Mathematicians appear to have quite high standards for when they will rely on testimony. Many mathematicians require that a number of experts testify that they have checked the proof of a result p before they will rely on p in their own proofs without checking the proof of p. We examine why this is. We argue that for each expert who testifies that she has checked the proof of p and found no errors, the likelihood that the proof contains no (...) substantial errors increases because different experts will validate the proof in different ways depending on their background knowledge and individual preferences. If this is correct, there is much to be gained for a mathematician from requiring that a number of experts have checked the proof of p before she will rely on p in her own proofs without checking the proof of p. In this way a mathematician can protect her own work and the work of others from errors. Our argument thus provides an explanation for mathematicians’ attitude towards relying on testimony. (shrink)

The phenomenon of shared intention has received much attention in the philosophy of mind and action. Margaret Gilbert (1989, 2000c, 2014b) argues that a shared intention to do A consists in a joint commitment to intend to do A. But we need to know more about the nature of joint commitments to know what exactly this implies. While the persistence of joint commitments has received much attention in the literature, their impersistence has received very little attention. In this paper, we (...) shed light on the impersistence of joint commitments by showing how joint commitments can be dissolved by unexpected events. (shrink)

If we want to understand why mathematical knowledge is extraordinarily reliable, we need to consider both the nature of mathematical arguments and mathematical practice as a social practice. Mathematical knowledge is extraordinarily reliable because arguments in mathematics take the form of deductive mathematical proofs. Deductive mathematical proofs are surveyable in the sense that they can be checked step by step by different experts, and a purported proof is only accepted as a proof by the mathematical community once a number of (...) experts have checked the proof. Hence, the reliability of the body of mathematical knowledge is in part obtained through the surveyability of proofs and the social process of proof validation. This chapter reviews work relating to (1) the norm in the mathematical community of only counting as argument deductive mathematical proof, and (2) the norm of only counting as deductive mathematical proof an argument that has been confirmed to be a deductive mathematical proof by a number of experts. The chapter also presents cases of unusual mathematical proofs or arguments that challenge these norms. (shrink)

Mathematicians often intentionally leave gaps in their proofs. Based on interviews with mathematicians about their refereeing practices, this paper examines the character of intentional gaps in published proofs. We observe that mathematicians’ refereeing practices limit the number of certain intentional gaps in published proofs. The results provide some new perspectives on the traditional philosophical questions of the nature of proof and of what grounds mathematical knowledge.

We present a taxonomy of errors in the scientific literature and an account of how the errors are distributed over the categories. We have developed the taxonomy by studying substantial errors in the scientific literature as described in retraction notices published in the journal Science over the past 35 years. We then examine how the sorts of errors that lead to retracted papers can be prevented and detected, considering the perspective of collaborating scientists, journal editors and referees, and readers of (...) the published articles. (shrink)

The authorship policies of scientific journals often assume that in order to be able to properly place credit and responsibility for the content of a collaborative paper we should be able to distinguish the contributions of the various individuals involved. Hence, many journals have introduced a requirement for author contribution statements aimed at making it easier to place credit and responsibility on individual scientists. We argue that from a purely descriptive point of view the practices of collaborating scientists are at (...) odds with the requirement for author contribution statements. We also argue that from a normative point of view the authorship policies may be unnecessary. Our arguments draw on an examination of 35 years of retraction notices in the journal Science. (shrink)

We present a case study of how mathematicians write for mathematicians. We have conducted interviews with two research mathematicians, the talented PhD student Adam and his experienced supervisor Thomas, about a research paper they wrote together. Over the course of 2 years, Adam and Thomas revised Adam’s very detailed first draft. At the beginning of this collaboration, Adam was very knowledgeable about the subject of the paper and had good presentational skills but, as a new PhD student, did not yet (...) have experience writing research papers for mathematicians. Thus, one main purpose of revising the paper was to make it take into account the intended audience. For this reason, the changes made to the initial draft and the authors’ purpose in making them provide a window for viewing how mathematicians write for mathematicians. We examined how their paper attracts the interest of the reader and prepares their proofs for validation by the reader. Among other findings, we found that their paper prepares the proofs for two types of validation that the reader can easily switch between. (shrink)

