also addresses the issue of measurement errors and emphasizes the problems they introduce when doing cross-national comparisons. (shrink)

Natural kinds are often contrasted with other kinds of scientific kinds, especially functional kinds, because of a presumed categorical difference in explanatory value: supposedly, natural kinds can ground explanations, while other kinds of kinds cannot. I argue against this view of natural kinds by examining a particular type of explanation—mechanistic explanation—and showing that functional kinds do the same work there as traditionally recognized natural kinds are supposed to do in “standard” scientific explanations. Breaking down this categorical distinction between traditional natural (...) kinds and other kinds of kinds, I argue, delivers two goods: It provides us with a view of natural kindhood that does justice to the epistemic roles of kinds in scientific explanations. And it allows us to solve a problem that HPC theory, currently one of the more popular accounts of natural kindhood, confronts. (shrink)

Natural kinds are often contrasted with other kinds of scientific kinds, especially functional kinds, because of a presumed categorical difference in explanatory value: supposedly, natural kinds can ground explanations, while other kinds of kinds cannot. I argue against this view of natural kinds by examining a particular type of explanation—mechanistic explanation—and showing that functional kinds do the same work there as traditionally recognized natural kinds are supposed to do in “standard” scientific explanations. Breaking down this categorical distinction between traditional natural (...) kinds and other kinds of kinds, I argue, delivers two goods: It provides us with a view of natural kindhood that does justice to the epistemic roles of kinds in scientific explanations. And it allows us to solve a problem that HPC theory, currently one of the more popular accounts of natural kindhood, confronts. (shrink)

Professor Quine in recent articles has raised an old question, an ontological one, concerning the status of universals. It is interesting to note that the same positions recur in symbolic logic that have appeared so often in the past in less exact language. There can be little doubt that the question he raises is crucial; and if the issue is not yet settled, there is at least some hope that it may be clarified. Propositions are required to make propositions clear.

What constitutes an adequate basis for feminist consciousness? What values and concerns are feminists to bring to bear in challenging present standards of well-being and articulating alternative visions of collective life? This essay takes a close and critical look at these questions as they are addressed in the work of political theorist Jean Elshtain. An outspoken defender of "pro-family feminism," Elshtain has urged contemporary feminists to reclaim the "female subject" within the private sphere. Enormous problems attend Elshtain's counsel and (...) these have as much to do with the political implications of her argument as with her reading of the Sophoclean tragedy Antigone. With an eye towards foregrounding what some of these problems are, this essay elaborates an alternative reading of Sophocles' Antigone and moves from that exposition to an examination of why it is that Elshtain's claims and conclusions are politically unsound and unsustainable. (shrink)

Some claim slavery did not harm the descendants of slaves since, without slavery, its descendants would never have been born and a life worth living, even one including the subsequent harms of past slavery, is preferable to never having been born at all. This creates a classic puzzle known as the non-identity argument, applied to reject the validity of claims for historic justice based on harms to descendants of victims of historic wrongs: since descendants are never harmed by historic wrongs, (...) they have no right to rectification. This conclusion is unintuitive. This article explains the nature of harm involved in historic injustice, overcoming the hurdle the non-identity argument poses to historic justice claims. Historic injustice and the harms it generates are best understood as group harms. Claims for historic justice can be grounded in harms currently living individuals suffer as a function of the harms their group or community currently suffers as a consequence of historic wrongs. One form of harm, constitutive harm, differs from the aggregative account of harm assumed by the non-identity argument and is immune to it. It is the type of harm people suffer as members of certain historically wronged groups and communities. Therefore, the constitutive harm people suffer in cases of historic injustice may serve as a basis for justifying claims for historic justice. (shrink)

In the literature on refugeehood in political theory, there has been a recent turn towards what have been called “state system legitimacy” views. These views derive an account of states’ obligations to refugees from a broader picture of the conditions for international legitimacy. This paper seeks to develop the state system legitimacy view of refugeehood by subjecting the most developed version of it—the account developed by David Owen—to critical scrutiny. We diagnose an ambiguity in Owen’s theory of refugeehood, in the (...) concept of political membership, and unpack the implications of this ambiguity for state system legitimacy views. First, we reconstruct the key aspects of Owen’s account of refugeehood and show how it represents an advance over competing theories. Then we discuss the methodological underpinnings of Owen’s account, showing the constraints and opportunities faced by state system legitimacy views. Next, we raise some problems for the conceptual distinctions that Owen develops between different types of refugee protection: asylum, sanctuary, and refuge. The underlying feature that leads to these problems is an ambiguity in the concept of political membership, which is at the core of Owen’s view of refugeehood. Finally, we distinguish two interpretations of political membership in the institution of refugeehood and chart out some possible ways forward for state system legitimacy views. The critique developed here is a sympathetic one, aimed at the further development of state system legitimacy views. (shrink)

