Partly motivated by description logics, poor man's logics have been proposed as an interesting fragment of modal logics. A poor man's logic is a propositional modal logic where only literals and the connectives ∧, □, and ◊ are allowed. It is known that the complexity of the satisfiability problem may drop dramatically when going from a full modal logic to the corresponding poor man's logic, e.g., in the case of modal logic K one goes from PSPACE-complete to coNP-complete. We prove (...) that it is sometimes possible to extend poor man's logics with restricted disjunctions (i.e., clauses) without increasing the computational complexity. For Horn and Krom clauses, we provide necessary and sufficient conditions for when the resulting logic is polynomial-time. Such extensions correspond to allowing a restricted use of the union operator in description logics. (shrink)

Aus dem Inhalt: Views from the North: Hans Petter Graver: Law, Justice and the State: Nordic Perspectives u Jacob Dahl Rendtorff: The Danish Welfare State: Philosophical Ideals and Systemic Reality u Sigri!Dur *orgeirsdottir: Feminist Ethics and Feminist Politics u Kuellike Lengi: The Situation of Human Rights in Estonia u Einar Palsson: Pythagoras and Early Icelandic Law u Law, Discourse and Rationality: Mats Flodin: Internal and External Rationality of Legal Systems u Logi Gunnarsson: A Discourse About Discourse u Hjordi!s Hakonardottir: Legal (...) Language: A Tool of Justice u Ghita Holmstrom-Hintikka: On the Use of Expert Witness in Legal Reasoning and Inquiry u Law, State and Nation: Agust H. Ing*orsson: Democracy, Bureaucracy and Marginalization of the State u Aleksander Peczenik: Law-State, Legal Certainty and Legitimacy of Law u Ove K. Pedersen/Sverre Raffnsoe: Reorganizing Society u Juha Raikka: Mill on National Sentiment u Pall Skulason: Concepts of the State and Classes of Value u Problems of Law and Rights: Britt-Mari Blegvad: How to Cope With Uncertainty: Trust and Law u Jon Wetlesen: Animal Rights or Human Duties?. (shrink)

We show that if there is no inner model with a Woodin cardinal and the Steel core model K exists, then every Jónsson cardinal is Ramsey in K, and every δ-Jónsson cardinal is δ-Erdös in K. In the absence of the Steel core model K we prove the same conclusion for any model L[E] such that either V = L[E] is the minimal model for a Woodin cardinal, or there is no inner model with a Woodin cardinal and V is (...) a generic extension of L[E]. The proof includes one lemma of independent interest: If V = L[A], where A $\subset$ κ and κ is regular, then L κ [A] is a Jónsson algebra. The proof of this result, Lemma 2.5, is very short and entirely elementary. (shrink)

We show that if there is no inner model with a Woodin cardinal and the Steel core model K exists, then every Jonsson cardinal is Ramsey in K, and every $\delta$-Jonsson cardinal is $\delta$-Erdos in K. In the absence of the Steel core model K we prove the same conclusion for any model L$[\mathscr{E}]$ such that either V = L$[\mathscr{E}]$ is the minimal model for a Woodin cardinal, or there is no inner model with a Woodin cardinal and (...) V is a generic extension of L$[\mathscr{E}]$. The proof includes one lemma of independent interest: If V = L$[\mathscr{A}]$, where A $\subset$ $\kappa$ and $\kappa$ is regular, then L$_\kappa$[A] is a Jonsson algebra. The proof of this result, Lemma 2.5, is very short and entirely elementary. (shrink)

We show that, like singular cardinals, and weakly compact cardinals, Jensen's core model K for measures of order zero [4] calculates correctly the successors of Jónsson cardinals, assuming $O^{Sword}$ does not exist. Namely, if $\kappa$ is a Jónsson cardinal then $\kappa^+ = \kappa^{+K}$ , provided that there is no non-trivial elementary embedding $j:K \longrightarrow K$ . There are a number of related results in ZFC concerning $\cal{P}(\kappa)$ in V and inner models, for $\kappa$ a Jónsson or singular cardinal.

