A complete list of Finsler, Scott and Boffa sets whose transitive closures contain 1, 2 and 3 elements is given. An algorithm for deciding the identity of hereditarily finite Scott sets is presented. Anti-well-founded sets, i. e., non-well-founded sets whose all maximal ∈-paths are circular, are studied. For example they form transitive inner models of ZFC minus foundation and empty set, and they include uncountably many hereditarily finite awf sets. A complete list of Finsler and Boffa awf sets with 2 (...) and 3 elements in their transitive closure is given. Next the existence of infinite descending ∈-sequences in Aczel universes is shown. Finally a theorem of Ballard and Hrbáček concerning nonstandard Boffa universes of sets is considerably extended. (shrink)
This paper centers on Takashi Yagisawa’s book Worlds and Individuals, Possible and Otherwise (Oxford: 2010), which provides a novel and systematic analysis of modality and time. I consider the overall structure of Yagisawa’s treatment of modality and time, and discuss in detail the following three topics: (i) Possible worlds as modal indices, (ii) Trans-world identity, (iii) The claim that existence, unlike reality, is relative. My main conclusion is that Yagisawa's view of modality is driven by a strong primitivism, leading (...) to the endorsement of possibility, actuality, and presentness, but also possible worlds and times, as irreducible. The resulting view is saddled with the typical problems of primitivism on the one hand, and modal realism on the other. I criticize the view that existence is relative. (shrink)
Peace, compared to war, receives scant attention. Comprised of nine essays drawn from a 2009 conference, the essays collected in Visions of Peace: Asia and the West, edited by Takashi Shogimen and Vicki A. Spencer, reach wide and far to push against that neglect. The essays focus on different conceptions of and plans for political peace. Even more impressively, they generally avoid well-trodden paths like Kant’s Toward Perpetual Peace and instead draw upon Asian traditions and more obscure Western traditions. (...) The first essay, for instance, discusses the Greek goddess of peace and, contra various modern scholars, how peace was in fact an ideal for the Greeks and thought to be achievable. The final essay is on Jeremy... (shrink)
Mark Jago’s four arguments against Takashi Yagisawa’s extended modal realism are examined and shown to be ineffective. Yagisawa’s device of modal tense renders three of Jago’s arguments harmless, and the correct understanding of predications of modal properties of world stages blocks the fourth one.
The aim of this special issue is to give a new spin to the study of the impact of the liberal Wilsonian moment on Japan, with a focus on the interwar period in a broader historical span. The Wilsonian liberal international order encompasses its fledgling, formative, competitive, and maturity periods. In this special issue, the four articles deal with the first and second periods. Yutaka Harada and Frederick Dickinson adopt this longer perspective – not just President Wilson's moment of Fourteen (...) Points – each focusing on the vigor of Japan's industrialization and open economic policy in 1914–1931 and the basic continuity between the prewar and postwar periods in terms of normative and institutional commitments with the fledgling, if volatile, liberal international order such as those with the Versailles and Washington treaties after World War I, the war prohibition treaty of 1928, and the naval disarmament treaty of 1930. Ryoko Nakano and Takashi Inoguchi take up the re-examination of two tiny minorities of liberal academics, Yanaihara Tadao and Nambara Shigeru, who at most kept their integrity. Nakano recasts Yanaihara's academic life with its intellectual agony of believing in a national self-determination policy for Japanese colonies. Inoguchi underlines Nambara's stoic self-discipline under wartime dictatorship and active political involvement under US occupation regarding the newly drafted Japanese Constitution. An emphasis is placed on the considerable positive influence of Wilsonian ideas on Japan, an influence that faded in the late 1930s, but re-emerged with considerable vigor after 1945. (shrink)
(First paragraphs.) — The notion of “mental time” refers to the experience and awareness of time, including that of past, present, and future, and that of the passing of time. This experience and awareness of time raises a number of puzzling questions. How do we experience time? What exactly do we experience when we experience time? Do we actually experience time? Or do we infer time from something in, or some aspect of our experience? And so forth. These and many (...) related questions in the “philosophy of mental time”, the topic of this special issue of the Annals of the Japan Association for Philosophy of Science, are not purely philosophical questions. Or at least, they are not likely to be satisfactorily answered by philosophers alone. Rather, they also need the input of neuroscientists, psychologists, physicists, linguists, and others. And conversely, answers to these questions may have implications outside the scope of philosophy. The papers in this special issue illustrate this inherent multi- or interdisciplinarity of the philosophy and science of mental time. In this theme introduction, we want to give a few more examples to illustrate this interdisciplinarity, but also to point out that much of the field is still wide open—that is, these illustrations raise more questions than answers. (shrink)
Modal realism -- Time, space, world -- Existence -- Actuality -- Modal realism and modal tense -- Transworld individuals and their identity -- Existensionalism -- Impossibility -- Proposition and relief -- Fictional worlds -- Epistemology.
