This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and (...) made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

How often does an interest or pleasure in your life become something that has to be managed, given a hierarchical position amongst other tasks, and thus becomes a chore alongside other chores? When content and possibility are stripped by scheduling and the demands of capitalist required labour mean that free play or time required for speculative and/or creative thought is removed in the interests of deadlines, what happens to the compassionate, generous and intimate functioning of thought and life? This paper (...) considers how Guattari argues that subjectivities are produced and organised by what he describes as machinic assemblages. Machinic assemblages are those aspects of life that operate to regulate the affective powers of life. Guattari's work on activities such as art making, game play, music and performance provides ways to consider the labour of subjectivity outside of work. I ask the reader to consider what the notion and motivation for play signal. Arguing that a singular life at play is the collective event of play, I describe play as a mediatising form for the production of subjectivity. The play field situates and directs the machinic assemblage of subjectivation through its own forms of mediatisation. (shrink)

Although Colman's criticisms of orthodox game theory are convincing, his assessment of progress toward construction of an alternative is unnecessarily restrictive and pessimistic. He omits an important multidisciplinary literature grounded in human evolutionary biology, in particular the existence and function of social emotions experienced when facing some strategic choices. I end with an alternative suggestion for modifying orthodox game theory.

By bringing feminist science studies scholar Donna J. Haraway’s A manifesto for cyborgs (1985) and Situated knowledges (1988) in line with contemporary critical new materialist thought (see Colman & Van der Tuin, 2024; Dolphijn & Van der Tuin, 2012; Geerts, 2022), this critical pedagogical and philosophical think piece tackles the problematic of Anthropocenic disruptions of the planetary biosphere for critical pedagogies and higher education (also see Carstens, 2016). It additionally encourages its readers to think through their own pedagogical conceptions (...) and praxes by means of irruptive (Geerts & Carstens, 2024; Koro-Ljungberg, 2015) selfreflection- stimulating questions. Our situated – and thus limited and open-ended – response to this all-encompassing Anthropocenic crisis is rooted in a rethinking of Harawayan cyborgian and situated knowledges and the critical pedagogical lessons drawn from the latter. Rereading Haraway’s work through contemporary critical new materialist and related scholarship reveals that it already contained an ecofeminist onto-epistemological shift toward more-than-human agency and relationality. This shift has major consequences for all things critical pedagogical and educational, as our pedagogical thinking-doings are deeply embedded in today’s crisis-ridden lifeworld. This rereading exercise furthermore underlines the necessity of an updated critical new materialist pedagogical praxis for learning and teaching, inspired by Harawayan ecofeminism, that takes the entanglements between human, dehumanised, and more-than-human actors seriously. (shrink)

The variety DMM of De Morgan monoids has just four minimal subvarieties. The join-irreducible covers of these atoms in the subvariety lattice of DMM are investigated. One of the two atoms consisting of idempotent algebras has no such cover; the other has just one. The remaining two atoms lack nontrivial idempotent members. They are generated, respectively, by 4-element De Morgan monoids C4 and D4, where C4 is the only nontrivial 0-generated algebra onto which finitely subdirectly irreducible De Morgan monoids may (...) be mapped by noninjective homomorphisms. The homomorphic preimages of C4 within DMM constitute a proper quasivariety, which is shown to have a largest subvariety U. The covers of the variety within U are revealed here. There are just ten of them. In exactly six of these ten varieties, all nontrivial members have C4 as a retract. In the varietal join of those six classes, every subquasivariety is a variety—in fact, every finite subdirectly irreducible algebra is projective. Beyond U, all covers of [or of ] within DMM are discriminator varieties. Of these, we identify infinitely many that are finitely generated, and some that are not. We also prove that there are just 68 minimal quasivarieties of De Morgan monoids. (shrink)

There is an extensive literature on time travel in both philosophy and physics. Part of the great interest of the topic stems from the fact that reasons have been given both for thinking that time travel is physically possible—and for thinking that it is logically impossible! This entry deals primarily with philosophical issues; issues related to the physics of time travel are covered in the separate entries on time travel and modern physics and time machines. We begin with the definitional (...) question: what is time travel? We then turn to the major objection to the possibility of backwards time travel: the Grandfather paradox. Next, issues concerning causation are discussed—and then, issues in the metaphysics of time and change. We end with a discussion of the question why, if backwards time travel will ever occur, we have not been visited by time travellers from the future. (shrink)

