Nyaya

Exegesis on Vātsyāyana's Nyāyabhāṣya, expounding the Nyaya School in Hindu philosophy.

Universals are properties that are shared by multiple objects. In classical South Asia, Brahmanical thinkers from Vyākaraṇa, Nyāya, Vaiśeṣika, and Mīmāṃsā text traditions were realists about universals, while most Buddhists were nominalists. In this paper, my aim is to reconstruct the early Nyāya-Vaiśeṣika theory of universals, with special emphasis on the arguments of the Nyāya philosopher Uddyotakara (6th century CE) against a Buddhist strand of resemblance nominalism. I show that Uddyotakara's contribution to this debate is twofold. First, he is possibly (...) the first Naiyāyika to adopt a sparse theory of universals, a theory according to which it is necessary to posit only those universals which explain how objects resemble each other in the most fundamental or irreducible respects. On the other hand, he offers a few arguments for realism, which are explicitly motivated by a causal constraint on intentionality. (shrink)

While many people today might turn to ancient Sanskrit philosophers for meditation or yoga, probably few would turn to them for help with difficult contemporary problems, such as what counts as "fake news" or navigating Internet debates. Philosopher Malcolm Keating argues that, in fact, a group of premodern Indian philosophers known as "Nyāya" have important things to say about how we can distinguish truth from falsity and reason well together, both of which are crucial to living a good life. -/- (...) In Reason in an Uncertain World, Keating teaches us what's distinctive in Nyāya approaches to knowledge and discussion, explaining these ideas in relationship to ordinary examples readers can understand. What are the limits of our reasoning? What counts as good evidence for our beliefs? How do we know if someone is a trustworthy source of information? What do we do when we are gripped by doubt? When is a debate with someone worth our time, and how can we discuss contentious topics? The answers to these questions are as relevant today as they were in ancient India. There, they were the focus of Nyāya philosophy, one of the most influential traditions of Indian philosophy, which few outside of scholarly communities have heard of. (shrink)

Later Nyāya philosophers maintain that absences are real particulars, irreducible to any positives, that we perceive. The fourteenth-century Nyāya philosopher Gaṅgeśa argues for a condition on absence perception according to which we always perceive an absence as an absence of its counterpositive, or its corresponding absent object or property. Call this condition the ‘counterpositive condition’. Gaṅgeśa shows that the counterpositive condition is both supported by a plausible thesis about the epistemology of relational properties and motivates the defence of absence as (...) irreducible. But against Gaṅgeśa, the sixteenth-century Nyāya philosopher Raghunātha and his seventeenth-century commentators Bhavānanda, Jagadīśa, and Gadādhara identify cases in which the counterpositive condition fails. In this article, I examine the Nyāya-internal debate over this condition. I conclude that Raghunātha makes a compelling case that the counterpositive condition fails. (shrink)

In A Confection of Refutation (Khaṇḍanakhaṇḍakhādya), the twelfth-century philosopher and poet Śrīharṣa addresses a version of Meno’s paradox. This version of the paradox was well known in first millennium South Asia through the writings of two earlier Sanskrit philosophers, Śabarasvāmin (4th–5th century ce) and Śaṃkara (8th century ce). Both these thinkers proposed a solution to the paradox. I show how Śrīharṣa rejects this solution, and splits the old paradox into two new ones: the paradox of triviality and the paradox of (...) incoherence. I argue that these paradoxes are connected to Śrīharṣa’s broader pessimism about the possibility of successful rational inquiry into certain philosophical questions. (shrink)

Vatsyayana's Commentary on the Nyaya-sutra is one of classical India's most important philosophical works.

