Logic is usually thought to concern itself only with features that sentences and arguments possess in virtue of their logical structures or forms. The logical form of a sentence or argument is determined by its syntactic or semantic structure and by the placement of certain expressions called “logical constants.”[1] Thus, for example, the sentences Every boy loves some girl. and Some boy loves every girl. are thought to differ in logical form, even though they share a common syntactic and semantic (...) structure, because they differ in the placement of the logical constants “every” and “some”. By contrast, the sentences Every girl loves some boy. and Every boy loves some girl. are thought to have the same logical form, because “girl” and “boy” are not logical constants. Thus, in order to settle questions about logical form, and ultimately about which arguments are logically valid and which sentences logically true, we must distinguish the “logical constants” of a language from its nonlogical expressions. (shrink)

হেগেল তাঁর “লজিক এজ মেটাফিজিক্স” নামক গ্রন্থাংশের শুরুতেই অল্প ব্যবধানে যুক্তিবিদ্যার দৃশ্যত দুটি ভিন্ন সংজ্ঞা প্রদান করেন। এ দুটি সংজ্ঞানুযায়ী, যুক্তিবিদ্যা বিশুদ্ধ ধারণার বিজ্ঞান হলেও এটিকে চিন্তার বিজ্ঞান হিসেবেও আখ্যায়িত করা যেতে পারে। কিন্তু প্রশ্ন হলো, হেগেল একই গ্রন্থাংশে অল্প ব্যবধানে যুক্তিবিদ্যার এ যে দুটি ভিন্ন সংজ্ঞা প্রদান করলেন, তার কারণ কী? বা এ দুটি সংজ্ঞার মধ্যে সম্পর্কই বা কী? তারা কি একে অপরকে সমর্থন করে? বা তারা কি আসলেই ভিন্ন দুটি সংজ্ঞা? নাকি একই বক্তব্যের দুটি ভিন্ন প্রকাশ? এ প্রশ্নগুলোর (...) উত্তর খোঁজাই বর্তমান প্রবন্ধের মূল উদ্দেশ্য। এক কথায়, প্রবন্ধের মূল উদ্দেশ্য হচ্ছে, হেগেল প্রদত্ত যুক্তিবিদ্যার দুটি ভিন্ন সংজ্ঞার মধ্যকার সম্পর্ক নির্ণয়। প্রবন্ধে লেখক দেখিয়েছেন যে, হেগেল প্রদত্ত যুক্তিবিদ্যার সংজ্ঞা দুটির মধ্যে পারস্পরিক যে সম্পর্ক তা কোনোভাবেই সাংঘর্ষিক বা বর্জনমূলক নয়। বরং এ সম্পর্ক রূপান্তরমূলক বা স্পষ্টীকরণমূলক বলে সংজ্ঞাদ্বয়কে একই মুদ্রার এপিঠ ওপিঠ বললেও অত্যুক্তি হবে না।. (shrink)

Throughout the years a lively debate has flourished around niche construction theory. A source of contention has been the distinction between narrow and broad construction activities proposed by critics. Narrow construction is limited to the production of evolutionarily advantageous artifacts while broad construction refers to construction activities that have an impact on the ecosystem but offer little or negative adaptive feedback to the organisms. The first has been acknowledged as relevant to evolutionary studies in that it increases species’ fitness and (...) it is genetically inherited, while the second has been dismissed as accessory and irrelevant. I argue this distinction is unsatisfactory and leads to misinterpreting the achievements of niche construction theory. Instead I propose a three-tier categorization of constructionism (literal, analogical, and figurative) based on the analysis of the metaphor of construction itself. I show metaphors are not a mere rhetorical device but represent an instrument through which theories evolve and introduce new elements. In fact through this categorization I will be able to highlight two innovative features of constructionism: the introduction of reciprocal causation as a main causal framework and the expansion of studies about evolution to large frameworks involving multiple levels of biological organization. I will show their role in each of the three kinds of construction in order to offer a better understanding of the distinctive features of the niche construction approach. The innovations introduced encourage the revision of the concepts of adaptation and enlarge the range of phenomena to be considered relevant in biological studies. (shrink)

Proposes a new way of understanding the nature of metaphysics, focusing on nonreductionist emergence theory, both in ancient and modern philosophy, as well as in contemporary philosophy of science.

