The theories of belief change developed within the AGM-tradition are not logics in the proper sense, but rather informal axiomatic theories of belief change. Instead of characterizing the models of belief and belief change in a formalized object language, the AGM-approach uses a natural language — ordinary mathematical English — to characterize the mathematical structures that are under study. Recently, however, various authors such as Johan van Benthem and Maarten de Rijke have suggested representing doxastic change within a (...) formal logical language: a dynamic modal logic. Inspired by these suggestions Krister Segerberg has developed a very general logical framework for reasoning about doxastic change: dynamic doxastic logic (DDL). This framework may be seen as an extension of standard Hintikka-style doxastic logic with dynamic operators representing various kinds of transformations of the agent's doxastic state. Basic DDL describes an agent that has opinions about the external world and an ability to change these opinions in the light of new information. Such an agent is non-introspective in the sense that he lacks opinions about his own belief states. Here we are going to discuss various possibilities for developing a dynamic doxastic logic for introspective agents: full DDL or DDL unlimited. The project of constructing such a logic is faced with difficulties due to the fact that the agent’s own doxastic state now becomes a part of the reality that he is trying to explore: when an introspective agent learns more about the world, then the reality he holds beliefs about undergoes a change. But then his introspective (higher-order) beliefs have to be adjusted accordingly. In the paper we shall consider various ways of solving this problem. (shrink)

This article takes off from Johan van Benthem’s ruminations on the interface between logic and cognitive science in his position paper “Logic and reasoning: Do the facts matter?”. When trying to answer Van Benthem’s question whether logic can be fruitfully combined with psychological experiments, this article focuses on a specific domain of reasoning, namely higher-order social cognition, including attributions such as “Bob knows that Alice knows that he wrote a novel under pseudonym”. For intelligent interaction, it is (...) important that the participants recursively model the mental states of other agents. Otherwise, an international negotiation may fail, even when it has potential for a win-win solution, and in a time-critical rescue mission, a software agent may depend on a teammate’s action that never materializes. First a survey is presented of past and current research on higher-order social cognition, from the various viewpoints of logic, artificial intelligence, and psychology. Do people actually reason about each other’s knowledge in the way proscribed by epistemic logic? And if not, how can logic and cognitive science productively work together to construct more realistic models of human reasoning about other minds? The paper ends with a delineation of possible avenues for future research, aiming to provide a better understanding of higher-order social reasoning. The methodology is based on a combination of experimental research, logic, computational cognitive models, and agent-based evolutionary models. Keywords Epistemic logic - Cognitive science - Intelligent interaction - Cognitive modeling. (shrink)

In the present version of these lecture notes only a number of typos and a few glaring mistakes have been corrected. Thanks to Paul Dekker for his help in this respect. No attempt has been been made to update the original text or to incorporate new insights and approaches. For a more recent overview, see our ‘Questions’ in the Handbook of Logic and Language (edited by Johan van Benthem and Alice ter Meulen, Elsevier, 1997).

The concept of affordances is rapidly gaining traction in the philosophy of mind and cognitive sciences. Affordances are opportunities for action provided by the environment. An important open question is whether affordances can be used to explain mental action such as attention, counting, and imagination. In this paper, we critically discuss McClelland’s (‘The Mental Affordance Hypothesis’, 2020, Mind, 129(514), pp. 401–427) mental affordance hypothesis. While we agree that the affordance concept can be fruitfully employed to explain mental action, we argue (...) that McClelland’s mental affordance hypothesis contain remnants of a Cartesian understanding of the mind. By discussing the theoretical framework of the affordance competition hypothesis, we sketch an alternative research program based on the principles of embodied cognition that evades the Cartesian worries. We show how paradigmatic mental acts, such as imagination, counting, and arithmetic, are dependent on sensorimotor interaction with an affording environment. Rather than make a clear distinction between bodily and mental action, the mental affordances highlight the embodied nature of our mental action. We think that in developing our alternative research program on mental affordances, we can maintain many of the excellent insights of McClelland’s account without reintroducing the very distinctions that affordances were supposed to overcome. (shrink)

Despite their success in describing and predicting cognitive behavior, the plausibility of so-called ‘rational explanations’ is often contested on the grounds of computational intractability. Several cognitive scientists have argued that such intractability is an orthogonal pseudoproblem, however, since rational explanations account for the ‘why’ of cognition but are agnostic about the ‘how’. Their central premise is that humans do not actually perform the rational calculations posited by their models, but only act as if they do. Whether or not the problem (...) of intractability is solved by recourse to ‘as if’ explanations critically depends, inter alia, on the semantics of the ‘as if’ connective. We examine the five most sensible explications in the literature, and conclude that none of them circumvents the problem. As a result, rational ‘as if’ explanations must obey the minimal computational constraint of tractability. (shrink)