The authorship policies of scientific journals often assume that in order to be able to properly place credit and responsibility for the content of a collaborative paper we should be able to distinguish the contributions of the various individuals involved. Hence, many journals have introduced a requirement for author contribution statements aimed at making it easier to place credit and responsibility on individual scientists. We argue that from a purely descriptive point of view the practices of collaborating scientists are at (...) odds with the requirement for author contribution statements. We also argue that from a normative point of view the authorship policies may be unnecessary. Our arguments draw on an examination of 35 years of retraction notices in the journal Science. (shrink)

It has been a common belief among scientists, including mathematicians, that young scientists are especially good at bringing about scientific change. A number of studies suggest, however, that older scientists are not more resistant to change than young scientists are. It is nonetheless worth examining why a scientist’s or mathematician’s outsider status – due to age, educational background, or something else – can sometimes be effective in enabling scientific change. This paper focuses on the case of the solving of the (...) Four Color Problem by Wolfgang Haken and Kenneth Appel. Building on Donald MacKenzie’s paper ‘Slaying the kraken: The sociohistory of a mathematical proof’, I argue that Haken’s outsider status is central to understanding his success with the problem. On this basis, I offer an argument against Margaret Gilbert’s account of why a scientist’s outsider status can be effective in enabling scientific change. (shrink)

Retractions are rare in science, but there is growing concern about the impact retracted papers have. We present data on the retractions in the journal Science, between 1983 and 2017. Each year, approximately 2.6 papers are retracted; that is about 0.34% of the papers published in the journal. 30% of the retracted papers are retracted within 1 year of publication. Some papers are retracted almost 12 years after publication. 51% of the retracted papers are retracted due to honest mistakes. Smaller (...) research teams of 2–4 scientists are responsible for a disproportionately larger share of the retracted papers especially when it comes to retractions due to honest mistakes. In 60% of the cases all authors sign the retraction notice. (shrink)

In his account of scientific revolutions, Thomas Kuhn suggests that after a revolutionary change of theory, it is as if scientists are working in a different world. In this paper, we aim to show that the notion of world change is insightful. We contrast the reporting of the discovery of neon in 1898 with the discovery of hafnium in 1923. The one discovery was made when elements were identified by their atomic weight; the other discovery was made after scientists came (...) to classify elements by their atomic number. By considering two instances of the reporting of the discovery of a new chemical element 25 years apart, we argue that it becomes clear how chemists can be said to have been responding to different worlds as a result of the change in the concept of a chemical element. They saw, did, and reported different things as they conducted their research on the new chemical elements. (shrink)

Retractions are rare in science, but there is growing concern about the impact retracted papers have. We present data on the retractions in the journal Science, between 1983 and 2017. Each year, approximately 2.6 papers are retracted; that is about 0.34% of the papers published in the journal. 30% of the retracted papers are retracted within 1 year of publication. Some papers are retracted almost 12 years after publication. 51% of the retracted papers are retracted due to honest mistakes. Smaller (...) research teams of 2–4 scientists are responsible for a disproportionately larger share of the retracted papers especially when it comes to retractions due to honest mistakes. In 60% of the cases all authors sign the retraction notice. (shrink)

The primary question addressed in this article is how to understand and produce praxis development in the complex and contentious field of street communities of young marginalized men, an area highlighted almost on a daily basis in the Danish media under headlines with terms such as ‘foreigner problems’, ‘ghetto problems’, ‘gang conflicts’ and ‘gang war’. Since 2009, activists and professionals related to this field have gathered at Grundtvigs Højskole where they initiated and inspired community building activities in relation to the (...) recent gang conflicts in the Copenhagen area of Denmark. The article explores these practices and changes, including some of the communal initiatives arising in response to the escalating gang conflicts. The conflict and community building activities are contextualized in terms of broader tendencies and changes in Danish society, from enduring struggles with ethnic othering of young minority men since the late 1990s, to other societal changes escalating ‘gang-conflicts’ to ‘gang-war’. The article examines how these changes produce new dynamics, tensions and dimensions of binary thinking, which in turn creates new dilemmas in the everyday lives of the people involved in social work practice, community building activities and praxis research. (shrink)

