Study of Saṅkṣepaśārīraka of Sarvajñātman, condensed version of Śārīrakamīmāṃsābhāṣya of Śaṅkarācārya, work on Advaita Vedanta philosophy.

Culture, livelihoods and political-economic status all influence people's perception of introduced and invasive species, shaping perspectives on what sort of management of them, if any, is warranted. Indigenous voices and values are under-represented in scholarly discourse about introduced and invasive species. This paper examines the relationship between the Xeni Gwet'in First Nation (one of six Tsilhqot'in communities) and wild or free-roaming horses in British Columbia, Canada. We outline how Xeni Gwet'in people value horses and experience management actions, contextualising the controversy (...) over wild horses amidst power imbalances in the expression of environmental values. We suggest that Indigenous voices are vital to include when evaluating impacts of controversial species and developing management strategies. (shrink)

Basic work on Hindu logic and epistemology of the neo-Nyaya school in Hindu philosophy; portion of Tattvacintāmaṇi deals with perception.

On the philosophical concepts of the religion of the Khasis, ethnic people from Meghalaya.

Cet article s’intéresse aux gestes performatifs et aux pas de danse à travers lesquels les femmes colonisées de la bourgeoisie négocièrent les tensions profondes entre le patriarcat indien et la domination coloniale au Bengale (en Inde) à la fin du xixe et au début du xxe siècle. La première partie examine la contribution du Prix Nobel de poésie, Rabindranath Tagore (1861-1941), au développement de la danse au Bengale et replace sa pratique de danse au sein d’une discussion plus large sur (...) le genre et le nationalisme indien. La seconde partie explore l’intérêt de Tagore pour la mise-en-scène du genre et la décolonisation de la scène indienne à travers l’étude de ses lettres de voyage en Asie du Sud-Est. La troisième partie déplace le regard au-delà de l’idée d’auteur célèbre qui influence la plupart des écrits sur Tagore – poète et romancier, reconnu internationalement, notamment pour ses spectacles mettant les femmes au centre de la scène. À la place, cet article privilégie une lecture donnant à voir le travail et l’écriture sur la danse de sa belle-fille, Pratima Devi. Cette dernière conçut, supervisa, et travailla sur beaucoup des œuvres dramatiques et dansées de Tagore au Bengale, renversant ainsi beaucoup des normes qui étaient imposées par un nationalisme indien patriarcal sur les femmes issues de la bourgeoisie. Ainsi, cette étude incite à comprendre les relations entre le travail du corps des femmes dans et hors de la scène colonisée de la danse du xxe siècle bengali. (shrink)

This paper presents an attempt to bridge the gap between logical and cognitive treatments of strategic reasoning in games. There have been extensive formal debates about the merits of the principle of backward induction among game theorists and logicians. Experimental economists and psychologists have shown that human subjects, perhaps due to their bounded resources, do not always follow the backward induction strategy, leading to unexpected outcomes. Recently, based on an eye-tracking study, it has turned out that even human subjects who (...) produce the outwardly correct ‘backward induction answer’ use a different internal reasoning strategy to achieve it. The paper presents a formal language to represent different strategies on a finer-grained level than was possible before. The language and its semantics help to precisely distinguish different cognitive reasoning strategies, that can then be tested on the basis of computational cognitive models and experiments with human subjects. The syntactic framework of the formal system provides a generic way of constructing computational cognitive models of the participants of the Marble Drop game. (shrink)

How do people reason about their opponent in turn-taking games? Often, people do not make the decisions that game theory would prescribe. We present a logic that can play a key role in understanding how people make their decisions, by delineating all plausible reasoning strategies in a systematic manner. This in turn makes it possible to construct a corresponding set of computational models in a cognitive architecture. These models can be run and fitted to the participants’ data in terms of (...) decisions, response times, and answers to questions. We validate these claims on the basis of an earlier game-theoretic experiment about the turn-taking game “Marble Drop with Surprising Opponent”, in which the opponent often starts with a seemingly irrational move. We explore two ways of segregating the participants into reasonable “player types”. The first way is based on latent class analysis, which divides the players into three classes according to their first decisions in the game: Random players, Learners, and Expected players, who make decisions consistent with forward induction. The second way is based on participants’ answers to a question about their opponent, classified according to levels of theory of mind: zero-order, first-order and second-order. It turns out that increasing levels of decisions and theory of mind both correspond to increasing success as measured by monetary awards and increasing decision times. Next, we use the logical language to express different kinds of strategies that people apply when reasoning about their opponent and making decisions in turn-taking games, as well as the ‘reasoning types’ reflected in their behavior. Then, we translate the logical formulas into computational cognitive models in the PRIMs architecture. Finally, we run two of the resulting models, corresponding to the strategy of only being interested in one’s own payoff and to the myopic strategy, in which one can only look ahead to a limited number of nodes. It turns out that the participant data fit to the own-payoff strategy, not the myopic one. The article closes the circle from experiments via logic and cognitive modelling back to predictions about new experiments. (shrink)

Correspondence between Aurobindo Ghose, 1872-1950 and Dilip Kumar Roy, 1897-1980.

