In this paper, we study two companions of a logic, viz., the left variable inclusion companion and the restricted rules companion, their nature and interrelations, especially in connection with paraconsistency. A sufficient condition for the two companions to coincide has also been proved. Two new logical systems—intuitionistic paraconsistent weak Kleene logic (IPWK) and paraconsistent pre-rough logic (PPRL)—are presented here as examples of logics of left variable inclusion. IPWK is the left variable inclusion companion of intuitionistic propositional logic and is also (...) the restricted rules companion of it. PPRL, on the other hand, is the left variable inclusion companion of pre-rough logic but differs from the restricted rules companion of it. We have discussed algebraic semantics for these logics in terms of Płonka sums. This amounts to introducing a contaminating truth value, intended to denote a state of indeterminacy. (shrink)

Papers presented at two national seminars on Language science and cognition and Epistemology and cognition held at Hyderabad.

In this paper, we study some classes of logical structures from the universal logic standpoint, viz., those of the Tarski- and the Lindenbaum-types. The characterization theorems for the Tarski- and two of the four different Lindenbaum-type logical structures have been proved as well. The separations between the five classes of logical structures, viz., the four Lindenbaum-types and the Tarski-type have been established via examples. Finally, we study the logical structures that are of both Tarski- and a Lindenbaum-type, show their separations, (...) and end with characterization, adequacy, minimality, and representation theorems for one of the Tarski–Lindenbaum-type logical structures. (shrink)

David Hume’s Treatise on Human Nature famously fell `deadborn from the press’ because it was too far ahead of its time. Basu’s book is one of a number published in recent years that suggest we are at last ready to put its precepts into action.1 Modern game theory provides a framework that makes Hume’s insights genuinely applicable, and I totally agree with Basu that this is not only the right way forward, but that it now looks increasingly likely (...) that this is the road that wil actualy be folowed ± not only in political economy, but across the board in the social sciences. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Art's DetourA Clash of Aesthetic TheoriesS. K. Wertz (bio)Both John Dewey1 and Martin Heidegger2 thought that art's audience had to take a detour in order to appreciate or understand a work of art. They wrote about this around the same time (mid-1930s) and independently of one another, so this similar circumstance in the history of aesthetics is unusual since they come from very different philosophical traditions. What was it (...) about the climate of the times that led them to such an idea? Is it still viable today? Both philosophers thought that art's audience is not in a position to immediately appreciate works of art—that we are missing something for a direct appreciation or apprehension—so we must take a detour. Why the detours and what are they? Are the detours similar? And are Dewey and Heidegger right about this? The essay that unfolds below attempts to answer these questions.First a definition is in order so we know what the term "detour" means when I use it. What is a detour? It is a deviation from a direct course or the usual procedure; a roundabout way temporarily replacing part of a route; in other words, a bypass or a roundabout way to some destination. The Little Oxford Dictionary adds a different twist on my characterization: "a course that leaves and rejoins [the] direct route."3 Applying this idea to art, we can say that a detour describes an audience who ordinarily perceives an artwork is a legitimate beginning for an appreciation of it, but that course must be bypassed for another (conception) before it can rejoin the direct route (perception). In other words, perceptions in the aesthetic experience must be aided by conceptions—a decidedly Kantian stance taken by Dewey and Heidegger. Their illustrations make my interpretation plausible.One of Heidegger's examples is Van Gogh's painting of a pair of peasant boots.4 He selects this painting to illustrate his metaphysics, which centers around the notion of "equipment." Peasant boots are equipment in [End Page 100] the sense that they are worn or used; the mere thing (like shoes or boots in a store [exhibited] or a closet [in storage]) disappears in use and becomes equipment. Between equipment and mere things—these two categories of being—are artworks. They are pictorial representations of equipment (in Heidegger's illustration; a pair of shoes as mere things could be a pictorial representation, like an advertisement, but it wouldn't be the same). Through the painted boots, a world comes into focus—a network of meaning. The world Heidegger sees in the Van Gogh painting is captured in the following descriptions: "In the vicinity of the [art]work we were suddenly somewhere else than we usually tend to be…. The art work let us know what shoes are in truth" (ATCR 233). So the nature of art is still a question about the nature of representation for Heidegger: it is what the shoes disclose to us about human existence. As he says, it is not just merely a pair of shoes portrayed but shoes "from the dark opening of the worn insides … the toilsome tread of the worker stares forth" (ATCR 232). In other words, we see the difficult labor that this particular owner toiled with in her daily chores.In Tralbaut's book, he quotes Heidegger in a caption alongside the painting: "Engraving in the intimate obscurity of the hollow of a boot is the weariness of the steps of work. The rough and solid weight of the clog tells of the slow and obstinate trudge across the fields."5 Heidegger continues in the same vein:In the stiffly rugged heaviness of the shoes there is the accumulated tenacity of her slow trudge through the far-spreading and ever-uniform furrows of the field swept by a raw wind. On the leather lie the dampness and richness of the soil. Under the soles slides the loneliness of the field-path as evening falls. In the shoes vibrates the silent call of the earth, its quiet gift of the ripening grain and its unexplained self-refusal in the fallow desolation of... (shrink)