In a recent article in this journal, Duijf claims to have proved that team reasoning can be viewed as a payoff transformation. His formalization mimics team reasoning but ignores its essential agency switch. The possibility of such a payoff transformation was never in doubt, does not imply that team reasoning can be viewed as a payoff transformation, and makes no sense in a game in which payoffs represent players’ utilities. A theorem is proved here that a simpler and more intuitive (...) payoff transformation can mimic any theory that predicts what strategies players will choose in a well-defined game. (shrink)

Le névrosé est un homme qui demeure infantile et s'enferme dans un refuge imaginaire. Sans courage, il est prisonnier des angoisses primitives. A partir d'une compréhension de la relation fondamentale entre l'angoisse et le courage s'éclaire la valeur proprement humaine de l'amour humain, de la rencontre, de la confrontation et de la liaison entre le Moi et le Toi comme une existence sous la forme du Nous - la „liebende Wirheit” dont parle Binswanger. Le mysterium tremendum de l'amour personnel pour (...) un ‘étranger’ - qui n'est donc n i la mère n i le père - est un risque existentiel par essence, c'est le franchissement du seuil vers une forme nouvelle de l'existence du Dasein. C'est la raison pour laquelle la route vers le Toi passe par l'angoisse et que l'engagement dans cette voie présuppose un Moi libre, courageux et responsable. C'est ce que nous apprend déjà le dicton : „Qui veut épouser la fille du roi doit d'abord supporter le tremblement de l'angoisse”. Le courage qui est ici nécessaire s'accomplit dans la liberté heureuse de ce qu'on a appelé le „discours-révélant” -par lequel le „langage-du-désir” de notre inconscience originelle est assumé et qu'il accomplit sa signification. (shrink)

A many-valued (aka multiple- or multi-valued) semantics, in the strict sense, is one which employs more than two truth values; in the loose sense it is one which countenances more than two truth statuses. So if, for example, we say that there are only two truth values—True and False—but allow that as well as possessing the value True and possessing the value False, propositions may also have a third truth status—possessing neither truth value—then we have a many-valued semantics in the (...) loose but not the strict sense. A many-valued logic is one which arises from a many-valued semantics and does not also arise from any two-valued semantics [Malinowski, 1993, 30]. By a ‘logic’ here we mean either a set of tautologies, or a consequence relation. We can best explain these ideas by considering the case of classical propositional logic. The language contains the usual basic symbols (propositional constants p, q, r, . . .; connectives ¬, ∧, ∨, →, ↔; and parentheses) and well-formed formulas are defined in the standard way. With the language thus specified—as a set of well-formed formulas—its semantics is then given in three parts. (i) A model of a logical language consists in a free assignment of semantic values to basic items of the non-logical vocabulary. Here the basic items of the non-logical vocabulary are the propositional constants. The appropriate kind of semantic value for a proposition is a truth value, and so a model of the language consists in a free assignment of truth values to basic propositions. Two truth values are countenanced: 1 (representing truth) and 0 (representing falsity). (ii) Rules are presented which determine a truth value for every proposition of the language, given a model. The most common way of presenting these rules is via truth tables (Figure 1). Another way of stating such rules—which will be useful below—is first to introduce functions on the truth values themselves: a unary function ¬ and four binary functions ∧, ∨, → and ↔ (Figure 2).. (shrink)

In an earlier paper I argued that time travellers cannot change the past: alleged models of changing the past either fall into contradiction or else involve avoiding, not changing, the past. Goddu has responded to my argument, maintaining that his hypertime model involves time travellers changing (not avoiding) the past. In the present paper I first discuss what would be required to substantiate the claim that a given model involves changing rather than avoiding the past. I then consider Goddu's hypertime (...) model and an earlier model due to Meiland. I argue that neither author does what would be required to substantiate the claim that the model involves changing (not avoiding) the past. I go on to give reasons for the stronger claim that no-one can present a coherent model and also substantiate the claim that it involves changing (not avoiding) the past. (shrink)