Justifications of group-differentiated rights commonly overlook a crucial practical consideration: if rights are to be allocated on the basis of group membership, how should we determine which individuals belong to which group? Assuming that social identities are fixed and transparent runs the risk of creating further injustices, whilst acknowledging that social groups are porous and heterogeneous runs the risk of rendering group-differentiated rights impracticable. In this paper, I develop a schema for determining group membership which avoids both horns (...) of this dilemma. (shrink)

This paper addresses theoretical problems arising from the vagueness of language terms, and intuitions of the vagueness of the concepts to which they refer. It is argued that the central intuitions of prototype theory are sufficient to account for both typicality phenomena and psychological intuitions about degrees of membership in vaguely defined classes. The first section explains the importance of the relation between degrees of membership and typicality (or goodness of example) in conceptual categorization. The second and (...) third section address arguments advanced by Osherson and Smith (1997), and Kamp and Partee (1995), that the two notions of degree of membership and typicality must relate to fundamentally different aspects of conceptual representations. A version of prototype theory—the Threshold Model—is proposed to counter these arguments and three possible solutions to the problems of logical selfcontradiction and tautology for vague categorizations are outlined. In the final section graded membership is related to the social construction of conceptual boundaries maintained through language use. (shrink)

In this study caring is shown to be a membershipbound activity to kin and gender categories with strong moral connotations. Being a daughter or being a son are good enough reasons for becoming a caregiver, more so for women than for men. Caregivers were interviewed within the research project The role of women in family care of disabled elderly conducted by the Social and Economic Research Department of INRCA, Ancona, Italy. Transcripts of the interviews were analyzed through a detailed discourse (...) analysis within an ethnomethodological framework. Interview data are treated as interactional encounters that occasion members to display relevant aspects of their identities and morally adequate images of being a caregiver. In the interview interaction, interlocutors display an orientation towards the production of a moral order in which duty and responsibilities are allocated on the basis of gender distinction. Males are generally described as not being responsible for caring tasks, except for situations in which females are absent or sick, that is, for serious reasons. Caregivers'' perception of time dedicated to caring is pervasive. Most caregivers said it occupied all their time, but gender differences were noticeable. Caring tasks are recognized as gender specific practices, thus failing to carry out these tasks is morally sanctionable when women are involved, but not so for men. Many caregivers described caring for older relatives as an intense source of stress, involving serious physical and psychological problems. The study on moral and identity issues related to caregiving highlights endangering constructions of caring. (shrink)

The problem is addressed of establishing the satisfiability of prenex formulas involving a single universal quantifier, in diversified axiomatic set theories. A rather general decision method for solving this problem is illustrated through the treatment of membership theories of increasing strength, ending with a subtheory of Zermelo-Fraenkel which is already complete with respect to the ∀*∀ class of sentences. NP-hardness and NP-completeness results concerning the problems under study are achieved and a technique for restricting the universal quantifier is (...) presented. (shrink)

We consider the problem of producing an impure public good in various jurisdictions formed through the strategic decisions of agents. Our environment inherits two well-known problems: Under individual decisions, there is a tension between stability and efficiency; Under coalitional decisions, stable jurisdiction structures may fail to exist. The solution, we propose is the use of membership property rights: When a move among jurisdictions is subject to the approval of the agents whom it affects, coalitionally stable jurisdiction structures coincide (...) with those which are efficient. (shrink)

In this commentary, I focus on several problems that the authors' understanding of group identity raises: the legality of avoiding background diversity, the problem of effectively unshareable knowledge, the practical quality of some outcomes arrived at by groups with homogeneous backgrounds, and moral issues about fairness. I note also that much recent research challenges the view that background diversity is more likely to be a detriment than a benefit.

This paper looks at recent efforts within the Cherokee Nation of Oklahoma to expel descendants of the freedmen, persons of African descent held as slaves until their emancipation and subsequent adoption as tribal citizens according to the terms of an 1866 treaty. The unavoidable racial dimensions of this controversy lead me to examine it as an example of the internal minorities problem, i.e., the problem of minorities within minority cultures, familiar from the literature on liberal multiculturalism. I argue that while (...) no single approach to the internal minorities problem is fully adequate for resolving the controversy, the balance of reasons drawn from these approaches shows expulsion of the freedmen descendants to be unjust. Furthermore, in contrast to leading theoretical approaches, a deliberative approach to multiculturalism can best account for the need to encourage critical public dialogue about underlying notions of blood, race and Cherokee identity. (shrink)