In recruitment, promotion, admission, and other forms of wealth and power apportion, an evaluator typically ranks a set of candidates in terms of their perceived competence. If the evaluator is prejudiced, the resulting ranking will misrepresent the candidates’ actual ranking. This constitutes not only a moral and a practical problem, but also an epistemological one, which begs the question of what we should do – epistemologically – to mitigate it. The article is an attempt to begin to answer this question. (...) I first explore the presuppositions that must obtain for individual interventions to likely yield positive epistemological effects in ranking situations. I then compare these with the corresponding presuppositions of a novel, ‘post hoc’ approach to deprejudicing due to Jönsson and Sjödahl (Episteme 14(4):499–517, 2017), which does not attempt to change evaluators but attempts to increase the veracity of the rankings they produce after the fact (but before the rankings give rise to discriminatory effects) using statistical methods. With these two sets of presuppositions in place, I describe the limitations imposed by each presupposition on its intervention, compare presuppositions across the two kinds of interventions, and conclude that the two kinds of interventions importantly complement each other by having fairly disjoint, but non–conflicting, presuppositions. The post hoc intervention can thus complement an individual intervention (and vice versa) in situations where both are applicable (by adding further increases in veracity), but also by applying to situations where that intervention is not applicable (and thereby increase veracity in situations beyond the reach of that intervention). (shrink)

This book turns critical feminist scrutiny on national climate policies in India and examines what transition might really mean for marginalized groups in the country. -/- A vision of “just transitions” is increasingly being used by activists and groups to ensure that pathways towards sustainable futures are equitable and inclusive. Exploring this concept, this volume provides a feminist study of what it would take to ensure just transitions in India where gender, in relation to its interesting dimensions of power, is (...) at the centre of analysis. With case studies on climate mitigation and adaptation from different parts of India, the book brings together academics, practitioners and policymakers who provide commentary on sectors including agriculture, forestry and renewables. Overall, the book has relevance far beyond India’s borders, as India’s attempt to deal with its diverse population makes it a key litmus test for countries seeking to transition against a backdrop of inequality both in the Global North and South. -/- This volume will be of great interest to students and scholars of climate policy, gender studies, sustainable development and development studies more broadly. (shrink)

Definite descriptions occurring within the scopes of psychological verbs provide more puzzles than are traditionally acknowledged. This article presents one puzzle that is particularly intriguing.

What does it mean to study places in ‘crisis’ and how does that affect the research done on the ‘rural’? To be considered to be in crisis is not really new as any literature review of rural studies indicates. And yet, we live now in a new context, with new challenges for ‘rural’ research, in particular that of sustainability. Sustainability is the new policy focus and is increasingly reflected in research on rural Europe. Although scholars are beginning to theorize on (...) what is sustainable in and for rural areas, our intention is to take this further. We theorize on what the focus on crisis and, increasingly on sustainability, means for the research we do and the knowledge we produce on rural Europe. Our aim is to bring attention to the politics of past and present knowledge production on the rural to be able to imagine just and sustainable futures. In an analysis of literature primarily from Sweden and the UK, we argue that two construals, that of a rural crisis and that of rural–urban polarization, have set the tone for rural studies and may have overshadowed a more plural approach. We outline what might be needed from rural research to meet future challenges and what the notion of sustainability, with its emphasis on the entanglements of the social, economic and environmental, might mean for the future of rural research. (shrink)

This special issue contributes to a grounded understanding about 'sustainability' in a range of rural contexts and in so doing sheds light on accompanying tensions and implications for the future of rural areas in Europe. It also brings attention to how the rural might be changing as a result of this new focus on sustainability. The 17 contributions bring to light crucial dimensions of sustainability: (1) the imperative of wellbeing, belonging and care; (2) dimensions of power and identity; (3) the (...) apprehension of time and space - in other words, sustainability as a process and always in transition; (4) social and spatial justice; and (5) the question of knowledge production on the rural and on sustainability. (shrink)