In his book Worlds and Individuals, Possible and Otherwise (2010), Takashi Yagisawa presents and argues for a novel and imaginative version of modal realism. It differs both from Lewis’s modal realism (Lewis 1986) and from actualists’ ersatz accounts (Adams 1974; Sider 2002). In this paper, I’ll present two arguments, each of which shows that Yagisawa’s metaphysics is incoherent. The first argument shows that the combination of Yagisawa’s metaphysics with impossibilia leads to triviality: every sentence whatsoever comes out true. This (...) is so even if Yagisawa accepts a paraconsistent notion of logical consequence, on which contradictions do not entail arbitrary conclusions. The second argument is independent of Yagisawa’s acceptance of impossibilia. It shows that Yagisawa’s metaphysics of possible worlds is incoherent. Using ordinary modal reasoning, I derive a contradiction from Yagisawa’s account of possible worlds. (shrink)
Sherlock Holmes is a fictional individual. So is his favorite pipe. Our pre-theoretical intuition says that neither of them is real. It says that neither of them really, or actually, exists. It also says that there is a sense in which they do exist, namely, a sense in which they exist “in the world of” the Sherlock Holmes stories. Our pre-theoretical intuition says in general of any fictional individual that it does not actually exist but exists “in the world of” (...) the relevant fiction. I wish to defend this pretheoretical intuition. To do so, I need to defend two claims: that fictional individuals do not actually exist, and that they exist “in the world of” the relevant fiction. The aim of this paper is to defend the first claim. (shrink)
In important ways, Clark's (HPM) approach parallels the research agenda we have been pursuing. Nevertheless, we remain unconvinced that the HPM offers the best clue yet to the shape of a unified science of mind and action. The apparent convergence of research interests is offset by a profound divergence of theoretical starting points and ideal goals.
This study is an attempt to construct a quantitative link for international regimes with global leadership. The country's willingness to lead in solving global issues as the first mover in the formation of an international regime is measured and characterized by analyzing their ratification behavior in multilateral conventions deposited to the United Nations which shape of the global community. For this purpose, a set of quantitative indicators, the Index of Global Leadership Willingness and the Global Support Index, was defined and (...) calculated for each country based on its actual ratification year data for 120 multilateral conventions covering global issues such as peace and security, environment, commerce, communication, intellectual property protection, human rights, and labor. By proposing a framework of global leadership analysis, the study seeks to provide an empirical testing of the transformation of global governance towards cooperation without hegemony paradigm. The paper analyses changes in the leadership willingness indices of selected country groups, such as the G3, G7/8, and G20, over the century and finds that the will to drive the international agenda of these groups of leaders is in decline. Moreover, our study provides evidence to argue that our current world is actually without consistent global leadership across domains of the world affairs. Although several countries still show visible leadership in specific policy domains, such as environment and intellectual property, neither the G7/8 nor the G20 was playing a comparable role to those performed by the G3 a hundred years ago. (shrink)
Synthetic approaches to social interaction support the development of a second-person neuroscience. Agent-based models and psychological experiments can be related in a mutually informing manner. Models have the advantage of making the nonlinear brainenvironmentbrain system as a whole accessible to analysis by dynamical systems theory. We highlight some general principles of how social interaction can partially constitute an individual's behavior.