This paper looks at recent efforts within the Cherokee Nation of Oklahoma to expel descendants of the freedmen, persons of African descent held as slaves until their emancipation and subsequent adoption as tribal citizens according to the terms of an 1866 treaty. The unavoidable racial dimensions of this controversy lead me to examine it as an example of the internal minorities problem, i.e., the problem of minorities within minority cultures, familiar from the literature on liberal multiculturalism. I argue that while (...) no single approach to the internal minorities problem is fully adequate for resolving the controversy, the balance of reasons drawn from these approaches shows expulsion of the freedmen descendants to be unjust. Furthermore, in contrast to leading theoretical approaches, a deliberative approach to multiculturalism can best account for the need to encourage critical public dialogue about underlying notions of blood, race and Cherokee identity. (shrink)

We investigate the family of concepts that an agent comes to know through a set of defining features, and examine the role played by these features in the process of categorization. In a qualitative framework, categorial membership is evaluated through an order relation among the objects at hand, which translates the fact that an object may fall more than another under a given concept. For concepts defined by their features, this global membership order depends on the degree with (...) which each feature applies to the objects of the universe. The passage from these individual membership degrees to a global membership order poses a problem analogous to vote aggregation in social choice theory. This similarity leads to an original solution that is particularly well-adapted to the framework of cognitive psychology. The resulting membership order extends to compound concepts, and provides a good description of the guppy paradox and the conjunction effect. (shrink)

The question of why group-differentiated rights might be a requirement of justice has been a central focus of identity politics in recent decades. I attempt to bring some clarity to this discussion by proposing a typology to track the various ways in which individuals can be harmed or benefited as a consequence of their membership in social groups. It is the well-being of individuals that group-differentiated rights should be understood as protecting, and so clarity on the relationship between group (...) membership and well-being is vital. One of the problems with the way in which such justifications have often been formulated in the past has been that they inadvertently position the group as a handicap to be overcome, rather than a value to be protected. I seek to overcome this limitation by clearly specifying the circumstances under which group membership is a liability, and the circumstances under which it has value. While this distinction is important, in both cases there is a relevant interest at stake, and thus the groundwork can be laid for a defence of group-differentiated rights. (shrink)

Theories of social justice are necessarily abstract, reaching beyond the particular and the immediate to the general and the timeless. Yet such theories, addressing the world and its problems, must respond to the real and changing dilemmas of the day. A brilliant work of practical philosophy, Frontiers of Justice is dedicated to this proposition. Taking up three urgent problems of social justice neglected by current theories and thus harder to tackle in practical terms and everyday life, Martha Nussbaum (...) seeks a theory of social justice that can guide us to a richer, more responsive approach to social cooperation. The idea of the social contract--especially as developed in the work of John Rawls--is one of the most powerful approaches to social justice in the Western tradition. But as Nussbaum demonstrates, even Rawls's theory, suggesting a contract for mutual advantage among approximate equals, cannot address questions of social justice posed by unequal parties. How, for instance, can we extend the equal rights of citizenship--education, health care, political rights and liberties--to those with physical and mental disabilities? How can we extend justice and dignified life conditions to all citizens of the world? And how, finally, can we bring our treatment of nonhuman animals into our notions of social justice? Exploring the limitations of the social contract in these three areas, Nussbaum devises an alternative theory based on the idea of capabilities. She helps us to think more clearly about the purposes of political cooperation and the nature of political principles--and to look to a future of greater justice for all. (shrink)

In April 2015, an international team of researchers announced the measurement, for the first time, of the first ionization energy of lawrencium, a superheavy element of atomic number 103. The experimental result, published in the prestigious scientific journal Nature, led to the reopening of a long-standing debate that concerns the elements that should be part of group 3 of the periodic table. The aim of this paper is to introduce a new line of argumentation to elucidate this problem.

This article addresses two central topics in normative debates on transnational citizenship: the inclusion of resident non-citizens and of non-resident citizens within the demos. Through a critical review of the social membership (Carens, Rubio-Marin) and stakeholder (Baubock) principles, it identifies two problems within these debates. The first is the antinomy of incorporation, namely, the point that there are compelling arguments both for the mandatory naturalization of permanent residents and for making naturalization a voluntary process. The second is the (...) arbitrary demos problem and concerns who determines whether expatriate voting rights are granted (and on what terms). The argument developed provides a way of dissolving the first problem (and defending the proposed solution against possible objections) and resolving the second problem. In doing so it provides a defensible normative basis for the political theory of transnational citizenship. (shrink)