The impact of science on ethics forms since long the subject of intense debate. Although there is a growing consensus that science can describe morality and explain its evolutionary origins, there is less consensus about the ability of science to provide input to the normative domain of ethics. Whereas defenders of a scientific normative ethics appeal to naturalism, its critics either see the naturalistic fallacy committed or argue that the relevance of science to normative ethics remains undemonstrated. In this paper, (...) we argue that current scientific normative ethicists commit no fallacy, that criticisms of scientific ethics contradict each other, and that scientific insights are relevant to normative inquiries by informing ethics about the options open to the ethical debate. Moreover, when conceiving normative ethics as being a nonfoundational ethics, science can be used to evaluate every possible norm. This stands in contrast to foundational ethics in which some norms remain beyond scientific inquiry. Finally, we state that a difference in conception of normative ethics underlies the disagreement between proponents and opponents of a scientific ethics. Our argument is based on and preceded by a reconsideration of the notions naturalistic fallacy and foundational ethics. This argument differs from previous work in scientific ethics: whereas before the philosophical project of naturalizing the normative has been stressed, here we focus on concrete consequences of biological findings for normative decisions or on the day-to-day normative relevance of these scientific insights. (shrink)

Maxwell’s Classical Electrodynamics (MCED) suffers several inconsistencies: (1) the Lorentz force law of MCED violates Newton’s Third Law of Motion (N3LM) in case of stationary and divergent or convergent current distributions; (2) the general Jefimenko electric field solution of MCED shows two longitudinal far fields that are not waves; (3) the ratio of the electrodynamic energy-momentum of a charged sphere in uniform motion has an incorrect factor of 4/3. A consistent General Classical Electrodynamics (GCED) is presented that is based on (...) Whittaker’s reciprocal force law that satisfies N3LM. The Whittaker force is expressed as a scalar magnetic field force, added to the Lorentz force. GCED is consistent only if it is assumed that the electric potential velocity in vacuum, ’a’, is much greater than ’c’ (a ≫ c); GCED reduces to MCED, in case we assume a = c. Longitudinal electromagnetic waves and superluminal longitudinal electric potential waves are predicted. This theory has been verified by seemingly unrelated experiments, such as the detection of superluminal Coulomb fields and longitudinal Ampe`re forces, and has a wide range of electrical engineering applications. (shrink)

The force law of Maxwell’s classical electrodynamics does not agree with Newton’s third law of motion (N3LM), in case of open circuit magnetostatics. Initially, a generalized magnetostatics theory is presented that includes two additional physical fields B_Φ and B_l, defined by scalar functions. The scalar magnetic field B_l mediates a longitudinal Ampère force that balances the transverse Ampère force (aka the magnetic field force), such that the sum of the two forces agrees with N3LM for all stationary current distributions. Secondary (...) field induction laws are derived; a secondary curl free electric field E_l is induced by a time varying scalar magnetic field B_l, which isn’t described by Maxwell’s electrodynamics. The Helmholtz’ decomposition is applied to exclude E_l from the total electric field E, resulting into a more simple Maxwell theory. Decoupled inhomogeneous potential equations and its solutions follow directly from this theory, without having to apply a gauge condition. Field expressions are derived from the potential functions that are simpler and far field consistent with respect to the Jefimenko fields. However, our simple version of Maxwell’s theory does not satisfy N3LM. Therefore we combine the generalized magnetostatics with the simple version of Maxwell’s electrodynamics, via the generalization of Maxwell’s speculative displacement current. The resulting electrodynamics describes three types of vacuum waves: the Φ wave, the longitudinal electromagnetic (LEM) wave and the transverse electromagnetic (TEM) wave, with phase velocities respectively a, b and c. Power- and force theorems are derived, and the force law agrees with Newton’s third law only if the phase velocities satisfy the following condition: a >> b and b = c. The retarded potential functions can be found without gauge conditions, and four retarded field expressions are derived that have three near field terms and six far field terms. All six far field terms are explained as the mutual induction of two free fields. Our theory supports Rutherford’s solution of the 4/3 problem of electromagnetic mass, which requires an extra longitudinal electromagnetic momentum. Our generalized classical electrodynamics might spawn new physics experiments and electrical engineering, such as new photoelectric effects based on Φ- or LEM radiation, and the conversion of natural Φ- or LEM radiation into useful electricity, in the footsteps of dr. N. Tesla and dr. T.H. Moray. (shrink)