Feminist decolonial scholars have called for disengaging from the current system built on a hierarchical logic of race and gender central to modern, colonial thinking. They have looked to worlds outside the modern system to lead us out of current unjust practices harming both humans and the environment. Although policymaking may be seen as the stronghold of the current political agenda and of the structures that have led to the climate crisis, we argue that climate policies too, are also crucial (...) for rethinking and transforming societies. Our examination of climate adaptation policies in Sweden and the literature from Europe shows how policy documents ignore and unknow the oppressive intersections of gender and power despite the knowledge that exists on these issues in the public domain. Drawing on the tools of agnotology, we examine how this is achieved by strategies of ‘denial, dismissal, diversion and displacement.’ Building on feminist post and decolonial scholarship, we make explicit the gendered and racial hierarchies and dichotomies underpinning these policy documents. At the same time, we bring attention to the nuances in the policy documents we study and look for the openings that might be used to bring about transformation by making these hierarchies explicit and calling them into question. We argue that a transformation is possible through a feminist post and decolonial intervention, even in policymaking otherwise ignorant of culture, values and the colonial histories that have produced contemporary society. (shrink)

In the limited literature on gender and climate change, two themes predominate – women as vulnerable or virtuous in relation to the environment. Two viewpoints become obvious: women in the South will be affected more by climate change than men in those countries and that men in the North pollute more than women. The debates are structured in specific ways in the North and the South and the discussion in the article focuses largely on examples from Sweden and India. The (...) article traces the lineage of the arguments to the women, environment and development discussions, examining how they recur in new forms in climate debates. Questioning assumptions about women's vulnerability and virtuousness, it highlights how a focus on women's vulnerability or virtuousness can deflect attention from inequalities in decision-making. By reiterating statements about poor women in the South and the pro-environmental women of the North, these assumptions reinforce North–South biases. Generalizations about women's vulnerability and virtuousness can lead to an increase in women's responsibility without corresponding rewards. There is need to contextualise debates on climate change to enable action and to respond effectively to its adverse effects in particular places. -/- . (shrink)

This study explores the relationship between people's values, loci of control and pro-environmental behaviours. 'Locus of control' refers to the extent to which people attribute control over events in life either to themselves or to external sources beyond their influence: in the former case, the individual is described as having an internal locus of control, and in the latter, an external one. The study hypothesised, and subsequently concluded, that self-transcendent values and internal loci of control were positively related to pro-environmental (...) behaviours, and also that loci of control moderate the link between people's values and behaviour; people with a low degree of self-transcendence values behave pro-environmentally if they have an internal locus of control. (shrink)

he importance of gender equality and of women’s work in relation to the environment is regarded as a crucial question for development in “third‐world” rural societies. “Development” and a certain standard of welfare make these issues appear to be less urgent in a wealthier country such as Sweden. In this article, I trace some of the contradictions and connections in the ways in which gender equality is conceptualized in women’s struggles vis‐à‐vis environmental issues in rural areas in Sweden and India. (...) The article throws light on two important insights: First, in Sweden, where gender equality has been actively pursued as the bedrock of modern societal organizing, the space to organize as women in relation to environmental issues was fraught with ambiguity. Second, development discourses about equality and empowerment of oppressed third‐world women not only bear on how gender equality is conceptualized and practiced in the global South but also shape the space for gender equality in the North. Analyzing the two cases in relation to each other reveals the travel of ideas and conversations across distant geographical spaces. While ideas about the independent, empowered woman are used to deny agency to women’s collectives in India, gendered discrimination has taken different forms in Sweden, making it more difficult to contest. Understanding how this takes place opens an opportunity for interruption in an order and a space that appears to have become narrower under the umbrella of development, welfare, and growth. It brings into question the category of development in a southern but particularly so in a northern context, where the North, and especially Sweden, is taken as a referent for questions of development and gender equality. -/- . (shrink)

We reply to Christoph Jäger's criticism of the conditional probability solution (CPS) to the value problem for reliabilism due to Goldman and Olsson (2009). We argue that while Jäger raises some legitimate concerns about the compatibility of CPS with externalist epistemology, his objections do not in the end reduce the plausibility of that solution.

