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.

A key question in the philosophy of logic is how we have epistemic justification for claims about logical entailment (assuming we have such justification at all). Justification holism asserts that claims of logical entailment can only be justified in the context of an entire logical theory, e.g., classical, intuitionistic, paraconsistent, paracomplete etc. According to holism, claims of logical entailment cannot be atomistically justified as isolated statements, independently of theory choice. At present there is a developing interest in—and endorsement of—justification holism (...) due to the revival of an abductivist approach to the epistemology of logic. This paper presents an argument against holism by establishing a foundational entailment-sentence of deduction which is justified independently of theory choice and outside the context of a whole logical theory. (shrink)

The aim of this paper is threefold. Firstly, §1 and §2 introduce the novel concept logical akrasia by analogy to epistemic akrasia. If successful, the initial sections will draw attention to an interesting akratic phenomenon which has not received much attention in the literature on akrasia (although it has been discussed by logicians in different terms). Secondly, §3 and §4 present a dilemma related to logical akrasia. From a case involving the consistency of Peano Arithmetic and Gödel’s Second Incompleteness Theorem (...) it’s shown that either we must be agnostic about the consistency of Peano Arithmetic or akratic in our arithmetical theorizing. If successful, these sections will underscore the pertinence and persistence of akrasia in arithmetic (by appeal to Gödel’s seminal work). Thirdly, §5 concludes by suggesting a way of translating the dilemma of arithmetical akrasia into a case of regular epistemic akrasia; and further how one might try to escape the dilemma when it’s framed this way. (shrink)

We study a logic for deontic necessity and sufficiency, as originally proposed in van Benthem :36–41, 1979). Building on earlier work in modal logic, we provide a sound and complete axiomatization for it, consider some standard extensions, and study other important properties. After that, we compare this logic to the logic of “obligation as weakest permission” from Anglberger et al. :807–827, 2015).

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.

We propose simple nonlinear mathematical models for the legal concept of balancing of interests. Our aim is to bridge the gap between an abstract formalisation of a balancing decision while assuring consistency and ultimately legal certainty across cases. We focus on the conflict between the rights to privacy and to the protection of personal data in Art. 7 and Art. 8 of the EU Charter of Fundamental Rights (EUCh) against the right of access to information derived from Art. 11 EUCh. (...) These competing rights are denoted by ( \(i_1\) ) _right to privacy _ and ( \(i_2\) ) _access to information_; mathematically, their indices are respectively assigned by \(u_1\in [0,1]\) and \(u_2\in [0,1]\) subject to the constraint \(u_1+u_2=1\). This constraint allows us to use one single index _u_ to resolve the conflict through balancing. The outcome will be concluded by comparing the index _u_ with a prior given threshold \(u_0\). For simplicity, we assume that the balancing depends on only selected legal criteria such as the social status of affected person, and the sphere from which the information originated, which are represented as inputs of the models, called legal parameters. Additionally, we take “time” into consideration as a legal criterion, building on the European Court of Justice’s ruling on the right to be forgotten: by considering time as a legal parameter, we model how the outcome of the balancing changes over the passage of time. To catch the dependence of the outcome _u_ by these criteria as legal parameters, data were created by a fully-qualified lawyer. By comparison to other approaches based on machine learning, especially neural networks, this approach requires significantly less data. This might come at the price of higher abstraction and simplification, but also provides for higher transparency and explainability. Two mathematical models for _u_, a time-independent model and a time-dependent model, are proposed, that are fitted by using the data. (shrink)

Default logic has been a very active research topic in artificial intelligence since the early 1980s, but has not received as much attention in the philosophical literature thus far. This paper shows one way in which the technical tools of artificial intelligence can be applied in contemporary epistemology by modeling a paradigmatic case of deep disagreement using default logic. In §1 model-building viewed as a kind of philosophical progress is briefly motivated, while §2 introduces the case of deep disagreement we (...) aim to model. On the heels of this, §3 defines our formal framework, viz., a refined Horty-style default logic. §4 then uses the framework to model deep disagreement, and finally §5 provides a critical discussion of the result. (shrink)