In a previous issue of Tijdschrift voor Filosofie, Filip Buekens argues that evolutionary psychology (EP), or some interpretations thereof, have a corrosive impact on our ‘manifest self-image’. Buekens wants to defend and protect the global adequacy of this manifest self-image in the face of what he calls evolutionary revisionism. Although we largely agree with Buekens’ central argument, we criticize his analysis on several accounts, making some constructive proposals to strengthen his case. First, Buekens’ argument fails to target EP, because his (...) notion of the ‘constitutive conditions’ of our attitudes is too wide and too extensive. Second, his defense of the global adequacy of our attitudes does not allow for sufficient differentiation to analyze the problem of potential self-refutation with respect to EP. Third, his account of knowledge about constitutive conditions, and its impact on our self-image, is problematic. We provide a more detailed explanation for the pervasiveness of evolutionary revisionism and other misconceptions about EP. Finally, we consider in what sense EP may legitimately affect our self-image, and whether it can truly inspire corrections of our view of human nature. (shrink)

Weakly Aggregative Modal Logic (WAML) is a collection of disguised polyadic modal logics with n-ary modalities whose arguments are all the same. WAML has some interesting applications on epistemic logic and logic of games, so we study some basic model theoretical aspects of WAML in this paper. Specifically, we give a van Benthem-Rosen characterization theorem of WAML based on an intuitive notion of bisimulation and show that each basic WAML system Kn lacks Craig Interpolation.

Johan van der Walt offers a modest conception of liberal democratic law as a groundless modus vivendi, while at the same time backing up this conception with an ambitious inquiry into the long history of Western metaphysics and the ways in which it shaped legal imagination. There are two main dimensions to my criticism of Van der Walt’s work, and they exactly divide between its modesty and ambition. I contend that the understanding of liberal democratic law as a modus (...) vivendi is too modest insofar as it avoids normative justification, whereas the philosophical storyline is too ambitious insofar as it amplifies the extent to which questions of legal and political theory are embedded in questions of ontology. (shrink)

Many philosophical discussions hinge on the concept of knowability. For example, there is a blooming literature on the so-called paradox of knowability. How to understand this notion, however? In this paper, we examine several approaches to the notion: the naive approach to take knowability as the possibility to know, the counterfactual approach endorsed by Edgington (1985) and Schlöder (2019) , approaches based on the notion of a capacity or ability to know (Fara 2010, Humphreys 2011), and finally, approaches that make (...) use of the resources of dynamic epistemic logic (van Benthem 2004, Holliday 2017). (shrink)

The paper deals with polymodal languages combined with standard semantics defined by means of some conditions on the frames. So, a notion of "polymodal base" arises which provides various enrichments of the classical modal language. One of these enrichments, viz. the base £(R,-R), with modalities over a relation and over its complement, is the paper's main paradigm. The modal definability (in the spirit of van Benthem's correspondence theory) of arbitrary and ~-elementary classes of frames in this base and in (...) some of its extensions, e.g., £(R,-R,R-1 ,_R-1), £(R,-R,=I=) etc., is described, and numerous examples of conditions definable there, as well as undefinable ones, are adduced. (shrink)

In this paper it is shown how simple texts that can be parsed in a Lambek Categorial Grammar can also automatically be provided with a semantics in the form of a Discourse Representation Structure in the sense of Kamp [1981]. The assignment of meanings to texts uses the Curry-Howard-Van Benthem correspondence.

We generalize and extend the class of Sahlqvist formulae in arbitrary polyadic modal languages, to the class of so called inductive formulae. To introduce them we use a representation of modal polyadic languages in a combinatorial style and thus, in particular, develop what we believe to be a better syntactic approach to elementary canonical formulae altogether. By generalizing the method of minimal valuations à la Sahlqvist–van Benthem and the topological approach of Sambin and Vaccaro we prove that all inductive (...) formulae are elementary canonical and thus extend Sahlqvist’s theorem over them. In particular, we give a simple example of an inductive formula which is not frame-equivalent to any Sahlqvist formula. Then, after a deeper analysis of the inductive formulae as set-theoretic operators in descriptive and Kripke frames, we establish a somewhat stronger model-theoretic characterization of these formulae in terms of a suitable equivalence to syntactically simpler formulae in the extension of the language with reversive modalities. Lastly, we study and characterize the elementary canonical formulae in reversive languages with nominals, where the relevant notion of persistence is with respect to discrete frames. (shrink)