According to the Navya Naiyāyikas, inference is the knowledge, which is produced out of consideration. But what is to be understood by the term ‘consideration’ or ‘parāmarśa’? According to them, parāmarśa or consideration is the factor through the operation of which the inferential conclusion can be attained. Parāmarśa has been defined as the knowledge of the existence of the hetu or reason in the pakṣa or subject, which reason is characterized by its being concomitant with the sādhya, the knowledge in (...) the form of parāmarśa is actually caused by the knowledge of invariable concomitance of probans (hetu) with the probandum (sādhya) and the knowledge of the existence of the hetu in the subject (pakṣa). It has been said by Viśvanātha that the cognition of the existence of probans or hetu in the subject of inference along with the cognition of the prabans or hetu as pervaded by sādhya is called parāmarśa (pakṣasya vyāpyavṛttitvadhīḥ parāmarśa ucyate). The invariable co-existence in the form ‘where there is smoke, there is fire’ is known as vyāpti or invariable concomitance. Here the invariable coexistence (avyabhicārī sāhacarya) between the probans and probandum (i.e., smoke and fire) is the definition of vyāpti. The term ‘co-existence’ means remaining in the same locus of the probans with the probandum, which is not the counter positive of the absolute negation existing in the locus of the hetu. To Gangeśa, the knowledge of the co-existence of the probans and probandum along with the absence of the knowledge of deviation of the probans is the cause of ascertaining vyāpti. Repeated observations, of course, sometimes act as a promoter (prayojaka) in ascertaining vyāpti by removing the doubt of deviation. The doubt of deviation can be removed sometimes by Tarka or sometimes by the absence of the collocation of causes of doubt, which is called svataḥsiddhaḥ. Gangeśa admits sāmānyalakṣaṇā as a pratyāsatti in ascertaining vyāpti between smoke-in-general and fire-in-general. To him, the super-normal connection through universal (sāmānyalakṣaṇā pratyāsatti) has got a prominent role in ascertaining vyāpti. If somebody challenges about the validity of the syllogistic argument in the form “The mountain is fiery as it possesses smoke” (parvato vahnimān dhūmāt), the philosophers of Nyāya and Navya-nyāya persuasion will justify the same with the help of five constituents (avayava-s). The process is called parāthānumāna (syllogistic argument for making others understand). The constituents of a syllogism are proposition (pratijňā), reason (hetu), example (udāharaṇa), application (upanaya), and conclusion (nigamana). (shrink)

The present paper is about three concepts which are crucially involved in Gaṅgeśa's interpretation of a Mīmāṃsā argument against the well-known design inference of the existence of God in Nyāya, namely the concepts “cognition” (jñāna), “certitude” (niścaya) and “doubt” (saṃśaya). According to Maheśa Chandra, the author of the Navya-Nyāya manual Brief Notes on the Modern Nyāya System of Philosophy and its Technical Terms, certitude and doubt are the two varieties of cognition. He illustrates the verbal expression of certitudes by means (...) of declaratives and the verbal expression of doubts by means of interrogatives (functioning as polar or alternative questions). He notes also that different credence levels might be associated with the alternatives involved in a speaker’s doubt. A biassed question in the form of a tag interrogative might be an appropriate way to express such a doubt. In Western logic the idea to treat declaratives and interrogatives on a par, which is anticipated by the Navya-Naiyāyikas' use of the unifying concept of “cognition”, goes back to Frege’s distinction between the semantic content (the “thought”) of a sentence and its force and it was recently elaborated by Ciardelli, Farkas, Groenendijk, Roelofsen et al., the founders of a new branch in logic called “inquisitive logic”. In the present paper we will discuss Maheśa Chandra's succinct exposition of the Navya-Naiyāyikas' innovative approach from the perspective of this type of logic. As an offshoot of our analysis we will try to elucidate Gaṅgeśa's apologetic concerns about the well-known design inference of the existence of God in Nyāya and its liability to be vitiated by a dubious upādhi. (shrink)