In this article, drawing on the discursive psychology of Rom Harré, we show how mapping the exchange of words among people might disclose a complex reality; not merely that which farmers explicitly talk ‘about’ but the reality implicitly at stake within the communication. More specifically, we show how discourses involving modern farmers reveal an underlying placing in an abstract space, having sub-spaces defined by the life-orientation, sense of self and according self-positioning of modern people. In this way, we construct a (...) road map of a set of ‘individualities’ characterizing the life of modern farmers: an individuality of citizenship, an individuality of geographies and an individuality of experience. Consequently, farmers face the problem that this multiplicity of individuality prevents them from communicating, as we will call it, univocally in the public by contrast to the univocal voices of other established social groups. We will analyse the structure of that problem by viewing diverse relations between the authority and the authenticity of different partners in the conversation on land use. (shrink)

The paper reviews the current state of play around anti-representationalist attempts at countering Clark and Toribio’s representation-hunger thesis. It introduces a distinction between different approaches to Chemero’s Radical embodied cognition thesis in the form of, on the one hand, those pushing a hard line and, on the other, those who are more relaxed about their anti-representationalist commitments. In terms of overcoming Clark and Toribio’s thesis, hardliners seek to avoid any mentioning of mental content in the activity they purport to (...) explain. Yet, the paper argues, adopting a hard line complicates this endeavor considerably and unnecessarily. Those promoting a relaxed REC, however, are better off in that they have no problem in recognizing that some types of cognition are hybrid. By turning to Hutto and Myin’s Radical Enactivism as a prime example of a relaxed approach to the REC thesis, the paper points towards the lack of continuity between covariant information and informational content as the gap that would necessarily have to be closed in order for RECers to, once and for all, be able to dismiss Clark and Toribio’s hypothesis that certain kinds of cognition are per definition off-limits to anti-representationalism. (shrink)

William James’ Principles of Psychology, in which he made famous the ‘specious present’ doctrine of temporal experience, and Edmund Husserl’s Zur Phänomenologie des inneren Zeitbewusstseins, were giant strides in the philosophical investigation of the temporality of experience. However, an important set of precursors to these works has not been adequately investigated. In this article, we undertake this investigation. Beginning with Reid’s essay ‘Memory’ in Essays on the Intellectual Powers of Man, we trace out a line of development of ideas (...) about the temporality of experience that runs through Dugald Stewart, Thomas Brown, William Hamilton, and finally the work of Shadworth Hodgson and Robert Kelly, both of whom were immediate influences on James (though James pseudonymously cites the latter as ‘E.R. Clay’). Furthermore, we argue that Hodgson, especially his Metaphysic of Experience (1898), was a significant influence on Husserl. (shrink)

We use recent developments within philosophy of science and within certain strands of linguistic research to throw light on each other. According to Ronald Giere's perspectivist philosophy of science, the scientific understanding of reality must proceed along different, mutually irreducible lines of approach. Giere's proposal, however, leaves unresolved the problem of how to integrate the ever‐growing multitude of highly diverse scientific accounts of what is, after all, one and the same world. We propose a technique for the alignment of different (...) perspectives that will permit cross‐perspectival explanation, and thus allow for a more holistic picture of reality to emerge. With respect to modern linguistics, however, Giere's perspectivism merely legalises a de facto state of affairs, as this discipline displays the peaceful coexistence of a multitude of different theoretical perspectives. Still, this makes it all the more important to show how the different aspects of language picked out by these different perspectives combine to form one single complex reality. During our investigation, a largely overlooked type of reduction within linguistics comes to light, prevalent in classical as well as current work within speech act theory and politeness theory. We suggest how a more holistic understanding of language can be attained through our technique for integrating different perspectives. (shrink)

This chapter examines the philosophical discussion concerning the relationship between time, memory, attention, and consciousness, from Locke through the Scottish Common Sense tradition, in terms of its influence on James' development of the specious present doctrine. The specious present doctrine is the view that the present moment in experience is non punctate, but instead comprises some nonzero amount of time; it contrasts with the mathematical view of the present, in which the divide between past and future is merely a point (...) or a line with no thickness. The anonymous source for the term 'specious present' is revealed as a retired businessman-turned-amateur philosopher. The more likely source for the idea itself is a little-known philosopher, Shadworth Hollway Hodgson, who was not merely a significant influence on James but also on Husserl's development of the tripartite account of internal time consciousness. I conclude by demonstrating how James' changing views on the relationship between concepts and experience meant that by the later period of his writings, including those in which he develops his own views on pragmatism, James would have not merely noted the contrast between a mathematical conception of the present and our actual experience of it, he would have taken a further step and condoned the thick experience of the present as demonstrating the inadequacy of the intellectualized mathematical characterization. (shrink)