This paper argues how boards of directors of three Icelandic oil companies were kept in the dark while the companies were collaborating in illegal competitive behaviour. The paper offers a unique view into a situation where information or lack thereof has played a key part in corporate governance, exploring the relationship between management and the board of directors and how information filtering can go wrong to the extent that vital information does not reach the board. The paper is based on (...) a case study of the illegal collaboration of the oil companies. It furthermore surveys the literature on information flow and information asymmetry for explanations of what happened in the case of the Icelandic oil companies. (shrink)

This paper is based on Lectures 1, 2 and 4 in the series of ten lectures titled “Algebraic Structures for Logic” that Professor Blok and I presented at the Twenty Third Holiday Mathematics Symposium held at New Mexico State University in Las Cruces, New Mexico, January 8-12, 1999. These three lectures presented a new approach to the algebraization of deductive systems, and after the symposium we made plans to publish a joint paper, to be written by Blok, further developing these (...) ideas. That project was still incomplete when Blok died. In fact, there is no indication that he had prepared a draft of the paper, and we do not know what new material he intended to include. I am therefore not in a position to complete the project as he had envisioned it. So, I have settled for the more limited objective of presenting the material from the three lectures, leaving to others the task of adapting the techniques used there to more general situations. (shrink)

Diffusion and institutionalization are of prime sociological importance, as both processes unfold at the intersections of relations and structures, as well as persistence and change. Yet they are often confounded, leading to theoretical and methodological biases that hinder the development of generalizable arguments. We look at diffusion and institutionalization distinctively, each as both a process and an outcome in terms of three dimensions: the objects that flow or stick; the subjects who adopt or influence; and the social settings through which (...) an innovation travels. We offer examples to flesh out these dimensions, and formulate testable propositions from our analytic framework that could lead to further theoretical refinement and progress. (shrink)

There has been much interest in group judgment and the so-called 'wisdom of crowds'. In many real world contexts, members of groups not only share a dependence on external sources of information, but they also communicate with one another, thus introducing correlations among their responses that can diminish collective accuracy. This has long been known, but it has-to date-not been examined to what extent different kinds of communication networks may give rise to systematically different effects on accuracy. We argue that (...) equations that relate group accuracy, individual accuracy, and group diversity are useful theoretical tools for understanding group performance in the context of research on group structure. In particular, these equations may serve to identify the kind of group structures that improve individual accuracy without thereby excessively diminishing diversity so that the net positive effect is an improvement even on the level of collective accuracy. Two experiments are reported where two structures are investigated from this perspective. It is demonstrated that the more constrained network outperforms the network with a free flow of information. (shrink)

If people believe that some property is true of all members of a class such as sofas, then they should also believe that the same property is true of all members of a conjunctively defined subset of that class such as uncomfortable handmade sofas. A series of experiments demonstrated a failure to observe this constraint, leading to what is termed the inverse conjunction fallacy. Not only did people often express a belief in the more general statement but not in the (...) more specific, but also when they accepted both beliefs, they were inclined to give greater confidence to the more general. It is argued that this effect underlies a number of other demonstrations of fallacious reasoning, particularly in category-based induction. Alternative accounts of the phenomenon are evaluated, and it is concluded that the effect is best interpreted in terms of intensional reasoning [Tversky, A., & Kahneman, D.. Extensional versus intuitive reasoning: the conjunction fallacy in probability judgment. Psychological Review, 90, 293-315.]. (shrink)

Process-reliabilist analyses of justification and knowledge face the generality problem. Recent discussion of this problem turns on certain untested empirical assumptions that this paper investigates. Three experiments are reported: two are free-naming studies that support the existence of a basic level in the previously unexplored domain of names for belief-forming processes; the third demonstrates that reliability judgments for the basic-level belief-forming process types are very strongly correlated with the corresponding justification and knowledge judgments. I argue that these results lend support (...) to process-reliabilism; I then go on to explore several different ways to make use of them in solutions to the generality problem. (shrink)

This article views gender dynamics and strategies for change in a small Swedish village from a systems perspective. In the context of the struggle for the communal management of forests, tensions arose in the relations among the people in the village who differed in their opinions as to how to approach village development. Some village women argued for the importance of issues other than only community forestry in the development of the community's future livelihoods and well-being. They also believed that (...) linking these activities with each other are vital for the community. Co-operative inquiry with women in the village reveals that, in their view, the community's overall needs are the most meaningful point of departure and not just individual resource management initiatives. They believed that it was vital to link resource management with other developmental activities in the village. The inquiry process also shows how the differences that may arise between men and women are dependent on the context, their relationships, and the networks they activate rather than the differences emerging solely from gender roles or the structure. Attention to how women and men “draw boundaries” around their activities and relationships expands our understanding of the diverse means they use for reaching their objectives. It also highlights the role of innovators who cross these boundaries and work toward change. (shrink)