The Bhagavad-Gita, as a multivalent text, has been a source of inspiration for all areas of Indian thought. This paper identifies elements in the Bhagavad-Gita which may have influenced the formation of Nyaya philosophy in the centuries after it was written. Part one of the paper reviews Nyaya epistemology as a whole, focusing on aspects that play an important role in the Bhagavad-Gita: perception (pratyaksa), inference (anumana), ‘syllogism’, verbal utterance (sabda) and the practical orientation of knowledge. The second part shows (...) how those aspects appear in the text of the Bhagavad-Gita. In praticular, Krishna relies on a number of techniques in convincing Arjuna of his obligation as a ksatria which would later be formalized in Nyaya philosophy as pramana or methods of knowing. As a whole, the Bhagavad-Gita also emphasizes the Nyaya view that knowledge is only useful insofar as it helps the knower achieve a particular goal. This paper does not, and has no pretention to prove the existence of a direct line of influence connection the Bhagavad-Gita and Nyaya philosophy; readers will instead gain an appreciation of the shared cultural context which gave rise to both of these forms of Indian thought. Abstrak Bhagavad-Gita, sebagai teks yang multitafsir, telah menjadi sumber inspirasi bagi segala pemikiran India. Makalah ini mengidentifikasikan unsur-unsur dalam Bhagavad-Gita yang mungkin memengaruhi pembentukan filsafat Nyaya selama beberapa abad setelah Bhagavad-Gita ditulis. Bagian pertama makalah meringkas epistemologi Nyaya secara keseluruhan dengan berfokus pada aspek-aspek yang memainkan peran penting dalam Bhagavad-Gita: persepsi (pratyaksa), penyimpulan (anumana), ‘silogisme’, saksi verbal (sabda), dan orientasi praktis pengetahuan. Bagian kedua memperlihatkan bagaimana aspek-aspek tersebut muncul dalam teks Bhagavad-Gita. Secara khusus, Krishna mengandalkan berbagai teknik dalam meyakinkan Arjuna akan kewajibannya sebagai ksatria yang kemudian diformalkan dalam filsafat Nyaya sebagai pramana atau sarana pengetahuan. Secara keseluruhan, Bhagavad-Gita juga menekankan pandangan Nyaya bahwa pengetahuan hanya berguna sejauh dapat membantu si penahu mencapai tujuan tertentu. Makalah ini tidak dapat membuktikan adanya garis pengaruh langsung yang menghubungkan Bhagavad-Gita dengan filsafat Nyaya; namun, kita tetap dapat mengapresiasi suatu ‘kemiripan keluarga’ di antara keduanya yang menunjukkan kekayaan konteks kebudayaan yang menghasilkan kedua buah pemikiran peradaban India ini. (shrink)

Analytic philosophers have, since the pioneering work of B.K. Matilal, emphasized the contributions of Nyāya philosophers to what contemporary philosophy considers epistemology. More recently, scholarly work demonstrates the relevance of their ideas to argumentation theory, an interdisciplinary area of study drawing on epistemology as well as logic, rhetoric, and linguistics. This paper shows how early Nyāya theorizing about argumentation, from Vātsyāyana to Jayanta Bhaṭṭa, can fruitfully be juxtaposed with the pragma-dialectic approach to argumentation pioneered by Frans van Eemeren. I illustrate (...) the implications of this analysis with a case study from Jayanta Bhaṭṭa’s satirical play, Much Ado about Religion (Āgamaḍambara). (shrink)

The tradition of Nyāya philosophy centers on a dispassionate quest for truth which is simultaneously connected to soteriological and epistemic aims. This article shows how Vācaspati Miśra brings together the soteriological concept of dispassion with the discourse practices of debate, as a response to Buddhist criticisms in Dharmakīrti’s Vādanyāya. He defends the Nyāyasūtra’s stated position that fallacious reasoning is a legitimate means for a debate, under certain circumstances. Dharmakīrti argues that such reasoning is rationally ineffective and indicates unvirtuous qualities. For (...) Vācaspati, fallacies are a way to prevent the spread of morally weighty falsehoods when no other method is available to a debater. After showing textual relationships between Vācaspati’s defense and Dharmakīrti’s earlier criticism, it evaluates their arguments, concluding that Vācaspati’s position involves irresolvable tensions with other Nyāya commitments. (shrink)