The idea that people’s numerical identity may sometimes be discontinuous over time initially appears to provide useful material for defending restrictions on putatively self-harming behaviour in a non-paternalistic manner. According to this line of thinking, sometimes a putatively self-harming act is, in fact, a matter of ‘harm to others’. Yet, in this paper I argue that if we, as we ought to do, take into consideration the non-identity problem, this challenges the notion that the agent at T1 is in (...) fact imposing harm on anyone, even when we accept that he or she is numerically different from the agent at T2. If the life of the agent at T2 is still worth living, the agent is not worse off than he or she would have been in spite of the consequences pertaining to the putatively self-harming act since he or she would otherwise never have come into existence. In this way, the argument I put forward in this paper calls in question the ability of the shifting identity argument to actually justify imposing restrictions on self-harming behaviour. (shrink)

The unquestionable achievement of J. G. A. Pocock's The Machiavellian Moment was to describe the retention of pre-modern values in a modern society. Pocock was notoriously accused of decentring Locke and side-lining the Liberal Tradition. A more pertinent critique had it that he failed to articulate how civic humanism in the context of increasingly commercial societies produced more than Jeremiahs or Cassandras. This article explains how Pocock responded to his various critics by inventing the term “commercial humanism” in an effort (...) to clarify the way in which classical virtue was modified in modern commercial contexts, especially by natural jurists and republicans. Commercial humanism proved controversial but stimulated one of the most original scholars working in the history of political thought, István Hont, to undertake a prolonged engagement with Pocock's revisionist ideas, which ultimately allowed him to answer Pocock's critics better than Pocock, whose voice remained too in tune with those whose view of modern political thought he had rejected. For Hont, Pocock's labours in the history of political thought remained less relevant to present politics than they might become, once the depth of eighteenth-century analyses of the relationship between wealth and virtue was recovered. (shrink)

This book describes the pedagogical foundations of the Roskilde Model of education and educational design. It presents knowledge about how principles of problem-oriented, interdisciplinary and participant-directed project work may serve as a basis for planning and applying educational activities at institutions of higher learning. It discusses the dilemmas, problems, and diverging views that have challenged the model, provoking experiments and reforms that have helped develop practice without compromising the key principles. The Roskilde Model combines various student-centered learning concepts into a (...) nexus, providing the foundation for a consistent pedagogical practice that is strongly supported by the educational structure and the academic profile of the university. A complex concept, the Roskilde Model refers to three different aspects: The first one is problem-oriented interdisciplinary and participant-directed project work (PPL). At Roskilde University, half of all study activities are organized in line with this particular pedagogical approach. The second aspect the model refers to is the organizing of university education on the basis of four interdisciplinary bachelor programmes. These programmes are part of the humanities, social sciences, natural sciences, and humanistic-technological sciences and give admission to two-year master programmes in a broad range of disciplines. The third aspect the model refers to is the interdisciplinary academic and educational profile of the university. (shrink)

Public health nursing is grounded in public health ideologies and fundamental nursing values. Researchers have argued that ethical responsibility from the perspective of the nurse is an understudied phenomenon. This meta-ethnography provides in-depth knowledge of how public health nurses (PHNs) experience ethical responsibility when working to prevent injury and disease, and promote health and well-being in children, young people and their families. There are reciprocal findings across the 10 included studies. The findings reveal that these nurses often feel alone, have (...) worries and uncertainties and are afraid of doing wrong. They describe unclear boundaries in their work, creating a heightened sense of responsibility. PHNs fight lonely battles. Yet they show courage and commitment and are ready to stand up and fight for children and families who do not receive adequate care. A line of argument is developed and the metaphorical phrase Chivalrous knights in moral armour is used to express the authors’ overall interpretations of the findings. Reflection on the findings shows how the different dimensions of ethical responsibility are interconnected. The nurses’ ethical sensitivity enables them to feel compassion for others and they show indignation when vulnerable others are not treated with dignity and respect. Indignation and compassion are interrelated, and when human life and dignity are threatened, the ethical demand to respond emerges. Indignation is a precursor to moral courage, and the nurses’ moral sensitivity and respect for their clients emboldens them to stand up for vulnerable others. The findings also illustrate the paradoxical nature of freedom. Freedom of choice due to unclear boundaries heightens the nurses' sense of responsibility. This research is an important step in theory development and has implications for further research, education and practice. (shrink)