Although we believe the results reported below to have direct philosophical import, we shall for the most part confine our remarks to the realm of mathematics. The reader is referred to [4] for a philosophically oriented discussion, comprehensible to mathematicians, of tense logic.The “minimal” tense logicT0is the system having connectives ∼, →,F(“at some future time”), andP(“at some past time”); the following axioms:(whereGandHabbreviate ∼F∼ and ∼P∼ respectively); and the following rules:(8) fromαandα → β, inferβ,(9) fromα, infer any substitution instance ofα,(10) fromα, (...) inferGα,(11) fromα, inferHα.A tense logic is a systemTwhose language is that ofT0and whose axioms and rules include (1)–(11). The axioms and rules ofTother than (1)–(11) are calledproperaxioms and rules.We shall investigate three systems of semantics for tense logics, i.e. three notions ofstructureand three relations ⊧ which stand between structures and formulas. One reads⊧αas “αis valid in.” A structureis amodelof a tense logicTif every formula provable inTis valid in. A semantics isadequateforTif the set of models ofTin the semantics is characteristic forT, i.e. if wheneverT ∀ αthen there is a modelofTin the semantics such that∀ α. Two structuresand, possibly from different semantics, are calledequivalent(∼) if exactly the same formulas are valid inas in. (shrink)

Jean-François Revel is the first philosopher to take food seriously and to offer a topology for food practices. He draws a distinction between different kinds of cuisine -- popular (regional) cuisine and erudite (professional) cuisine. With this distinction, he traces the evolution of food practices from the ancient Greeks and Romans, down through the Middle Ages, and into the Renaissance and the Modern Period. His contribution has been acknowledged by Deane Curtin who offers an interpretation of Revel’s conceptual scheme along (...) Platonic lines. In this essay the author reviews Curtin’s interpretation, finds it wanting in certain respects, and develops an alternative reading of Revel along Hegelian lines. This interpretation, the author believes, does greater justice to Revel’s topology for food practices. (shrink)