Although his subject matter is far from abstract and his arguments comparatively free from obscurity, Bernard Mandeville has generally been acknowledged a difficult philosopher. It is not hard to see why. First, Mandeville deliberately sets out to generate paradoxes. Secondly, he is not a systematic writer. His views are expounded and developed in a number of works of which The Fable of the Bees is only the best known. Thirdly, and most important, he is not solely a philosopher, but also (...) a satirist. His satire is intertwined with his purely philosophical theories and his style is often highly ironic. Any interpretation of Mandeville must consider his philosophical and his satirical intentions. (shrink)

Het Leids-Haags Allegorieënlexicon toont nieuwe perspectieven op de maatschappelijke werkelijkheid met een actuele duiding van vijftig kernthema’s uit de wetenschap. De auteurs zijn de duale promovendi en hun promotores van Leiden University Dual PhD Centre The Hague. Ze worden daarbij geïnspireerd door de metafoor van de grot van Plato: Waar ben ik? Waar sta ik? Welk beeld zie ik? Hoe kan ik dat begrijpen? Er ontstaan beeldende voorstellingen van begrippen waarin op zoek wordt gegaan naar de centrale gedachten die ten (...) grondslag liggen aan die begrippen. Zo wordt de veranderende wereld waargenomen met het besef dat we nooit kunnen weten of we de gehele werkelijkheid kunnen zien of begrijpen. De waarneming is afhankelijk van de zichtpositie die de waarnemer inneemt. Zo ontstaan verbeeldingen van waarnemingen van ons menselijk bestaan. Zoals: assimilatie, creativiteit, gender, kunstenaarschap, magistraat, participatie, regels, tragedie en verzorgingsstaat. Eerst wordt actuele literatuur besproken. Daarna volgt discussie. Tenslotte neemt de auteur positie in. Met bijdragen van promotores Wilfried Admiraal, Ingrid van Biezen, Hans Borgman, Paul Cliteur, Jaap van den Herik, Rikki Holtmaat, Willem Otterspeer, Jos Raadschelders, Robert Tijssen, Wim Willems en promovendi. (shrink)

These comments are concerned to show that direct realism about perception is quite compatible with the physical and neuroscientific story. Use is made of D.M. Armstrong's account of perception as coming to believe by means of the senses. What we come to believe about is the bird on the gatepost, say. So the account is direct realist. But it is obviously compatible with the scientific story which explains how the coming to believe comes about. We can also identify beliefs with (...) brain states. (shrink)

We analyse the relationship between applicability and effectiveness of legal norms from a philosophical perspective. In particular, we distinguish between two concepts of applicability. The external applicability of norms refers to institutional duties; a norm N is externally applicable if and only if a judge is legally obliged to apply N to some case c. Internal applicability refers instead to the sphere of validity of legal norms. A norm N is internally applicable to actions regulated by its sphere of validity. (...) We also explore the consequences of a thesis which maintains that applicability restricts the concept of effectiveness, so that only applicable norms can be considered effective. Our analysis illustrates that a proper reconstruction of the concept of applicability is of great importance not only for understanding the concept of effectiveness but also for providing insight into the nature of law. (shrink)

In spite of the seeming heterogeneity of topics in its title - Revolutions, Systems, and Theories - this volume purports to be something more than a random collection of Essays in Political Philosophy. The Colloquium of the Philosophy Department of the University of Western Ontario (29-31 Octo­ ber, 1971) at which initial versions of the first eight papers were delivered was entitled 'Political Theory'; and while the organizers anticipated and indeed welcomed topicality in the issues accorded priority arid in the (...) empirical evidence invoked, they were also hoping for a reasonably comprehensive explorat ion of some of the central issues of political philosophy. For this reason it was quickly decided that in such a field a philosophical focus on clarification of ordering concepts required the suppIement - and test - of researches into more particular subject maUers by social scientists. Thus, to speak in general terms (where the specializatlons and their taxonomies multi­ ply fissiparously!), contributors include political scientists, economists and sociologists (Barnard, Baston, Tullock, Rapoport) as well as philosophers (Scriven, Morgenbesser, Braybrooke, TayIor), and juxtaposed as proponents and commentators ·to generate exchanges across disciplinary frontiers. While the five additional invited papers are alI by professional philosophers, they extend the original Colloquium either by continuing controversy on its funda­ mental issues (e. g., Rubinoff, Nielsen, Roy) or by their continued explorations in what are acknowledged to be boundary areas (e. g., Schick, Wartofsky). The greatest topical emphasis is that on revolution. (shrink)