Linear logic, introduced by Girard, is a refinement of classical logic with a natural, intrinsic accounting of resources. This accounting is made possible by removing the ‘structural’ rules of contraction and weakening, adding a modal operator and adding finer versions of the propositional connectives. Linear logic has fundamental logical interest and applications to computer science, particularly to Petri nets, concurrency, storage allocation, garbage collection and the control structure of logic programs. In addition, there is a direct correspondence between polynomial-time computation (...) and proof normalization in a bounded form of linear logic. In this paper we show that unlike most other propositional logics, full propositional linear logic is undecidable. Further, we prove that without the modal storage operator, which indicates unboundedness of resources, the decision problem becomes PSPACE-complete. We also establish membership in NP for the multiplicative fragment, NP-completeness for the multiplicative fragment extended with unrestricted weakening, and undecidability for fragments of noncommutative propositional linear logic. (shrink)

Despite decades of theorising and empirical research, the problems of corporate governance seem intractable, particularly the relationships between investors and companies. The thought experiment in this paper asks us to look at the problem through a fresh lens. It draws on the quaint British legal custom of calling shareholders “members”, and then uses the political philosopher Michael Walzer’s idea of membership in states, clubs, neighbourhoods, and families to draw lessons for the corporate world. This paper suggests that seeing (...) how Walzer conceives “strangers” in a polity, with fewer rights but a path to membership, lets us rethink shareholder rights as something to be earned, through engagement and commitment, that is, through stewardship. Rethinking what membership of a company might mean points to a pragmatic escape from short-termism without institutional reform. (shrink)

In this paper we propose a multi-criteria model based on the fuzzy preferences approach which can be implemented in the prenegotiation phase to evaluate the negotiations packages. The applicability of some multi-criteria ranking methods were discussed for building a scoring function for negotiation packages. The first one is Simple Additive Weighting technique which determines the sum of the partial satisfactions from each negotiation issue and aggregate them using the issue weights. The other one is Distance Based Methods, with its extension (...) based on the distances to ideal or anti-ideal package, i.e. the TOPSIS procedure. In our approach the negotiator's preferences over the issues are represented by fuzzy membership functions and next a selected multi-criteria decision making method is adopted to determine the global rating of each package. The membership functions are used here as the equivalents of utility functions spread over the negotiation issues, which let us compare different type of data. One of the key advantages of the approach proposed is its usefulness for building a general scoring function in the ill-structured negotiation problem, namely the situation in which the problem itself as well as the negotiators preferences cannot be precisely defined, the available information is uncertain, subjective and vague. Secondly, all proposed variants of scoring functions produce consistent rankings, even though the new packages are added and do not result in rank reversal. (shrink)

Few studies of gangs have explored both ethnic and gender variations in the experience of gang membership. Based on an analysis of interviews with 48 youth from a number of ethnic gangs in Hawaii, this article explores boys' and girls' reasons for joining gangs. The results suggest that although gang members face common problems, they deal with these in ways that are uniquely informed by gender and ethnicity. The interviews also confirm that extensive concern about violent criminal activities (...) in boys' gangs has distracted researchers from exploring the wide range of activities and experiences gangs provide their members. Girls and boys growing up in poor and violent neighborhoods turn to the gangs for many reasons, and the gangs themselves take on a variety of forms in response to the diverse challenges facing their members. Most important, the interviews reveal that girls and boys, even those in the same ethnic groups, inhabit worlds that are heavily influenced by gender. As a result, male and female gangs tend to provide different sets of experiences, skill, and opportunities to their members. (shrink)

The precondition of any feminist politics – a usable category of ‘woman’ – has proved to be difficult to construct, even proposed to be impossible, given the ‘problem of exclusion’. This is the inevitable exclusion of at least some women, as their lives or experiences do not fit into the necessary and sufficient condition(s) that denotes group membership. In this paper, I propose that the problem of exclusion arises not because of inappropriate category membership criteria, but because of (...) the presumption that categories can only be organised by identity relations or shared properties among their members. This criterion of sameness as well as the characterisation of this exclusion as essentialism attests to a metaphysics that is not conducive to resistance and liberatory projects. Following a strain of hybrid thinking in feminist and post-colonial theory, I outline an alternative pluralist logic that confronts oppressive binaries that impede theory work in gender, sexuality, and race theory, and limit political action and resistance. The problem of exclusion is neither irresolvable nor is it essentialism. Instead it is a denial of subjectivity due to pseudodualistic self/Other dichotomies that can be resisted by adopting a new categorial logic. While this paper focuses on the specific problem of formulating a category of ‘woman’, it has implications for other areas of gender, critical race, and postcolonial theory. Rather than working toward an inclusive category founded on sameness, theorists need to develop independent and positive categories grounded in difference. Our current categorial logic does not permit such a project, and therefore a new metaphysics must be adopted. (shrink)