In verse twelve of the Tao Te Ching, Lao Tzu makes a curious claim about the five flavors; namely that they cause people not to taste or that they jade the palate. The five flavors are: sweet, sour, salt, bitter and spicy or hot as in 'heat'. To the Western mind, the claim, 'The five flavors cause them [persons] to not taste,' is counterintuitive; on the contrary, the presence of the five flavors in a dish or in a meal would (...) expand or enhance the senses and the palate, i.e., taste would be augmented by the five flavors. So what is the plausible meaning of the Taoistic claim? To answer this question, I look very briefly at the history of the doctrine of the five flavors and the history of Chinese cuisine. Lao Tzu probably has Confucian feasts in mind in making such a claim, but other interpretations are discussed. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Hume Studies Volume XX, Number 2, November 1994, pp. 261-287 Collingwood's Understanding of Hume S. K. WERTZ What was David Hume's reception in the British idealistic tradition? In this paper, I shall contribute a short chapter on this question by examining Hume's place in R. G. Collingwood's thought.1 Such an examination has been lacking in the literature, so what follows is a comprehensive study of Collingwood's use of Hume (...) throughout all of R.G.'s writings. I shall mainly focus on two main, unrelated discussions of Hume: first is the theory of the imagination which primarily occurs in The Principles of Art, and second is the set of relations between human nature and human history which is principally found in The Idea of History. These sections will be followed by a section on minor discussions and omissions and a conclusion. It is a common misconception that Collingwood (1889-1943) has little to offer Hume scholarship, and I wish to amend that here. Actually, Collingwood has good insights into the nature of the imagination and its role in human understanding, besides instructive thoughts on Hume on human nature and history, even though his discussion of the latter is flawed. This essay serves both historical and philosophical purposes. It is to sample Hume's place in early twentieth century British idealism at a time when he began to emerge as an important philosophical figure worthy of careful study. (By "idealism," I mean the philosophical movement which takes ideas to be an irreducible part of the world and whose program is opposed to both materialism and realism.) So Collingwood's portrait is historically interesting. But over and above this, it carries significant philosophical amendments, S. K. Wertz is at the Department of Philosophy, Texas Christian University, Box 30781, Fort Worth, TX 76129 USA. e-mail: [email protected] 262 S. K. Wertz criticisms, and suggestions about Hume's thought and the eighteenth century intellectual climate. Collingwood has mostly been studied as a philosopher of history or as an aesthetician, but not in toto from the perspective of one of the historical figures to whom he is deeply indebted. Such a view affords a portrait of Hume that is instructive and rewarding. The comparison of Hume and Collingwood lead us to finer appreciation of both philosophers. Let us first look at Collingwood's positive contribution. Imagination Collingwood begins his analysis by declaring his intentions: I shall...try to show that there are such things, to be with what Hume (whose account of them I shall take as my starting-point) called 'ideas' as distinct from 'impressions'. I shall try to show that there is a special activity of mind correlative to them, and that this is what we generally call imagination, as distinct from sensation on the one hand and intellect on the other. (PA 170-71, emphasis added) Why would Collingwood start with Hume's distinction between impressions and ideas? Undoubtedly, this means that Collingwood is willing to accept the validity of the distinction and to build on it. Isn't this a strange place for an idealist to begin? Not really. When we look at British philosophy at the turn of this century, we find idealists preoccupied with the distinction,2 so it is not extraordinary to find Collingwood utilizing it to some extent. Like most Oxford students of the time, Collingwood read Locke, Berkeley, and Hume in his undergraduate program. Consequently we find them in the problems he addresses. "It was Hume who first perceived the [Lockean] problem [of confusing sensation with imagination]," Collingwood attributes, "and tried to solve it by distinguishing ideas from impressions" (PA 200). In detail: He [Hume] was right when he laid it down that the immediate concern of thought is not with impressions but with ideas; that it is ideas, not impressions, that are associated with one another and thus built up into the fabric of knowledge; and that ideas, though 'derived' from impressions, are not mere relics of them like an after-taste of onions or an after-image of the sun (as Lockeans like Condillac supposed), but something different in kind: different, if not in what he... (shrink)

Written from the perspective of philosophy of liberation, this essay holds that the reform of basic human relationships and their cultural instantiation(s) is central to all serious societal change. The essay analyzes naive, mythological, and critical consciousness. It examines how these modes of consciousness are embodied in the health delivery system and then describes areas where practitioners and patients of critical consciousness might work for greater humanization of health care.

Recently David Best has advanced the claim that sport is not an art form, and that although sport may be aesthetic, it is not artistic. Such a claim is false and runs counter to ordinary usage and sport practice. On behalf of sport practice, let me cite as an example the world-class Canadian skater, Toller Cranston, who thinks there are such things as ‘artistic sports, those being gymnastics, diving, figure skating’. Best claims that athletes like Cranston are conceptually confused and (...) that they endow sport with greater respectability than should be allowed. Ascribing the predicate ‘artistic’ to sport performances reflects ‘barbarous usage’. Why does Best exclude the artistic from the realm of sport? Upon examination of his argument, one finds that this exclusion derives mainly from his concepts of art and sport. He thinks that art has a subject-matter, a content, and that sport does not. Sport is contentless, so ‘sport’ and ‘art’ are two logically distinct regions. But is this so? Are we to accept Best's argument or are we to listen to accomplished, reflective athletes in the area of artistic sports? It seems the most reasonable analytic procedure would be to listen to Cranston's case and decide whether such a piece of intentionalist criticism5 should override Best's premises. (shrink)

The novel Doctor Zhivago has not received the attention it has deserved lately—even much less for its philosophical ideas—so in this essay I want to bring attention to Boris Pasternak's notion of the nature of consciousness, which I find quite interesting. Yurii Zhivago, one of the principal characters in Doctor Zhivago, says the following about the experience of death: Will you [Anna Ivanovona] feel pain? Do the tissues feel their disintegration? In other words, what will happen to your consciousness? But (...) what is consciousness? Let's see. A conscious attempt to fall asleep is sure to produce insomnia, to try to... (shrink)