This article provides an experimental analysis of attitude toward imprecise and variable information. Imprecise information is provided in the form of a set of possible probability values, such that it is virtually impossible for the subjects to guess or estimate, which one in the set is true or more likely to be true. We investigate how geometric features of such information pieces affect choices. We find that the subjects care about more features than the pairs of best-case and worst-case, which (...) is a counter-evidence to the well-known models, maximin and α-maximin. We find that presence of nonextreme points in the set affects choice, which suggests that attitude toward imprecision is ‘nonlinear.’ We also obtain an observation, though not significant, that information pieces have a complementarity that may not be explained by the Bayesian view. (shrink)
Affective computing research has advanced emotion recognition systems using facial expressions, voices, gaits, and physiological signals, yet these methods are often impractical. This study integrates mouse cursor motion analysis into affective computing and investigates the idea that movements of the computer cursor can provide information about emotion of the computer user. We extracted 16–26 trajectory features during a choice-reaching task and examined the link between emotion and cursor motions. Participants were induced for positive or negative emotions by music, film clips, (...) or emotional pictures, and they indicated their emotions with questionnaires. Our 10-fold cross-validation analysis shows that statistical models formed from “known” participants could predict nearly 10%–20% of the variance of positive affect and attentiveness ratings of “unknown” participants, suggesting that cursor movement patterns such as the area under curve and direction change help infer emotions of computer users. (shrink)
Modal realists should fashion their theory by postulating\nand taking seriously the modal equivalent of tense, or\n_modal tense_. This will give them a uniform way to\nrespond to five different objections, one each by Skyrms,\nQuine, and Peacocke, and two by van Inwagen, and suggest a\nnon-Lewisian path to modal realism.
In Art Incorporated, you seek to debunk the myth of the artworld as autonomous of the market forces of global capitalism. Instead, you argue, works of art have become yet another commodity. However, one could say that works of art have always been commodities as well as objects of aesthetic appreciation. What makes the problem pertinent now, in the age of artists like Takashi Murakami, Jeff Koons and Damien Hirst?
The recent renewed interest in the foundation of quantum statistical mechanics and in the dynamics of isolated quantum systems has led to a revival of the old approach by von Neumann to investigate the problem of thermalization only in terms of quantum dynamics in an isolated system [1, 2]. It has been demonstrated in some general or concrete settings that a pure initial state evolving under quantum dynamics indeed approaches an equilibrium state [3–9]. The underlying idea that a single pure (...) quantum state can fully describe thermal equilibrium has also become much more concrete [10–12]. (shrink)
Deep theorizing about possibility requires theorizing about possible objects. One popular approach regards the notion of a possible object as intertwined with the notion of a possible world. There are two widely discussed types of theory concerning the nature of possible worlds: actualist representationism and possibilist realism. They support two opposing views about possible objects. Examination of the ways in which they do so reveals difficulties on both sides. There is another popular approach, which has been influenced by the philosophy (...) of Alexius Meinong. The Meinongian approach is relevant to theorizing about possible objects because it attempts to construct a general theory of objects other than ordinary concrete existing objects. Independently of the debate about the nature of possible worlds or about Meinongianism, it is not always as straightforward as it may at first appear to determine whether putative possible objects are indeed possible. Another category of object similar to that of a possible object is the category of a fictional object. Although initially attractive, the idea that fictional objects are possible objects should not be accepted blindly. An important instance of theoretical usefulness of possible objects is their central role in the validation of two controversial theorems of a simple quantified modal logic. (shrink)
Creationism is the view that fictional individuals such as Sherlock Holmes are contingently existing abstracta that come about due to the intentional activities of authors. Author-essentialism is the stronger thesis that the author responsible for bringing a fictional individual into existence at a time is essential to the existence of that individual. Takashi Yagisawa has recently attacked this view on the following grounds: author-essentialists rely on an ontological parallelism between fictional individuals and whole works of fiction, but this parallelism (...) fails to obtain. I here argue that Yagisawa’s grounds are weak. (shrink)