This chapter uncovers a less investigated aspect of the relationship between the two most important scholastic schools of the Renaissance, Thomism and Scotism: the influence of Scotist literature on distinctions as seen in some sixteenth-century Thomists. The chapter has a primary focus on Chrysostomus Javelli’s engagement in his discussion of divine attributes with the Scotist doctrine of distinctions, but also considers other Thomist sources. First, the beginnings of the highly specialised Scotist literature on distinctions are traced back to the start (...) of the fourteenth century; I show how some early followers of Duns Scotus, in particular Francis of Meyronnes and Petrus Thomae, systematised Scotus’ ontology of the various grades of being by compiling lists of subtle distinctions to be applied to various levels of reality. I give some indications as to the later reception of these models of distinctions in the Scotist school. Special attention is paid to Étienne Brulefer, since his summary of Petrus Thomae’s model of seven distinctions was Javelli’s source for the Scotist doctrine. I then investigate how Javelli worked with Brulefer’s summary, and how he sought to integrate the Scotist doctrine into his own discussion of divine attributes. Thomists traditionally allowed only a rational or mental kind of distinction among divine attributes, and between them and the divine essence. Javelli, however, endeavours to show how the Thomist position may be reconciled with the Scotist doctrine of a formal or ex natura rei distinction. He did not always endorse this conciliatory approach; I hypothesise that he changed his mind on the subject over time. Finally, I show how other Renaissance Thomists reacted to the Scotist system of distinctions; in particular, I draw attention to the Thomists Andreas Bodenstein von Karlstadt, Bartolomeo Manzoli, and Mattia Gibboni da Aquario, who all wrote treatises on Thomist distinction theory modelled on the Scotist system of distinctions. In some of this literature, lists of distinctions based on Thomist metaphysics were compiled in order to replace the Scotist system. I argue that Javelli’s approach is more conciliatory and, in fact, has some overlap with the concordist thought of Giovanni Pico della Mirandola, who himself considered Scotus and Aquinas to be in fundamental agreement as regards the distinction between divine attributes. (shrink)

A critical review of Collin Rice's book, Leveraging Distortions: Explanation, Idealization, and Universality in Science.

It is a commonly raised argument against thefamily resemblance account of concepts that, on thisaccount, there is no limit to a concept's extension.An account of family resemblance which attempts toprovide a solution to this problem by including bothsimilarity among instances and dissimilarity tonon-instances has been developed by the philosopher ofscience Thomas Kuhn. Similar solutions have beenhinted at in the literature on family resemblanceconcepts, but the solution has never received adetailed investigation. I shall provide areconstruction of Kuhn's theory and argue that (...) hissolution necessitates a developmental perspective withbuilds on both the transmission of taxonomies betweengenerations and a progressive development throughhistory. (shrink)

The Golden Age of postwar capitalism has been eclipsed, and with it seemingly also the possibility of harmonizing equality and welfare with efficiency and jobs. Most analyses believe that the emerging postindustrial society is overdetermined by massive, convergent forces, such as tertiarization, new technologies, or globalization, all conspiring to make welfare states unsustainable in the future. Social Foundations of Postindustrial Economies takes a second, more sociological and more institutional, look at the driving forces of economic transformation. What, as a result, (...) stands out is postindustrial diversity, not convergence. Macroscopic, global trends are undoubtedly powerful, yet their influence is easily rivalled by domestic institutional traditions, by the kind of welfare regime that, some generations ago, was put in place. It is, however, especially the family economy that hold the key as to what kind of postindustrial model will emerge, and to how evolving tradeoffs will be managed. Twentieth-century economic analysis depended on a set of sociological assumptions that, now, are invalid. Hence, to better grasp what drives today's economy, we must begin with its social foundations. (shrink)

Scientific Change How do scientific theories, concepts and methods change over time? Answers to this question have historical parts and philosophical parts. There can be descriptive accounts of the recorded differences over time of particular theories, concepts, and methods—what might be called the shape of scientific change. Many stories of scientific change attempt to give […].