This paper opposes universal mereological composition (UMC). Sider defends it: unless UMC were true, he says, it could be indeterminate how many objects there are in the world. I argue that there is no general connection between how widely composition occurs and how many objects there are in the world. Sider fails to support UMC. I further argue that we should disbelieve in UMC objects. Existing objections against them say that they are radically unlike Aristotelian substances. True, but there is (...) a stronger objection. This is that they are characterized by no properties, and so fail to be like anything – even themselves. (shrink)

Dialectics is essentially the method or logos in which categories of forms are combined to explain things. Dialectics was developed because reason faces difficulties in grasping the sensible world. Practical wisdom is knowledge about some things or certain person or persons because of its variable objects. But it is not entirely specific or only about a particular thing and without universality in any sense. As one kind of dialectics, it combines various elements to accord with the right logos, similar to (...) the way in which various forms are combined in theory. Therefore practical wisdom as a combination or polymerization of elements can be regarded as another kind of logic, namely practical logic or dialectics. (shrink)

The present essay aims to throw light on the study of dialectical thinking from a cultural-historical perspective. Different forms of dialectic are articulated as ideal types, including the Greek dialectic, the Hegelian dialectic, the contemporary German negative dialectic, the Chinese dialectic, and the Indian negative dialectic. These influential cultural products in the history of the East and the West, articulated as ideal types, serve as constellations that could facilitate further empirical studies on dialectical thinking. An understanding of the complexity of (...) these constellations reveals the pitfalls of investigating dialectical thinking without an appropriate conceptualization of the research target. With the ideal types of dialectic as "figure," and Vygotsky's thesis of the cultural-historical origin of higher psychological processes as "ground," we explore possibilities for further lines of inquiry on dialectical thinking. Adhering to the Scribnerian multilevel scheme that reconstructs Vygotsky's thesis, and returning to the core ideas of Vygotsky himself, we discover new, meaningful questions about the study of dialectical thinking. In the research area of "culture and cognition," consideration of a cultural-historical perspective appears to be both necessary and promising. (shrink)

From a phenomenological perspective of game-space and horizon, this paper tries to make a deconstructive reading of Hegel's "two galleries", namely, "the gallery of opinions" and "the gallery of knowledge", which are mentioned in the introduction of Hegel's Lectures on the History of Philosophy. The reading shows that the Game-space or the ab-gruendiger Grund of the Hegelian concept of philosophical history lies in an originally differencing space that is keeping in absence, which is called by Edmund Husserl and Jacques Derrida (...) "the gallery of Dresden". (shrink)

The project of naturalising phenomenology is examined within the larger context of the philosophy of science. Transcendental phenomenology, as defended by Husserl, in opposition to the naturalistic enterprise, reflects a particular way of thinking about philosophy and its relationship to the empirical sciences that stands as an obstacle to the project of naturalisation. This paper develops a critique of a basic assumption made in this conception of philosophy, namely that it is possible to ask and answer questions concerning knowledge in (...) the abstract, prior to and independently of the various investigative contexts which are the immediate concern of practicing scientists. To successfully naturalise phenomenology, we need to abandon this conception of philosophy. (shrink)

ABSTRACT: This article focuses on the role that Hegels discussion of Hegel and Peirce by claiming that the second book of HegelThe Doctrine of Essence,s attempt to account for the experimental and turbulent character of human experience, a character that Peirce would term While Pierce remained dissatisfied with Hegels detailed understanding of Hegel.

This article examines two problems: the role of argument in philosophy, vis-àÏs other philosophical activities; and the nature of argument in philosophy, vis-à-vis argument in other fields. The examination proceeds by reference to the notion of dialectic, which is regarded by some as offering an alternative to argument, and by reference to Hegel's Preface to the Phenomenology of Spirit, which explicitly discusses these very issues. The latter is reconstructed as the argument that philosophy is dialectical in part because it is (...) pluralistic, conceptual, concrete, self-reflective, spiritual, systematic, negative, and self-referential, and in part because it sublimates the opposition between truth and falsity, method and result, change and permanence, form and content, and subject and predicate. (shrink)

To be a realist about modality, need one claim that more exists than just the various objects and properties that populate the world—e.g. worlds other than the actual one, or maximal consistent sets of propositions? Or does the existence of objects and properties by itself involve the obtaining of necessities (and possibilities) in re? The latter position is now unpopular but not unfamiliar. Aristotle held that objects have essences, and hence necessarily have certain properties. Recently it has been argued that (...) the identity of any property is tied to the natural laws in which it figures, which entails that the occurrence of properties involves the obtaining of nomological necessities ([24], pp. 206-33 and 234-60; [23]; cf. [25] and [6]). Somewhat less recently, Wittgenstein ([28], p. 168) worried that the reality of at least some properties—precise shades of colors being a prime example—involved the obtaining in re of certain impossibilities. This paper argues that Wittgenstein’s worries were right, and not just concerning some properties, but all properties whatever. That there are objects and properties in the world at all, then, amounts to there obtaining modal states of affairs. This argument supplements, rather than replaces, the others. The position on property incompatibility advanced here actually helps defend Aristotelian essentialism against epistemological objections, or so I have argued ([15]). And while this paper’s position on property incompatibility diverges from the idea that a property’s nomic profile is essential to it—more on this in the next section—it is at least compatible with the thought that the necessity involved in the laws of nature enters into ontology at the ground level. (shrink)