This paper is an adventure of ideas which draws on the 'magic—magician' metaphor of medieval India to define the current existential predicament of the world. The author sets an agenda for reprioritization for restoring the imbalance in the fragmented human consciousness. This, the paper suggests, can be done by a gradual return to the subjective causal source of all our problems. The waning of the Objective Age created by science-technology-industrialism has led to a 'mutilating assimilative im balance' in this world. (...) The author urges the readers to strive for a subjective metanoia to counteract the objective paranoia of our times. (shrink)

This essay examines an oil painting by Georgia O’Keeffe, Ritz Tower (1928), applying the terms of William James’s pragmatic conception of truth and the ideas that play a part in it, for example, pluralism and spiritualism, along with assistance from Martin Heidegger’s notion of Wohnung (dwelling). This is not only a fruitful way to look at her painting but paintings in the same or similar genre. Aesthetic judgments made about Ritz Tower are true if they work (in the pragmatic sense) (...) for those who make said judgments if they find them successful in fitting in with other ideas and beliefs in their aesthetic experience of the painting or other artworks. (shrink)

Medical practice is based on teaching, learning and examples set by seniors. Past and present practices are briefly analysed. Current trends do not justify optimism. The poor patient is likely to be sidelined as doctors reach out to the rich and powerful in this country and those bringing in American dollars from abroad. While corrective steps are possible, it is unlikely that they will be implemented.

Advances in life-saving technologies in the past few decades have challenged our traditional understandings of death. Traditionally, death was understood to occur when a person stops breathing, their heart stops beating and they are cold to the touch. Today, physicians determine death by relying on a diagnosis of ‘total brain failure’ or by waiting a short while after circulation stops. Evidence has emerged, however, that the conceptual bases for these approaches to determining death are fundamentally flawed and depart substantially from (...) the established biological conception of death. We argue that the current approach to determining death consists of two different types of unacknowledged legal fictions. These legal fictions were developed for practices that are largely ethically legitimate but need to be reconciled with the law. The considerable debate over the determination of death in the medical and scientific literature has not informed the public that vital organs are being procured from still-living donors and it seems unlikely that this information can remain hidden for long. Given the instability of the status quo and the difficulty of making the substantial legal changes required by complete transparency, we argue for a second-best policy solution: acknowledging the legal fictions involved in determining death to move in the direction of greater transparency. This may someday result in more substantial legal change to directly confront the challenges raised by life-sustaining and life-preserving technologies without the need for fictions. (shrink)

Unethical business in India became a recognized phenomenon during the second World War. Academic/journalistic/legal concern with ethics has become visible only during the nineties. Corruption-of-the-poor and corruption-of-the-rich need to be distinguished - especially in the context of globalization. The danger of attributing unethical practices to system failure is recognized. It is also important to bring to bear on intellectual property rights the more fundamental principle of natural property rights. Consciousness ethics will be more crucial than just intellectual ethics.

THIS ESSAY DEALS WITH D F NORTON’S INTERPRETATION OF HUME’S METHODOLOGY IN THE LATTER’S FAMOUS DISCUSSION OF MIRACLES IN THE FIRST INQUIRY. NORTON CONSTRUES "EXPERIENCE" TO MEAN PERSONAL, INDIVIDUAL EXPERIENCE. THE AUTHOR SHOWS THAT THERE IS ANOTHER SENSE OF THE WORD WHICH IS MORE COSMOPOLITAN AND ONE WHICH SQUARES MORE WITH THE USES OF EVIDENCE FOUND IN THE "HISTORY OF ENGLAND". ALTERNATIVE INTERPRETATIONS OF THE HUME PASSAGE ARE GIVEN AND HUME’S METHOD IS COMPARED WITH R G COLLINGWOOD’S IMAGINATIVE RECONSTRUCTIONIST IDEA (...) OF HISTORY. (shrink)

I examine Nagarjuna’s averting an opponent’s argument, Paul Sagal’s general interpretation of Nagarjuna and especially Sagal’s conception of "averting" an argument. Following Matilal, a distinction is drawn between locutionary negation and illocationary negation in order to avoid errant interpretations of verse 29 The argument is treated as representing an ampliative or inductive inference rather than a deductive one. As Nagarjuna says in verse 30: "That [denial] of mine [in verse 29] is a non-apprehension of non-things" and non-apprehension is the averting (...) of arguments or "the relinquishing of all views." "Not making a proposition P" would be not speaking P or silence with regard to P and, as Sagal argues, not meaning a global linguistic silence. Such an interpretation would lead to attributing wholesale irrationalism to Nagarjuna-something I wish to avoid. (shrink)