Recent studies on mind‐wandering reveal its potential role in goal exploration and planning future actions. How to understand these explorative functions and their impact on planning remains unclear. Given certain conceptions of intentions and beliefs, the explorative functions of mind‐wandering could lead to regular reconsideration of one's intentions. However, this would be in tension with the stability of intentions central to rational planning agency. We analyze the potential issue of excessive reconsideration caused by mind‐wandering. Our response resolves this tension, presenting (...) a model that aligns the roles of mind‐wandering in planning with empirical evidence and the sustained stability of intentions. (shrink)

The remarkable movement known as Solidarity recently celebrated its twenty-fifth anniversary in Poland. This essay provides a theoretical appreciation of the values and principles that guided and undergirded the movement, which greatly contributed to the fall of communism in Central and Eastern Europe. This systematic overview of the ethic of the Solidarity movement fills a lacuna in the field of ethics because ethicists who are interested in the concept of solidarity have largely overlooked the Polish experience of the 1980s. This (...) essay attempts to describe the key ingredients of the Polish ethic of solidarity by analyzing both Polish treatises on the subject and accounts of events on the ground. It elaborates conceptual categories and describes characteristic features of the movement in order to provide a phenomenological account of the nature of solidarity embodied in Poland during this era. These categories and characteristics include unity among differences, the foundation of hope at the movement's roots, self-sacrifice and heroism, promoting the equality and dignity of all, the centrality of participation, the affirmation of "bread and freedom," an option for the poor, and the insistence on life in truth. Although this essay does not attempt to demonstrate the relevance of this "thick" ethic of solidarity to capitalist, democratic societies today, by way of conclusion it raises questions pertaining to the contemporary significance of the Polish ethic of solidarity. (shrink)

Sehen, Horen, Riechen, Schmecken, Tasten: Die Autorin fragt nach Entstehung, Begrundung und Folgen dieser tradierten Ordnung der Sinne. Sie fragt auch nach den abweichenden Varianten, die von der antiken Idee des Korpers als ganzheitliches Sensorium uber die hoheren Sinne des Mittelalters bis zu den sinnlichen Vermogen der Aufklarung, wie Einbildungskraft und Dichtungsvermogen, reichen. Im 18. Jahrhundert verstarkte sich zusammen mit der anthropologischen Aufwertung der Sinnlichkeit der Impuls zur Uberschreitung der Funfzahl der Sinne und zur Umordnung der uberkommenen Hierarchie. An Textbeispielen (...) von Platon, Ovid und Goethe untersucht die Autorin uberdies Zusammenhange, aber auch Widerspruche, die zwischen der europaischen Liebeskultur und der Bewertung von Auge und Ohr als hohere, von Geschmack, Geruch und Tasten als niedere Sinne bestehen. (shrink)

Frederik L. Schodt explores his lifelong fascination with the Heart Sutra: its mesmerizing mantra, its ancient history, the 'emptiness' theory, and the way it is used around the world as a metaphysical tool to overcome chaos and confusion and reach a new understanding of reality--a perfection of wisdom."--Back cover.

We characterise the intermediate logics which admit a cut-free hypersequent calculus of the form \, where \ is the hypersequent counterpart of the sequent calculus \ for propositional intuitionistic logic, and \ is a set of so-called structural hypersequent rules, i.e., rules not involving any logical connectives. The characterisation of this class of intermediate logics is presented both in terms of the algebraic and the relational semantics for intermediate logics. We discuss various—positive as well as negative—consequences of this characterisation.

Artifacts are probably our most obvious everyday encounter with technology. Therefore, a good understanding of the nature of technical artifacts is a relevant part of technological literacy. In this article we draw from the philosophy of technology to develop a conceptualization of technical artifacts that can be used for educational purposes. Furthermore we report a small exploratory empirical study to see to what extent teachers’ intuitive ideas about artifacts match with the way philosophers write about the nature of artifacts. Finally, (...) we suggest a teaching and learning strategy for improving teachers’ concepts of technical artifacts through practical activities. (shrink)

This volume is the first collection of articles dedicated to Wittgenstein s thoughts on colour, focusing in particular on his so-called Remarks on Colour, a piece of writing that has received comparably little attention from Wittgenstein scholars. The articles discuss why Wittgenstein wrote so intensively about colour during the last years of his life andwhat significance these remarks have for understanding his philosophical work in general.".