This paper deals with the question of agency and intentionality in the context of the free-energy principle. The free-energy principle is a system-theoretic framework for understanding living self-organizing systems and how they relate to their environments. I will first sketch the main philosophical positions in the literature: a rationalist Helmholtzian interpretation (Hohwy 2013; Clark 2013), a cybernetic interpretation (Seth 2015b) and the enactive affordance-based interpretation (Bruineberg and Rietveld 2014; Bruineberg et al. 2016) and will then show how agency and intentionality (...) are construed differently on these different philosophical interpretations. I will then argue that a purely Helmholtzian is limited, in that it can account only account for agency in the context of perceptual inference. The cybernetic account cannot give a full account of action, since purposiveness is accounted for only to the extent that it pertains to the control of homeostatic essential variables. I will then argue that the enactive affordance-based account attempts to provide broader account of purposive action without presupposing goals and intentions coming from outside of the theory. In the second part of the paper, I will discuss how each of these three interpretations conceives of the sense agency and intentionality in different ways. (shrink)

In this dialogue P F and Jeito talk about nothing and something.

In this dialogue Daniel and Jeito talk about the not knowing of experiences of existing in the non existence.

Standard definitions of causal closure focus on where the causes in question are. In this paper, the focus is changed to where they are not. Causal closure is linked to the principle that no cause of another universe causes an event in a particular universe. This view permits the one universe to be affected by the other via an interface. An interface between universes can be seen as a domain that violates the suggested account of causal closure, suggesting a view (...) in which universes are causally closed whereas interfaces are not. On this basis, universes are not affected by other universes directly but rather indirectly. (shrink)

Smartphone use plays an increasingly important role in our daily lives. Philosophical research that has used first wave or second wave theories of extended cognition in order to understand our engagement with digital technologies has focused on the contribution of these technologies to the completion of specific cognitive tasks (e.g., remembering, reasoning, problem-solving, navigation).However, in a considerable number of cases, everyday smartphone use is task-unrelated. In psychological research, these cases have been captured by notions such as absent-minded smart-phone use (Marty-Dugas (...) et al., 2018) or smartphone-related inattentiveness (Liebherr et al., 2020).Given the prevalence of these cases, we develop a conceptual framework that can accommodate the functional and phenomenological characteristics of task-unrelated smartphone use. To this end, we will integrate research on second wave extended cognition with mind-wandering research and introduce the concept of ‘extended mind-wandering’. Elaborating the family resemblances approach to mind-wandering (Seli, Kane, Smallwood, et al., 2018), we will argue that task-unrelated smartphone use shares many characteristics with mind-wandering. We will suggest that an empirically informed conceptual analysis of cases of extended mind-wandering can enrich current work on digitally extended cognition by specifying the influence of the attention economy on our cognitive dynamics. (shrink)

Is an outcome where many people are saved and one person dies better than an outcome where the one is saved and the many die? According to the standard utilitarian justification, the former is better because it has a greater sum total of well-being. This justification involves a controversial form of moral aggregation, because it is based on a comparison between aggregates of different people's well-being. Still, an alternative justification—the Argument for Best Outcomes—does not involve moral aggregation. I extend the (...) Argument for Best Outcomes to show that any utilitarian evaluation can be justified without moral aggregation. (shrink)

The purpose of this article is to add to the debate on the normative status and legitimacy of indoctrination in education by drawing on the political philosophy of Benedict Spinoza (1632–1677). More specifically, I will argue that Spinoza’s relational approach to knowledge formation and autonomy, in light of his understanding of the natural limitations of human cognition, provides us with valuable hints for staking out a more productive path ahead for the debate on indoctrination. This article combines an investigation into (...) the early modern history of political ideas with a philosophical inquiry into a persistent conceptual problem residing at the heart of education. As such, the aim of the article is ultimately to offer an account of indoctrination less fraught with the dangers of epistemological and political idealism that often haunt rival conceptions. (shrink)