There has been much discussion recently about the scope and limits of purely symbolic models of the mind and about the proper role of connectionism in cognitive modeling. This paper describes the symbol grounding problem : How can the semantic interpretation of a formal symbol system be made intrinsic to the system, rather than just parasitic on the meanings in our heads? How can the meanings of the meaningless symbol tokens, manipulated solely on the basis of their shapes, be grounded (...) in anything but other meaningless symbols? The problem is analogous to trying to learn Chinese from a Chinese/Chinese dictionary alone. A candidate solution is sketched: Symbolic representations must be grounded bottom-up in nonsymbolic representations of two kinds: iconic representations, which are analogs of the proximal sensory projections of distal objects and events, and categorical representations, which are learned and innate feature-detectors that pick out the invariant features of object and event categories from their sensory projections. Elementary symbols are the names of these object and event categories, assigned on the basis of their categorical representations. Higher-order symbolic representations, grounded in these elementary symbols, consist of symbol strings describing category membership relations. Connectionism is one natural candidate for the mechanism that learns the invariant features underlying categorical representations, thereby connecting names to the proximal projections of the distal objects they stand for. In this way connectionism can be seen as a complementary component in a hybrid nonsymbolic/symbolic model of the mind, rather than a rival to purely symbolic modeling. Such a hybrid model would not have an autonomous symbolic module, however; the symbolic functions would emerge as an intrinsically dedicated symbol system as a consequence of the bottom-up grounding of categories ' names in their sensory representations. Symbol manipulation would be governed not just by the arbitrary shapes of the symbol tokens, but by the nonarbitrary shapes of the icons and category invariants in which they are grounded. (shrink)

Young people are seriously under-represented in both political parties and trade unions. I argue that a dependent conception of democracy interested in substantive equality, not merely formal equality, would support addressing this problem through descriptive representation. The essay begins by considering the requirements of democracy, and whether these can support a case for descriptive representation. Although descriptive representation entails democratic costs, there is a contingent case for group representation that is consistent with the aims of democracy. Young people, moreover, satisfy (...) this case in terms of membership of political parties – but less so in the case of trade unions. Finally, the essay considers practical methods for improving young people’s representation in these. (shrink)

Young people are seriously under-represented in both political parties and trade unions. I argue that a dependent conception of democracy interested in substantive equality, not merely formal equality, would support addressing this problem through descriptive representation. The essay begins by considering the requirements of democracy, and whether these can support a case for descriptive representation. Although descriptive representation entails democratic costs, there is a contingent case for group representation that is consistent with the aims of democracy. Young people, moreover, satisfy (...) this case in terms of membership of political parties – but less so in the case of trade unions. Finally, the essay considers practical methods for improving young people’s representation in these. (shrink)

The view that species are individuals, as developed by Ghiselinand Hull, has been touted as explaining the role of type specimens intaxonomy. The kinship of this explanation with the Kripke-Putnam theoryof names has long been recognized. In light of this kinship, however,Hull's account of type specimens can be seen to entail two relatedinscrutability problems – unreasonable limits placed on the natureand extent of biological knowledge. An appreciation for these problemsinvites us to consider the proper relation between metaphysical andepistemological inquires (...) in the philosophy of science. (shrink)

Thomas Aquinas embraces a controversial claim about the way in which parts of a substance depend on the substance’s substantial form. On his metaphysics, a ‘substantial form’ is not merely a relation among already existing things, in virtue of which (for example) the arrangement or configuration of those things would count as a substance. The substantial form is rather responsible for the identity or nature of the parts of the substance such a form constitutes. Aquinas’ controversial claim can be roughly (...) put as the view that things are members of their kind in virtue of their substantial form. To put it simply, Aquinas’ claim results in the implication that, every time the xs come to compose a y, those xs have to undergo a change in kind membership. -/- This has been called the “homonymy principle,” and it follows from Aquinas’ view of substantial forms, and specifically from the position that substantial forms inform prime matter, rather than substance-parts. The aim of this paper will be to defend that the Thomistic claim that substantial forms account for the determinate actuality of every part of a substance is plausible and coherent. After defending the Thomistic account, I propose that approaching problems of material composition as a Thomist has a significant, oft-overlooked advantage of involving a thorough-going naturalistic methodology that resolves such problems by appeal to empirical considerations. (shrink)