This paper is taken from a long section of the _Tattva-cintā-maṇi_ by Gaṅgeśa that is devoted to proving the existence of—to use an inadequate word—“God” in a somewhat minimalist sense. The _īśvara_, the “Lord,” is for Gaṅgeśa, following Nyāya predecessors, a divine agent, a self, responsible for much, not all, of the order in the world. Unseen Force, _adṛṣṭa_, which is in effect _karman_ made by human action, is also a powerful agent as well as things’ intrinsic natures. Moreover, ordinary (...) selves, atoms, ether, and universals are uncreated. But the _īśvara_ brings about just desert in reincarnation in actualizing Unseen Force, and is responsible for a broad swathe of what some see as accidental arrangements as well as the forming of the macro elements from eternal, naturally _dis_joined atoms. Thus the cosmos in its general existence and structure is viewed in Nyāya as the work of the Lord. Gaṅgeśa’s argument runs: Earth and the like [_a_ (_pakṣa_) = earth and the like (_kṣity-ādi_)] have a conscious agent as a cause [S (_sādhya_) = having an agential cause (_sakartṛkatva_) (S_a_)], _since_ they are effects [H (_sādhana_) = being an effect [(_kāryatva_) (H_a_)], like a pot [_b_ (_dṛṣṭānta_) = a pot (H_b_,S_b_)]. And so the _vyāpti_ rule is: [H → S (_vyāpti_)] Whatever is an effect has an agential cause. For earth and the like, it is reasoned that only an omniscient _īśvara_ could be that cause. The argument was a target of Buddhists who pointed to counterexamples such as growing grass. Growing grass exhibits the prover property, being-an-effect, but not the property to be proved, having-an-agential-cause. The long section is dominated by Gaṅgeśa’s rebutting this and other potential defeaters, in particular, the _upādhi_, having-a-living-body (God does not have a living body but all the agential causes with which we are familiar do), along with a counterinference (_sat-pratipakṣa_), I_a_ & (x)(Ix → ¬Sx), where I = not-produced-by-an-agent-with-a-body. (shrink)

The following publication includes the translation of the paper “The Nyāya on True Cognition ” by late Mahāmahopādhya pandit Visvabandhu Tarkatīrtha, translated from Sanskrit and Bengali, supplemented with an introduction and additional explanatory notes by J.L. Shaw. The text aims to discuss the Nyāya conception of truth, which is a property of cognition. According to Gaṅgeśa, the founder of Navya-Nyāya, the truth cannot be considered as a class-essence because there will be a defect called ‘ sāṅkarya ’ between truth and (...) the class-essence perceptual apprehendedness. Visvabandhu Tarkatīrtha has clarified the concepts of truth and true cognition in Navya-Nyāya, explaining the complex character of the partitiveness of truth and introducing the definitions of such characteristics of the object as non-pervasive and pervasive. Moreover, he has also claimed that the property of being the qualificand and the property of being the qualifier are related by the relation of mutual determiner-determined. (shrink)

In this paper, I propose to discuss the theory of error or Khyativāda with special reference to Nyāya philosophy. The error is an epistemological concept. As such it is contrasted with the truth. Philosophers, while dealing with the concept of error, have analyzed it from logical, metaphysical and psychological perspective. The problem of error in Indian philosophy is discussed in the different theories known as the Khyativāda. According to Nyāya School error is known as anyathākhyativāda. Here 'anyathā' literally means 'otherwise' (...) or 'else-wise'. When shell is perceived as silver, the erroneous cognition consists in the fact that the shell is perceived otherwise i.e. as other than what it really is. Error is an instance of erroneous judgement resulting from mischaracterization. Naiyāyikas bring in jñānalaksana pratyaksa to account for perceptual error. And the later Naiyāyikas are trying to explain the perceptual character of illusory experience, undoubtedly, an illusion, there is the attribution of false character to a perceived fact. (shrink)

The classical Indian school called Nyāya (literally “logic” or “right reasoning”), is arguably the leading anti-skeptical tradition within all of Indian philosophy. Defending a realist metaphysics and an epistemology of “knowledge sources” (pramāṇa), its responses to skepticism are often appropriated by other schools of thought. This paper examines its responses to skeptical arguments from dreams, from “the three times,” from justificatory regress, and over the problem of induction.

This essay explores a problem for Nyāya epistemologists. It concerns the notion of pramā. Roughly speaking, a pramā is a conscious mental event of knowledge-acquisition, i.e., a conscious experience or thought in undergoing which an agent learns or comes to know something. Call any event of this sort a knowledge-event. The problem is this. On the one hand, many Naiyāyikas accept what I will call the Nyāya Definition of Knowledge, the view that a conscious experience or thought is a knowledge-event (...) just in case it is true and non-recollective. On the other hand, they are also committed to what I shall call Nyāya Infallibilism, the thesis that every knowledge-event is produced by causes that couldn’t have given rise to an error. These two commitments seem to conflict with each other in cases of epistemic luck, i.e., cases where an agent arrives a true judgement accidentally or as a matter of luck. While the Nyāya Definition of Knowledge seems to predict that these judgements are knowledge-events, Nyāya Infallibilism seems to entail that they aren’t. In this essay, I show that Gaṅgeśa Upādhyāya, the 14th century Naiyāyika, solves this problem by adopting what I call epistemic localism, the view that upstream causal factors play no epistemically significant role in the production of knowledge. (shrink)