This paper argues that Rousseau’s lawgiver is best thought of as a fictional teacher of peoples. It is fictional as it reflects an idea that is entertained despite its contradictory nature, and it is contradictory in the sense that it describes ‘an undertaking beyond human strength and, to execute it, an authority that amounts to nothing’ (II.7; 192). Rousseau conceives of the social contract as a necessary device for enabling the transferal of individual power to the body politic, for subsuming (...) individual wills under the general will, and for aligning the good of the individual with the common good. For the social contract to be valid, however, it needs to be preceded by a desire to belong to a moral community that can induce people to join willingly, and that will grant legitimacy to the laws established. If the social contract is the machinery that makes the body politic function, the lawgiver is ‘the mechanic who invents the machine’ (II.7; 191). In this paper we will look closer at the pedagogical functions of Rousseau’s mythical lawgiver by first examining the relationship between the social contract, the general will and the lawgiver. Then, we aim to flesh out a pedagogical understanding of the figure of the lawgiver by way of the two educational dimensions of accommodation and transformation. Finally, we will argue for the importance of understanding Rousseau’s lawgiver as a fictional device allowing for the fundamental and enduring educational task of balancing between the preservation and renewal of society. (shrink)

Derek Parfit’s argument against the platitude that identity is what matters in survival does not work given his intended reading of the platitude, namely, that what matters in survival to some future time is being identical with someone who is alive at that time. I develop Parfit’s argument so that it works against the platitude on this intended reading.

Moral obligation and permissibility are usually thought to be interdefinable. Following the pattern of the duality definitions of necessity and possibility, we have that something’s being permissible could be defined as its not being obligatory to not do it. And that something’s being obligatory could be defined as its not being permissible to not do it. In this paper, I argue that neither direction of this alleged interdefinability works. Roughly, the problem is that a claim that some act is obligatory (...) or permissible entails that there is a moral law, whereas a negative claim that some act is not obligatory or not permissible does not. Nevertheless, one direction of the interdefinability can potentially be salvaged. I argue that, if we do not require the conceptual possibility of moral dilemmas, then there is a way to plausibly define obligation in terms of permissibility. I conclude that permissibility is the only feasible deontic primitive. (shrink)

In this paper Johan Dahlbeck sets out to propose a pedagogy of “as if,” seeking to address the educational paradox of how students can be influenced to approximate a life guided by reason without assuming that they are already sufficiently rational to adhere to dictates of practical reason. He does so by outlining a fictionalist account, drawing primarily on Hans Vaihinger's systematic treatment of heuristic fictions and on Spinoza's ideas about how passive affects can be made to strengthen reason. (...) Dahlbeck suggests that such an account can help us overcome the problem of assuming that reason needs to be enlisted as an instrument in the educational endeavor to live according to the guidance of reason. The reason this is so is that fictions can use passive affects that are prosocial and that thereby strengthen the sense of community necessary for laying a cooperative foundation for successful joint striving. Dahlbeck suggests further that exemplary teachers are crucial to this endeavor insofar as they can offer educational fictions as imaginative and temporary placeholders for the truth, allowing students to act “as if” they were already guided by reason. (shrink)

In this dialogue Zhuangzi and Jacob discuss nothing and something and their relation with God.

In my old manuscript “Formal Theology” that now is out as a preprint I show that science and theology can be founded upon the same set of basic assumptions. I now follow up this idea with the thought that Formal Theology may be used to ground also a religion. “Religion“, in this regard, as related to beliefs. I’m not going into any details, neither concerning the original manuscript, nor this new idea. The important thing, I think, is to explore if (...) this kind of “religion”, in any way, can be accommodated with “ordinary” religions. I leave more rigorous work to myself or to others for the future. (shrink)

W. V. Quine wished to restrict the interests that matter to those of actual people. Actual-Population Utilitarianism is a version of utilitarianism where, following Quine, only the interests of actual people matter. It is well known that ethical theories of this kind, which depend on what is actual, typically lead to normative variance. In this paper, I put forward a new objection to Actual-Population Utilitarianism. I present a case in which Actual-Population Utilitarianism prescribes choices that are worse for everyone whose (...) interests matter than the opposite choices. Moreover, I put forward a case in which total and average versions of Actual-Population Utilitarianism prescribe choices that are worse than the opposite choice for everyone (full stop). This objection also applies if the Actual-Population Restriction is combined with non-utilitarian views, given some minimal assumptions. (shrink)