This paper extends Mori’s (IEEE Robot Autom Mag 19:98–100, 2012) uncanny valley-hypothesis to include technologies that fail its basic criterion that uncanniness arises when the subject experiences a discrepancy in a machine’s human likeness. In so doing, the paper considers Mori’s hypothesis about the uncanny valley as an instance of what Heidegger calls the ‘challenging revealing’ nature of modern technology. It introduces seeming autonomy and heteronomy as phenomenological categories that ground human being-in-the-world including our experience of things and people. It (...) is suggested that this categorical distinction is more foundational than Heidegger’s existential structures and phenomenological categories. Having introduced this novel phenomenological distinction, the paper considers the limits of Mori’s hypothesis by drawing on an example from science fiction that showcases that uncanniness need not only be caused by machines that resemble human beings. In so doing, it explores how the seeming autonomy-heteronomy distinction clarifies (at least some of) the uncanniness that can arise when humans encounter advanced technology which is irreducible to the anthropocentrism that shapes Mori’s original hypothesis. (shrink)

This paper discusses the Uniqueness Thesis, a core thesis in the epistemology of disagreement. After presenting uniqueness and clarifying relevant terms, a novel counterexample to the thesis will be introduced. This counterexample involves logical disagreement. Several objections to the counterexample are then considered, and it is argued that the best responses to the counterexample all undermine the initial motivation for uniqueness.

Language is infused with materiality and should therefore not be considered as an abstract system that is isolated from socio-material reality. Expressions materialise language in social practices, thus providing the necessary basis for languaging activities. For this reason, it makes sense to challenge proponents of orthodox linguistics and others who hold that language can be studied in isolation from its concrete manifestations. By exploring the relation between materiality and linguistic activity, the article extends Malafouris’ Material Engagement Theory while clarifying the (...) phenomenon of ‘linguistic denotation’. In so doing, it critiques orthodox approaches to language which trace denotation to abstract meanings and/or mental representations. The article shows how the denotative aspects of language can be cashed out in non-representational terms and, furthermore, that the interrelation of denotation and materiality is crucial to human material culture in that it allows for material engagements to transcend localised contexts. These engagements become global in Latour’s sense and, in so doing, denotation ceases to demand descriptions in terms of representations. (shrink)

It is a well-established fact in representationalist cognitive science that concrete concepts influence human perception. In radical, anti-representationalist cognitive science, however, the case is far from clear. One reason for this is that proponents of Radical Enactivism yet have to clarify whether perceptual activity involving concepts is bound to rely on mental content or if it instantiates basic, contentfree cognition. The purpose of this paper is to show that concept-involving perception instantiates REC-style basic cognition. The paper begins by considering ‘cognitive (...) projection’ as the term is introduced by Distributed Cognition research. Although being introduced as a means for exploring concept-based perception in non-representationalist terms, I argue that ‘cognitive projection’ comes with mentalist overtones and unclarities concerning its linguistic basis. With the purpose of overcoming these shortcomings, I unfold a REC-friendly reading of Wittgenstein’s writings on aspect perception, arguing that basic concept-involving perception is an instantiation of basic cognition. Concludingly, with the aim of ensuring compatibility, I make a connection between conceptual aspect perception and the REC notion of attentional anchors. The latter has been introduced to explore the role of material artefacts in the context of science, technology, engineering, and mathematics educational design but has, I submit, the potential for being extended to other practical contexts. (shrink)

Postphenomenologists and performativists criticize classical approaches to phenomenology for isolating human subjects from their socio-material relations. The purpose of this essay is to repudiate their criticism by presenting a nuanced account of phenomenology thus making it evident that phenomenological theories have the potential for meshing with the performative idiom of contemporary science and technology studies. However, phenomenology retains an apparent shortcoming in that its proponents typically focus on human–nonhuman relations that arise in localized contexts. For this reason, it seems to (...) contrast with one of the core assumptions behind practical ontologies: that socio-practical significance extends beyond an agent’s immediate situatedness in a localized context. Turning to Heidegger’s phenomenology and his notion of ‘de-distancing’, the essay explores how localized phenomena that pertain to human experience connect with global practices and, thus, the possibility of consilience between phenomenological research and present-day STS. (shrink)

Name der Zeitschrift: Semiotica Jahrgang: 2018 Heft: 225 Seiten: 77-102.