Frontiers of Justice: Disability, Nationality, Species Membership, by Martha Nussbaum, Harvard University Press, 2006. How should we measure human development? The most popular method used to be to focus on wealth and income, as when international development agencies rank countries according to their per capita gross domestic product. Critics, however, have long noted shortcomings with this approach. Consider for example a wealthy person in a wheelchair: her problem is not a financial one, but a lack of access to public (...) spaces. Even if she were to hire porters to carry her in and out of stores and libraries, that would not really address her situation. There is a basic sense of dignity and self-respect that comes with being able to move around on one’s own. Even for a disabled millionaire, that will only be possible when public buildings are wheelchair accessible. To fully grasp what the handicapped need, we have to look beyond purely economic measures of well-being, and take into account the actual capabilities people can exercise in their daily lives. The example of the well-off person in a wheelchair illustrates what Martha Nussbaum calls the capabilities approach to human development. It was first pioneered in economics by Amartya Sen (who came up with the wheelchair example), and Nussbaum has for years been associated with a more philosophical variation, which uses the idea of capabilities to outline basic political principles. In Frontiers of Justice: Disability, Nationality, Species Membership Nussbaum takes this project even further, and applies the capabilities approach to issues of justice involving not only the disabled and the global poor, but animals as well.Yet for a philosophy called the capabilities approach, it is surprising how little theoretical work capabilities do in Nussbaum’s overall account. (shrink)

The book under review treats sociology as a science that identifies and reconceptualizes problems already defined by others. Such definitions are viewed to be dependent on conditions that the book calls “membership orders”. The book argues that the sociological observer should look for and observe from the boundaries that keep “members” and “non-members”, along with their corresponding views of problems, apart. The review essay approaches the book with the dual question, “Who describes the reality in which it (...) is determined that social situations are treated as problematic by those involved?” And “Who determines whose problem is the problem considered relevant in each case?” The essay discusses the answers given by the authors to these questions with the help of their conceptualization, data, and object constitution. Similarities and differences are highlighted in comparison with Luhmann’s theory. For illustration purposes, the authors’ theory is applied to law. (shrink)

Fifty years ago, on 12 September, 1963, the association agreement between the European Economic Community (EEC) and Turkey was signed in Ankara. However, in contrast to many other countries who applied later on, Turkey has not yet become a member of the EU. Nevertheless, Turkey’s candidacy to join the EU is still one of the most considerable and controversial topics within the European political arena. Within the accession negotiations, apart from human rights and the Kurdish and the Cypriot issues, one (...) of the greatest challenges to Turkey’s successful candidacy is the issue of respect for and protection of minorities. It might indeed represent an unsolvable problem, which will ultimately block Turkey joining the EU. Neither the EU nor Turkey has really come to terms or dealt with what the EU sees as an “unsatisfactory” protection of minorities in Turkey. What lies at the root of this disagreement is what the term “minority” actually means. Due to Turkey’s own nation state concept as being a united and undivided country and to the terms of the Treaty of Lausanne signed in 1923, which defined Turkey as a nation, the country only recognises non-Muslim minorities. Moreover, contrary to the wording of the minority protection clauses in the Treaty of Lausanne, Turkey restricts its recognition of non-Muslim minorities only to the Greek, Armenian and Jewish religious populations. Although being a non-Muslim group as well, the Assyrians are excluded from the Turkish concept of minorities and, therefore, also from minority protection. In contrast to that, the EU’s concept of minority includes ethnic, linguistic and religious minorities, which means that according to the EU’s concept of minorities, also ethnic minorities like the Kurds, linguistic minorities like the Laz and religious minorities like the Alevis are included in the term “minority” and, therefore, these minorities should benefit from specific minority protection rights. To find a common basis for discussing the unsatisfactory issue of minority rights in Turkey, the concept of “ethnic groups” is introduced by the author as the most promising approach to deal with this unreconciled conceptual difference. According to this concept, ethnic groups could form a sub-identity of Turkishness and help build a legal basis to the treatment of minority groups founded on human rights, which would be compatible with both Turkish and EU Law. (shrink)

Among the problems raised by admitting statements which are neither true nor false is the problem of how we are to cope with vague concepts. One method of dealing with such concepts has been suggested by Rosser/Turquette (1952), i.e. the employment of a many valued set theory. It is our intention in this paper to discuss the use of many valued logics, especially the set theoretical proposals of Zadeh and Brown, in dealing with this problem. Towards this end, we (...) shall pay close attention to the development of the concepts of fuzzy sets and fuzzy systems. In this regard, it will be argued that Zadeh had in mind a many valued logic where the connectives are interpreted according to Lukasiewicz and Tarski, whereas Brown's version may be based upon a Boolean-valued logic. Furthermore, we shall have occasion to distinguish between two sources of imprecision in specifying the membership of classes, i.e. conceptual vagueness and imprecision due to inexact measurement. Due to Suppes' work in this field, the latter sort of imprecision may be exemplified by providing a theory of the inexact measurement of subjective probability. Finally, we shall discuss some ways in which these two types of imprecision are intertwined. (shrink)