According to Act Consequentialism, an act is right if and only if its outcome is not worse than the outcome of any alternative to that act. This view, however, leads to deontic paradoxes if the alternatives to an act are all other acts that can be done in the situation. A typical response is to only apply this rightness criterion to maximally specific acts and to take the alternatives to a maximally specific act to be the other maximally specific acts (...) that can be done in the situation. (This view can then be supplanted by a separate account for the rightness of acts that are not maximally specific.) This paper defends a rival view, Binary Act Consequentialism, where, for any voluntary act, that act is right if and only if its outcome is not worse than the outcome of not doing that act. Binary Act Consequentialism, which dates back to Jeremy Bentham, has few supporters. A number of seemingly powerful objections have been considered fatal. In this paper, I rebut these objections and put forward a positive argument for the view. (shrink)

The Black antislavery theorist Quobna Ottobah Cugoano (c.1757–c.1791) is increasingly recognized as a noteworthy figure in the history of philosophy. Born in present-day Ghana, Cugoano was enslaved at the age of 13 and shipped to Grenada, before being taken onwards to England, where the 1772 Somerset court ruling in effect freed him. His Thoughts and Sentiments on the Evil of Slavery [1787/1791] broke new ground by demanding the immediate end of the slave-trade and of slavery itself, without any compensation to (...) slaveholders. Notwithstanding this, Cugoano endorsed the legitimacy of penal enslavement on principled grounds – like many other abolitionists writing in late eighteenth-century Britain. “Every free community might keep slaves, or criminal prisoners in bondage” – and even sell them. Amidst the growing literature exploring Cugoano’s abolitionism, his paradoxical justification of penal slavery has bewildered commentators. Far from an offhand inconsistency, I argue that this justification is deeply embedded within his moral and legal philosophy; constraining his antislavery arguments while simultaneously serving retaliatory aims. His two-pronged principle of just punishment – the lex talionis (‘eye for an eye, bondage for bondage’) as tempered by mercy – sometimes demands penally enslaving colonial slaveholders and slave-traders in turn. Throughout, I compare Cugoano’s justification of penal enslavement with those of other early modern philosophers, especially Locke and Kant. This helps me position Cugoano within the history of philosophy, thus making his views more accessible to a wider philosophical audience. It also indicates just how deeply theories of punishment shaped philosophical thinking about penal bondage in the period. (shrink)

Here A, B, C, D, I, X and “Philosophy” discuss some features of the relation between identity and love.

K has a prepaid appointment with J. She wants to talk about philosophy even though the appointment is for psychotherapy. It seems she really just wants to leave and eventually she does. When she returns the subject is the meaning of life in a world without a God. Together they manage to sort some things out.

Moral wrongness comes in degrees. On a consequentialist view of ethics, the wrongness of an act should depend, I argue, in part on how much worse the act's consequences are compared with those of its alternatives and in part on how difficult it is to perform the alternatives with better consequences. I extend act consequentialism to take this into account, and I defend three conditions on consequentialist theories. The first is consequentialist dominance, which says that, if an act has better (...) consequences than some alternative act, then it is not more wrong than the alternative act. The second is consequentialist supervenience, which says that, if two acts have equally good consequences in a situation, then they have the same deontic status in the situation. And the third is consequentialist continuity, which says that, for every act and for any difference in wrongness δ greater than zero, there is an arbitrarily small improvement of the consequences of the act which would, other things being equal, not change the wrongness of that act or any alternative by more than δ. I defend a proposal that satisfies these conditions. (shrink)

In this dialogue Otto K. and The Professor talk about how experiences from war can affect subjects over generations.

In dit artikel wordt de dominante metafysische oriëntatie in de hedendaagse meta-ethiek kritisch onder de loep genomen. Het hedendaagse debat, dat zich voornamelijk richt op de vraag hoe moraliteit metafysisch gezien 'in de werkelijkheid past', wordt gekenmerkt door een reeks complexe en soms esoterische discussies die, zo wordt betoogd, weinig bijdragen aan ons filosofische begrip van ethiek. Deze focus op metafysische grondslagen heeft geleid tot een tunnelvisie, waarin het debat gevangen zit tussen steeds ingewikkeldere vormen van non-cognitivisme, herconceptualisaties van 'objectiviteit' (...) en metafysische acrobatiek. Als alternatief wordt voorgesteld de aandacht in de meta-ethiek te verleggen naar het domein van praktisch redeneren. Door ons te concentreren op de patronen van geldige praktische argumentatie en het soort overwegingen dat mensen daadwerkelijk overtuigt, kunnen we wellicht een beter inzicht krijgen in de aard van ethische normativiteit en de rol ervan in ons leven. Het artikel pleit voor een meer pragmatische en minder metafysisch beladen benadering van de meta-ethiek, die zich richt op de daadwerkelijke praktijken van moreel redeneren en argumenteren. (shrink)