In a previous article we have shown that Kuhn's theory of concepts is independently supported by recent research in cognitive psychology. In this paper we propose a cognitive re-reading of Kuhn's cyclical model of scientific revolutions: all of the important features of the model may now be seen as consequences of a more fundamental account of the nature of concepts and their dynamics. We begin by examining incommensurability, the central theme of Kuhn's theory of scientific revolutions, according to two different (...) cognitive models of concept representation. We provide new support for Kuhn 's mature views that incommensurability can be caused by changes in only a few concepts, that even incommensurable conceptual systems can be rationally compared, and that scientific change of the most radical sort—the type labeled revolutionary in earlier studies—does not have to occur holistically and abruptly, but can be achieved by a historically more plausible accumulation of smaller changes. We go on to suggest that the parallel accounts of concepts found in Kuhn and in cognitive science lead to a new understanding of the nature of normal science, of the transition from normal science to crisis, and of scientific revolutions. The same account enables us to understand how scientific communities split to create groups supporting new paradigms, and to resolve various outstanding problems. In particular, we can identify the kind of change needed to create a revolution rather precisely. This new analysis also suggests reasons for the unidirectionality of scientific change. (shrink)

The article presents a particular case of undergraduate students working on subprojects within the framework of their supervisors' (the authors') research project during Autumn Semester 2012 and Spring Semester 2013. The article's purpose is to show that an institutionalized focus on students as "research learners" rather than merely curriculum learners proves productive for both research and teaching. We describe the specific university learning context and the particular organization of undergraduate students' supervision and assistantships. The case builds on and further enhances (...) a well-established and proven university model of participant-directed, problem-oriented project work. We explore students' and researchers' experiences of being part of the collaboration, focusing on learning potentials and dilemmas associated with the multiple roles of researcher and student that characterized this particular intertwined research and education arrangement. We show that the connection to the research project assisted students to orientate, learn, and contribute in relation to empirical and theoretical aspects of research and supported the development of broad perspectives and deep analysis. (shrink)

In this paper, we investigate the use of event models for automated planning. Event models are the action defining structures used to define a semantics for dynamic epistemic logic. Using event models, two issues in planning can be addressed: Partial observability of the environment and knowledge. In planning, partial observability gives rise to an uncertainty about the world. For single-agent domains, this uncertainty can come from incomplete knowledge of the starting situation and from the nondeterminism of actions. In multi-agent domains, (...) an additional uncertainty arises from the fact that other agents can act in the world, causing changes that are not instigated by the agent itself. For an agent to successfully construct and execute plans in an uncertain environment, the most widely used formalism in the literature on automated planning is “belief states”: sets of different alternatives for the current state of the world. Epistemic logic is a significantly more expressive and theoretically better founded method for representing knowledge and ignorance about the world. Further, epistemic logic allows for planning according to the knowledge (and iterated knowledge) of other agents, allowing the specification of a more complex class of planning domains, than those simply concerned with simple facts about the world. We show how to model multi-agent planning problems using Kripke-models for representing world states, and event models for representing actions. Our mechanism makes use of slight modifications to these concepts, in order to model the internal view of agents, rather than that of an external observer. We define a type of planning domain called epistemic planning domains, a generalisation of classical planning domains, and show how epistemic planning can successfully deal with partial observability, nondeterminism, knowledge and multiple agents. Finally, we show epistemic planning to be decidable in the single-agent case, but only semi-decidable in the multi-agent case. (shrink)

The paper thematizes basic content-free cognition in human social practices. It explores the enlanguaged dimension of skilled practical doings and expertise by taking the minimal case of concept-based perception as its starting point. Having made a case for considering such activity as free of mental content, I argue in favor of the abolishment of the distinction between truth-telling and social consensus, thus questioning the assumption held by proponents of Radical Enactivism, namely that truth and accuracy conditions are restricted to content-involving (...) activity. Instead, I claim, even content-free practical activity can be evaluated on the basis of accuracy conditions which ultimately tie with agents’ practical understandings and the normative aspects of the practice. With this as my backdrop, I explore how expertise arises in the interplay of enlanguaged affordances, concept-involving perception and the normative accuracy conditions that constrain a particular practice. (shrink)