It is accepted throughout the world today that a new approach is needed to health care, one that brings to the forefront the role of economic development. This situation has also increased the importance of the health care sector and health data have begun to take a significant place in countries’ development indicators. Health care services as a basic indicator of social and economic development in Turkey, as in the rest of the world, continue to gain in importance. However, there (...) is a significant difference between health indicators for Turkey, which is a candidate for full membership of the European Union, and European Union countries. (shrink)

Jeremy Fix, in ‘Two Sorts of Constitutivism’ (2021), makes a case for the possibility of contingent essential properties to account for the metaphysical status of constitutive standards of things. In this brief note, I will present an open problem affecting Fix's conception, namely, the explanation of the membership of particulars to a genus, which is necessary to identify particulars subject to standards.

This article attempts to study cost minimizing multi-objective fractional solid transportation problem with fuzzy cost coefficients c ˜ i j k r {\tilde{c}}_{ijk}^{r}, fuzzy supply quantities a ˜ i {\tilde{a}}_{i}, fuzzy demands b ˜ j {\tilde{b}}_{j}, and/or fuzzy conveyances e ˜ k {\tilde{e}}_{k}. The fuzzy efficient concept is introduced in which the crisp efficient solution is extended. A necessary and sufficient condition for the solution is established. Fuzzy geometric programming approach is applied to solve the crisp problem by defining (...) class='Hi'>membership function so as to obtain the optimal compromise solution of a multi-objective two-stage problem. A linear membership function for the objective function is defined. The stability set of the first kind is defined and determined. A numerical example is given for illustration and to check the validity of the proposed approach. (shrink)

This paper addresses the rights-ascription problem—the problem of determining what properties or characteristics one must have to qualify for fundamental rights. As argued here, one traditional response to this problem—the “humanity standard”—fails because rather than recognizing the problem as one of moral predication regarding actual individuals, it accepts nominal membership in a vaguely defined class (e.g., “humanity”) as adequate grounds for ascribing these rights. This failure encourages the hypothesis pursued here, viz., that qualifying for fundamental rights is a matter (...) of whether, given their specific nature, certain individuals (whether human or not) can benefit from the distinctive normative benefits of the fundamental rights ascribed to them. The paper uses a significantly modified rendition of Feinberg’s analysis to argue that only individuals who have or are capable of having certain interests, those that are for their own sake as is their due, qualify to make fundamental rights-claims. Of paramount importance here is the relationship between having such interests and having a “transitive due”; i.e. the psychological capacity to benefit from the moral respect and deference afforded oneself by others when asserting or exercising one’s fundamental rights. (shrink)

In this paper, we introduce the integer programming in neutrosophic environment, by considering coffecients of problem as a triangulare neutrosophic numbers. The degrees of acceptance, indeterminacy and rejection of objectives are simultaneously considered. The Neutrosophic Integer Programming Problem (NIP) is transformed into a crisp programming model, using truth membership (T), indeterminacy membership (I), and falsity membership (F) functions as well as single valued triangular neutrosophic numbers. To measure the efficiency of the model, we solved several numerical examples.

In this paper I discuss a central objection against diseases being natural kinds—namely, that diseases are processes or transitions and hence they should not be conceptualized in the ‘substantish’ framework of natural kinds. I indicate that the objection hinges on conceiving disease kinds as phase kinds, in contrast to the non-phase, natural kinds of the exact sciences. I focus on somatic diseases and argue, via a representative comparison, that if disease kinds are phase kinds, then exact science kinds are phase (...) kinds as well. On the other hand, if exact science kinds are non-phase kinds, then disease kinds are non-phase kinds as well. This objection should thus be rejected, under a certain caveat, though. If natural kind membership has an influence over the diachronic identity of kind members, then it is possible, in principle, to draw the phase/non-phase distinction such that an ‘ontological gap’ lies between medical kinds and exact science kinds. I show further that this caveat is unavoidable even in relation to substantive universals and ‘essential’ properties—two controversial, strong features that were traditionally associated to natural kinds. (shrink)