In this paper we shed new light on the Argument from Disagreement by putting it to test in a computer simulation. According to this argument widespread and persistent disagreement on ethical issues indicates that our moral opinions are not influenced by any moral facts, either because no such facts exist or because they are epistemically inaccessible or inefficacious for some other reason. Our simulation shows that if our moral opinions were influenced at least a little bit by moral facts, we (...) would quickly have reached consensus, even if our moral opinions were affected by factors such as false authorities, external political shifts, and random processes. Therefore, since no such consensus has been reached, the simulation gives us increased reason to take seriously the Argument from Disagreement. Our conclusion is however not conclusive; the simulation also indicates what assumptions one has to make in order to reject the Argument from Disagreement. The simulation algorithm we use builds on the work of Hegselmann and Krause (J Artif Soc Social Simul 5(3); 2002, J Artif Soc Social Simul 9(3), 2006). (shrink)

Trước những lo ngại về khí hậu toàn cầu ngày càng gia tăng, các quốc gia trên thế giới đã ký kết thỏa thuận toàn cầu nhằm thể hiện sự cam kết mạnh mẽ để chung tay tìm kiếm các giải pháp sáng tạo để giảm thiểu phát thải khí nhà kính và tác động của nó đối với môi trường. Việt Nam là một trong những thành viên tích cực tham gia và có trách nhiệm, nhưng đồng thời cũng (...) là một nước bị ảnh hưởng nặng nề nhất của biến đổi khí hậu. Nhận thấy sự cần thiết phải giải quyết vấn đề biến đổi khí hậu, Việt Nam đang triển khai nghiên cứu việc thành lập thị trường các-bon trong nước, trong đó việc xây dựng và vận hành một hệ thống lưu ký các-bon được coi là một trụ cột quan trọng, trên cơ sở học hỏi kinh nghiệm từ các mô hình trên thế giới. Bài viết này đi sâu vào việc phân tích, đánh giá điều kiện, bối cảnh của Việt Nam và rút ra bài học kinh nghiệm từ các hệ thống lưu ký trên thế giới để đề xuất các giải pháp xây dựng một hệ thống lưu ký các- bon hiệu quả cho Việt Nam. (shrink)

Layunin ng pananaliksik na ito na makabuo ng Gabay sa Pagtuturo (Teacher’s Guide) bilang kagamitang makatutulong sa pagkatuto ng asignaturang Filipino. Gamit ang deskriptibong pananaliksik, natuklasan na 81% ng mga guro ang nagsabing makatutulong ang paglikha ng Gabay sa Pagtuturo (Teacher’s Guide). Ayon naman sa 95% ng mga mag-aaral, nararapat isama ang mga gawaing kaugnay ng panonood upang mas maging interaktibo at epektibo ang pagkatuto ng nabanggit panitikan. Batay sa mga inilahad na kinalabasan, nabatid ng mananaliksik na malaking bahagdan ng (...) mga guro at mag-aaral ng asignaturang Filipino ang nagsasabing may kahirapan ang pagtuturo at pagkatuto ng Noli Me Tangere bilang akdang pampanitkan sa ikaapat na markahan ng ika-9 na baitang. Sa makatuwid, ang pagkakaroon ng Gabay sa Pagtuturo (Teacher’s Guide) ng nabanggit na Obra Maestra ay makatutulong nang malaki hindi lamang sa guro bagkus ay pati na rin sa mag-aaral. (shrink)

Derek Parfit argues that fission is prudentially better for you than ordinary death. But is having more fission products with good lives prudentially better for you than having just one? In this paper, we argue that it is. We argue that, if your brain is split and the halves are transplanted into two recipients (who both have good lives), then it is prudentially better for you if both transplants succeed than if only one of them does (other things being equal). (...) This upshot rules out, among other things, that the prudential value of standing in the relation that matters in survival to multiple people is equal to their average well-being. (shrink)

To what extent should teachers promote the view from nowhere as an ideal to strive for in education? To address this question, I will use Mark Twain’s The Mysterious Stranger as an example, illustrating the stakes involved when the view from nowhere is taken to be an attainable educational ideal. I will begin this essay by offering a description of Thomas Nagel’s view from nowhere. Having done this, I will return to Twain’s story, providing some further examples of how access (...) to the view from nowhere comes to influence the educational process in different ways. I will then connect the educational question raised by Twain’s story to two radically different versions of the exemplar found in the works of Benedict de Spinoza: the philosopher and the prophet. These figures will help illustrate how the striving for philosophical truth can sometimes be educationally inapt, as education always needs to account for humans being human, all too human. (shrink)

In this paper we begin categorizing a plurality of possible worlds on the basis of permitting or not permitting ontologically different things to be causally connected. We build the work on the dual principle that all universes are causally closed either because no universe causes anything outside itself or because no universe has anything in it that is caused by another universe.