Holistic theories of meaning have, at least since Dummett’s Frege: The Philosophy of language, been assumed to be problematic from the perspective of the incremental nature of natural language learning. In this essay I argue that the general relationship between holism and language learning is in fact the opposite of that claimed by Dummett. It is only given a particular form of language learning, and a particular form of holism, that there is a problem at all; in general, for all (...) forms of holism, and irrespective of how language learning is understood, semantic holism is conducive to language learning. The paper has three main parts. In the first, I demonstrate with the use of a simple formal system, that the form of holism that generates the problem that Dummett draws attention to is really decomposable into three distinct components, each of which is necessary for the problem to arise. In the second part, I demonstrate that even Dummett’s strong form of holism is compatible with one natural way in which to understand the incremental nature of language learning. In the third part, I outline the reasons why all forms of holism are conducive to language learning and offer two ways in which this general fact can be spelled out precisely. I end the paper by addressing some possible objections, and in doing so I draw attention to some affinities between semantic holism and the principle of compositionality, a semantic principle which has long been assumed to be conducive to language learning. (shrink)

We give a simple proof of the canonicity of Sahlqvist identities, using methods that were introduced in a paper by Jónsson and Tarski in 1951.

The goal of inquiry in this essay is to ascertain to what extent the Principle of Compositionality – the thesis that the meaning of a complex expression is determined by the meaning of its parts and its mode of composition – can be justifiably imposed as a constraint on semantic theories, and thereby provide information about what meanings are. Apart from the introduction and the concluding chapter the thesis is divided into five chapters addressing different questions pertaining to the overarching (...) goal of inquiry. Chapter Two is an attempt to determine whether the Principle of Compositionality is a trivial principle. It is argued that this is not the case in the context of providing the semantics of natural languages since it is an open question whether the best theories that respect available syntactic and semantic data are compositional. Chapter Three and Chapter Four ask whether there are reasons to think that the Principle of Compositionality is true. It is argued that the three most commonly cited reasons for thinking that correct semantic theories must be compositional – Linguistic Creativity, Productivity and Systematicity – in fact only give us reasons to think that the meaning of complex expressions depend on the meanings of their parts and their modes of composition, but not that the meaning of complex expressions depend ONLY on those factors. Chapter Five asks whether there are any reasons to think that the Principle of Compositionality is false. It is argued that all the phenomena that have been suggested entail non-compositionality are in fact compatible with some versions of compositionality. Even if this conclusion is reached in this chapter, the conclusion of the previous two chapters entails that we are not justified in imposing the Principle of Compositionality as an adequacy constraint on Semantic theories. Chapter Six explores the ways in which information about what meanings are can be derived by imposing constraints on semantic theories. It is argued that the distinction emphasized in Chapter Three and Chapter Four between depending on and depending ONLY on is of critical importance. It is demonstrated that the informative potential of the Principle of Compositionality goes far beyond that of the principle we are in fact justified in imposing on semantic theories. So not only is it the case that we cannot learn anything about meanings from the justified imposition of the Principle of Compositionality – since we cannot justifiably impose it as a constraint on semantic theories – what we could have learned from it had we been justified in imposing it is very different from what we can learn from the principle that we are justified in imposing. (shrink)

Within-category induction is the projection of a generic property from a class to a subtype of that class. The modifier effect refers to the discovery reported by Connolly et al., that the subtype statement tends to be judged less likely to be true than the original unmodified sentence. The effect was replicated and shown to be moderated by the typicality of the modifier. Likelihood judgements were also found to correlate between modified and unmodified versions of sentences. Experiment 2 elicited justifications, (...) which suggested three types of reason for the effect-pragmatics, knowledge-based reasoning, and uncertainty about attribute inheritance. It is argued that the results provide clear evidence for the default inheritance of prototypical attributes in modified concepts, although a full account of the effect remains to be given. (shrink)

This volume is the second installment in Stefan Jonsson’s epic study of the crowd and the mass in modern Europe, building on his work in A Brief History of the Masses, which focused on monumental artworks produced in 1789, 1889, and 1989.