In His Learned Book, Development Of Nyaya Philosophy And Its Social Context Professor Sibajiban Bhattacharyya Has Traced The History Of Nyaya Philosophy With Reference To Its Social Contexts. That This System Of Philosophy, Darsana, Is Not Unnecessarily Abstract But Has Taken Congizance Of Its Theoretical Ancestry As Well As Practical Circumstances Will Be Evident To The Perceptive Reader. As A Branch Of Knowledge, Vidya, Philosophy As Darsana Was Known In India For A Long Time. In Kautilya'S Arthasastra The Recognized (...) Branches Of Knowledge Are Four: (I) The Three Vedas (Trayi), (Ii) Trade And Commerce (Varta); (Iii) Law And Order (Dandaniti) And (Iv) Anvisiki, Which According To Kautilya Means Sankhya, Yoga And Lokayata. However, Later On Anvisiki Stood For Logic And Metaphysic. In The History Of Indian Philosophy The First Use Of The Term Darsana Has Been Attributed To Haribhadrasuri, The Jaina Philosopher And Author Of The Sad Darsana Samuccaya. Nearly 400 Years After Haribhadrasuri The Term Darsana In The Current Sense Was Used By Sankaracarya In His Commentary On The Brahmasutra. In This Comprehensive Book Professor Bhattacharyya Has Dealt With The Works Of Mostof The Famous Nyaya Thinkers Like Gautama, Vatsyayana, Jayanta Bhatta, Bhasarvajna, Udayana, Vardhamana And Various Other Writers Down The Centuries. This Scholarly Book From The Pen Of Bhattacharyya Is Highly Readable And Informative. It Is Hoped That The Book Will Be Profitably Used By Researchers, Scholars And The General Reading Public. (shrink)

The classical theory of rational choice is built on several important internal consistency conditions. In recent years, the reasonableness of those internal consistency conditions has been questioned and criticized, and several responses to accommodate such criticisms have been proposed in the literature. This paper develops a general framework to accommodate the issues raised by the criticisms of classical rational choice theory, and examines the broad impact of these criticisms from both normative and positive points of view.

Chapter I. Phenomenology and psychology -- chapter II. The phenomenological concept of consciousness-the concept of interntionality and its relevance for psychology -- chapter III. Behaviourism and phenomenology -- chapter IV. Phenomenology and Gestalt psychology -- chapter V. Sartre's constribution to phenomenological psychology -- chapter VI. Max Scheler on the nature of sympathy -- chapter VII. Merleau-Ponty's phenomenological psychology -- chapter VIII. A concluding assessment of phenomenological psychology.

There are two important aspects of any democratic decision: aggregation of preferences and deliberation about preferences. They are essential and complementary components of any decision making process. While the well-studied process of aggregation focuses on accumulating individual preferences without discussing their origin [4], deliberation can be seen as a conversation through which individuals justify their preferences, a process that might lead to changes in their opinions as they get influenced by one another. Till now, there has been a lot of (...) work on the ‘aggregation’ aspect (e.g., [12, 14, 6]). However, some recent work has focussed on the deliberation aspect as well [8, 9, 10, 15]. Sometimes, deliberation does not lead to unanimity in preferences, but the discussion can lead to some ‘preference uniformity’ (see how deliberation can help in bypassing social choice theory’s impossibility results in [5]), which might facilitate their eventual aggregation. In addition, the combination of both processes provides a more realistic model for decision making scenarios. In light of this status quo, our focus is on the formal study of achieving such preference uniformities, e.g., single-peaked, single-caved, single-crossing, value-restricted, best-restricted, worst-restricted, medium-restricted, or group-separable profiles. In this short abstract we provide our preliminary ideas towards achieving singlepeakedness of preference profiles via deliberation. In what follows, we define two preference upgrade operators based on [8, 9] and provide a preliminary discussion on how single-peaked preference profiles can be achieved through such operations. We will delve into the details of the logical language in the main paper. (shrink)

Treatise on the concept of relation in Nyaya school in Hindu philosophy.

Recognizing the centrality of representation in philosophy and social sciences as constitutive of knowledge concerning the interpretation of social reality, this article highlights on the need to e...

Articles, most previously published in periodicals, 1955-1975.

Sibajiban Bhattacharyya, Indian philosopher; contributed articles.

We discuss a simple logic to describe one of our favourite games from childhood, hide and seek, and show how a simple addition of an equality constant to describe the winning condition of the seeker makes our logic undecidable. There are certain decidable fragments of first-order logic which behave in a similar fashion and we add a new modal variant to that class of logics. We also discuss the relative expressive power of the proposed logic in comparison to the standard (...) modal counterparts. (shrink)