This paper is a partial review of the literature on ‘social preferences'. There are empirical findings that convincingly demonstrate the existence of social preferences, but there are also studies that indicate their fragility. So how robust are social preferences, and how exactly are they context dependent? One of the most promising insights from the literature, in my view, is an equilibrium explanation of mutually referring conditional social preferences and expectations. I use this concept of equilibrium, summarized by means of a (...) figure, to discuss a range of empirical studies. Where appropriate, I also briefly discuss a couple of insights from the (mostly parallel) evolutionary literature about cooperation. A concrete case of the Orma in Kenya will be used as a motivating example in the beginning. (shrink)

Nghiên cứu xác định các nhân tố ảnh hưởng đến Vận dụng kế toán môi trường của các doanh nghiệp sản xuất tỉnh Hưng Yên. Kết quả nghiên cứu xác định có 5 nhân tố ảnh hưởng, bao gồm: Lĩnh vực hoạt động sản xuất của doanh nghiệp; Nguồn lực tài chính; Nhận thức của chủ thể doanh nghiệp và Áp lực của các bên liên quan; Quy mô doanh nghiệp ảnh hưởng đến việc vận dụng kế toán môi trường. (...) Trong đó, nhân tố Lĩnh vực hoạt động sản xuất tác động mạnh nhất đến việc Vận dụng kế toán môi trường trong các doanh nghiệp sản xuất tại tỉnh Hưng Yên. (shrink)

Suppose that you prefer A to B, B to C, and C to A. Your preferences violate Expected Utility Theory by being cyclic. Money-pump arguments offer a way to show that such violations are irrational. Suppose that you start with A. Then you should be willing to trade A for C and then C for B. But then, once you have B, you are offered a trade back to A for a small cost. Since you prefer A to B, you (...) pay the small sum to trade from B to A. But now you have been turned into a money pump. You are back to the alternative you started with but with less money. This Element shows how each of the axioms of Expected Utility Theory can be defended by money-pump arguments of this kind. The Element also defends money-pump arguments from the standard objections to this kind of approach. This title is also available as Open Access on Cambridge Core. (shrink)

A speaker's use of a declarative sentence in a context has two effects: it expresses a proposition and represents the speaker as knowing that proposition. This essay is about how to explain the second effect. The standard explanation is act-based. A speaker is represented as knowing because their use of the declarative in a context tokens the act-type of assertion and assertions represent knowledge in what's asserted. I propose a semantic explanation on which declaratives covertly host a "know"-parenthetical. A speaker (...) is thereby represented as knowing the proposition expressed because that is the semantic contribution of the parenthetical. I call this view parentheticalism and defend that it better explains knowledge representation than alternatives. As a consequence of outperforming assertoric explanations, parentheticalism opens the door to eliminating the act-type of assertion from linguistic theorizing. (shrink)

Glucagon-like peptide-1 (GLP-1) receptor agonists, such as semaglutide, and dual GLP-1 and glucose-dependent insulinotropic polypeptide (GIP) receptor agonists, such as tirzepatide, have been found to be effective for treating obesity and diabetes, significantly reducing weight and the risk or predicted risk of adverse cardiovascular events. There is a global shortage of these medications that could last several years and raises questions about how limited supplies should be allocated. We propose a fair-allocation framework that enables evaluation of the ethics of current (...) practices and could guide governments, professional societies, and physicians in allocation decisions. (shrink)

Critical-Range Utilitarianism is a variant of Total Utilitarianism which can avoid both the Repugnant Conclusion and the Sadistic Conclusion in population ethics. Yet Standard Critical-Range Utilitarianism entails the Weak Sadistic Conclusion, that is, it entails that each population consisting of lives at a bad well-being level is not worse than some population consisting of lives at a good well-being level. In this paper, I defend a version of Critical-Range Utilitarianism which does not entail the Weak Sadistic Conclusion. This is made (...) possible by a fourth category of absolute value in addition to goodness, badness, and neutrality. (shrink)