Modal conventionalism is the view that two crucial forms of sameness are mind-dependent. There is no phenomenon of sameness in kind, on this view, except in virtue of our conventions for individuating nature’s kinds; there is no phenomenon of numerical sameness across time, for an individual member of some natural kind, except in virtue of our conventions for individuating such members.1 Modal conventionalism has its realist opponents. These opponents have argued, following Kripke’s lead more than thirty years ago (Kripke 1972), (...) that the boundaries of at least many of nature’s kinds are carved out by nature itself, and not by our classifi catory practices (e.g., Millikan 2000: passim, e.g., pp. 25 and 72). But they have not generally argued, with anything approaching the same vigor, that modal conventionalism is wrong in its other main claim. They have not in general argued that the world-given connections among properties, that make those properties mind-independently be membership conditions for some natural kind, at the same time make those properties mind-independently be persistence conditions for the members of the kind—properties the departure of which constitutes a ceasing-to-exist for the object that formerly had them. On the contrary, opponents of modal conventionalism have.. (shrink)

In this paper, Taylor series is used to solve neutrosophic multi-objective programming problem (NMOPP). In the proposed approach, the truth membership, Indeterminacy membership, falsity membership functions associated with each objective of multi-objective programming problems are transformed into a single objective linear programming problem by using a first order Taylor polynomial series. Finally, to illustrate the efficiency of the proposed method, a numerical experiment for supplier selection is given as an application of Taylor series method for solving (...) neutrosophic multi-objective programming problem at end of this paper. (shrink)

While American physicians have traditionally practised as non-unionised professionals, there has been increasing debate in recent years over whether physicians in training (known also as interns, residents or house staff) are justified in unionising and using collective action. This paper examines specific ethical criteria that would permit union action, including a desire to ameliorate patient care as well as the goal of improving the conditions of working physicians. We posit that traditional rebuttals to physician unionisation often lean on an infinite (...) conception of a doctor’s energies and obligations, one that promotes burnout and serves to advance the financial motives of hospital management and administration. Furthermore, this paper explores the empirical justifications for collective action, which include substantial reductions in medical error. Finally, we address the free-rider problem posed by non-union physicians who might benefit from working improvements garnered through union action. We conclude that in order to maintain a notion of justice as fairness, resident physicians who benefit from union deliberations are impelled to acquire union membership or make a commensurate donation and that the healthcare organisations for which they work ought to share in the responsibility to improve patient care. (shrink)

The equation P = NP concerns algorithms for deciding membership in sets. The consensus is that P ≠ NP, although some prominent experts guess otherwise.

This paper proposes an answer to what Sandler calls ‘the problem of inconsequentialism’; the problem of providing justification for the claim that individuals should engage in unilateral reductions of their personal consumption, even though doing so will make an inconsequential contribution to mitigating the harmful impacts of the global environmental problems that the aggregate of such consumption causes. I provide an answer to this problem by developing a virtue ethics-based argument that a limited but significant class of consumption actions (...) performed by typical consumers in rich, industrialised economies in the global North are moral wrongdoings, and the corresponding unilateral reductions in personal consumption are morally obligatory. I make this argument by drawing an analogy between a typical Northern consumer and a member of a golf club who has discovered that his club causes harm—by dumping used golf balls into a nature reserve—to which he inconsequentially contributes. I advance a moral evaluation of remaining a member of a harming group, based on the attitudes to the harm expressed by so remaining, and on Sandler’s virtue-grounded agent-relative target principle of right action. I examine a number of objections to this argument. I use Elizabeth Cripps’s notion of a ‘harming putative group’ to respond to the objection that the set of individuals whose aggregated consumption causes environmental problems is merely an arbitrary abstract set, membership of which is not justifiable grounds for moral evaluation. I then present two responses to the objection that withdrawal from this harming putative group—by refraining to perform those consumption actions which constitute membership—is unduly demanding. (shrink)

In March this year is 20 years old Ukrainian Association of Religious Studies - all-Ukrainian secular public organization. UAR united on a voluntary basis scientists-religious scholars, teachers of religious studies disciplines of educational institutions, employees of museums, and other educational institutions of Ukraine. Membership in the Association is individual and collective. The work of UAR is based on public principles.

We define two versions of stability and efficiency of partitions and analyze their relationships for some matching rules. The stability and efficiency of a partition depends on the matching rule φ. The results are stated under various membership property rights axioms. It is shown that in a world where agents can freely exit from and enter coalitions, whenever the matching rule is individually rational and Pareto optimal, the set of φ-stable and φ-efficient partitions coincide and it is unique: the (...) grand coalition. Then we define a weaker version of stability and efficiency, namely specific to a given preference profile and find some negative results for stable matching rules. (shrink)

Özkal-Sanver (Theory Decis 59:193–205, 2005) studies stability and efficiency of partitions of agents in two-sided matching markets in which agents can form partitions by individual moves only, and a matching rule determines the matching in each coalition in a partition. In this study, we present the relationship between stability and efficiency of partitions that is analyzed for several matching rules and under various membership property rights codes, now allowing coalitional moves.