Is there a morally relevant difference between a brain‐damaged human being and a nonhuman animal at the same cognitive and emotional level to justify, say, performing medical experiments on the animal but not the human being? Some hold that the misfortune of the human being allows us to distinguish between them. I consider the nature of misfortunate and argue that an appeal to misfortune fails to distinguish between the human being and the nonhuman animal when the treatment at issue is (...) equally morally serious, since the source of the limitation taken advantage of by performing the medical experiment, whether misfortunate or natural vulnerability, is irrelevant. (shrink)

The present contribution elucidates Husserl’s relationship to Lotze in the light of Winthrop Bell’s notes on Husserl’s 1912 seminar on Lotze’s theory of knowledge. Once again, these notes make it clear that Husserl highly appreciated the chapter on Plato’s theory of ideas from Lotze’s 1874 Logic and his anti-psychologistic view of logic, as far as it goes. However, it also becomes clear that Husserl rejected both Lotze’s account of the origins of objectivity in terms of the doctrine of “achievements of (...) thinking (Denkleistungen)” and the discussion of skepticism in the 1874 Logic against the background of his own (Bolzano-inspired) conception of intentionality and his treatment of the epistemological “problem of transcendence” in the framework of the “phenomenological reduction”. (shrink)

Is there a morally relevant difference between a brain‐damaged human being and a nonhuman animal at the same cognitive and emotional level to justify, say, performing medical experiments on the animal but not the human being? Some hold that the misfortune of the human being allows us to distinguish between them. I consider the nature of misfortunate and argue that an appeal to misfortune fails to distinguish between the human being and the nonhuman animal when the treatment at issue is (...) equally morally serious, since the source of the limitation taken advantage of by performing the medical experiment, whether misfortunate or natural vulnerability, is irrelevant. (shrink)

With the help of key normative concepts borrowed from social epistemology and work on epistemic duties and norms of justification we want to clarify what is at the core of learning mediated through testimony. In socially networked professional contexts, assessment of the epistemic reliability of networked information is important: justification of knowledge acquired via the word of others has an intrinsic social and normative dimension. Whereas the former has been largely taken into account in today’s learning theories based on social (...) constructivism and connectivism, the normative dimension of justification is very much overlooked. The enormous wealth of information on the internet, the myriad of seemingly contradictory statements and the distance that powerful media create between the information spread and the direct access to the facts and first-hand experience, poses challenges to learning theorists who want to formulate solid foundations for e-learning. This has led many to adopt theories, like socio-constructivism and connectivism, which put less focus on truth, accuracy and truthfulness in an effort to cope with dissenting opinions. We will argue that shying away from truthfulness as a central ingredient of learning is mistaken. You can have the benefits from today’s e-learning theories without committing to the fallacies of relativism or constructivism. (shrink)

On the basis of the Suppes–Sneed structuralview of scientific theories, we take a freshlook at the concept of refutability,which was famously proposed by K.R. Popper in 1934 as a criterion for the demarcation of scientific theories from non-scientific ones, e.g., pseudo-scientificand metaphysical theories. By way of an introduction we argue that a clash between Popper and his critics on whether scientific theories are, in fact, refutablecan be partly explained by the fact Popper and his criticsascribed different meanings to the term (...) theoryThen we narrow our attention to one particular theory,namely quantum mechanics, in order to elucidate general matters discussed. We prove that quantum mechanics is irrefutable in a rather straightforward sense, but argue that it is refutable in a more sophisticated sense, which incorporates someobservations obtained by looking closely at the practiceof physics. We shall locate exactly where non-rigourous elements enter the evaluation of a scientific theory – thismakes us see clearly how fruitful mathematics isfor the philosophy of science. (shrink)

SUMMARYThe history of the law of nations is generally seen as a synonym for the history of the laws of war. Yet, a strictly bilateral perspective can distort our interpretation of early modern diplomacy. The Peace of Utrecht inaugurated an era of relative stability in the European state system, based on balance-of-power politics and anti-hegemonic legal argumentation. Incidental conflicts ought to be interpreted against this background. Declarations of war issued in 1718, 1719 and 1733 during the War of the Quadruple (...) Alliance and the Polish Succession should not be read as doctrinal surrogates for trials between two parties, but as manifestos in a European arena. (shrink)