This paper analyzes the incisive counter-arguments against Gaṅgeśa’s defense of non-conceptual perception offered by the Dvaita Vedānta scholar Vyāsatīrtha in his Destructive Dance of Dialectic. The details of Vyāsatīrtha’s arguments have gone largely unnoticed by subsequent Navya Nyāya thinkers, as well as by contemporary scholars engaged in a debate over the role of non-conceptual perception in Nyāya epistemology. Vyāsatīrtha thoroughly undercuts the inductive evidence supporting Gaṅgeśa’s main inferential proof of non-conceptual perception, and shows that Gaṅgeśa has no basis for thinking (...) that non-conceptual perception has any necessary causal role in generating concept-laden perceptual awareness. He further raises a number of internal inconsistencies and undesirable consequences for Gaṅgeśa’s claim that non-conceptual states are introspectively invisible. His own causal theory of perception is more parsimonious than the Nyāya account, and is equally compatible with direct realism. I conclude by noting several striking parallels between Vyāsatīrtha’s views and the conceptualism of John McDowell, while also suggesting that Vyāsatīrtha's own conceptualism is not unduly constrained by some of McDowell’s limiting assumptions about concepts and perceptual contents. (shrink)

In this essay, my aim is to explain Vātsyāyana’s solution to a problem that arises for his theory of liberation. For him and most Nyāya philosophers after him, liberation consists in the absolute cessation of pain. Since this requires freedom from embodied existence, it also results in the absolute cessation of pleasure. How, then, can agents like us be rationally motivated to seek liberation? Vātsyāyana’s solution depends on what I will call the Pain Principle, i.e., the principle that we should (...) treat all aspects of our embodied existence as pain. If we were to follow this advice, we would come to apply the label of pain to all aspects of our embodied existence, including pleasure. This would undermine our attachment to our own embodied existence. I show that this fits with Vātsyāyana’s general theory of motivation. According to this theory, by manipulating the labels using which we think about the world and ourselves, we can induce radical shifts in our patterns of motivation. (shrink)

This article is first in a series dedicated to issues in the intellectual history of Mīmāṃsā in early modern India and part of a larger effort to broaden the basis for understanding the new formulations of central topics of the Mīmāṃsā textual-ritual complex in this period. It examines how the Varanasi scholar Khaṇḍadevamiśra makes use of Navyanyāya tools of analysis by putting under the microscope the example of his investigation and new formulation of the signification of agent and agency by (...) the verbal affix in his ample analysis of the cognition of the meaning elements of a sentence. Authors of Mīmāṃsā works in the sixteenth and seventeenth centuries gradually and selectively adopt the tools and techniques of cognitive analysis and the characteristic new idiom elaborated by Navyanaiyāyikas a few centuries earlier. This process of adoption arises on the sidelines of the Advaita–Dvaita Vedānta controversy in South India, then subsequently flourishes in Varanasi, as I have followed elsewhere. In his analysis of the topic studied here, Khaṇḍadeva uses the new tools to revisit the Mīmāṃsā tradition in order to advance his new formulation while refuting certain Navyanyāya rival positions. (shrink)

Translation of a section of the Mānameyodaya dealing with the independence of arthāpatti (postulation) from anumāna (inferential reasoning).

Arthâpatti is a pervasive form of reasoning investigated by Indian philosophers in order to think about unseen causes and interpret ordinary and religious language. Its nature is a point of controversy among Mimamsa, Nyaya, and Buddhist philosophers, yet, to date, it has received less attention than perception, inference, and testimony. This collection presents a one-of-a-kind reference resource for understanding this form of reasoning studied in Indian philosophy. Assembling translations of central primary texts together with newly-commissioned essays on research topics, it (...) features a significant introductory essay. Readable translations of Sanskrit works are accompanied by critical notes that introduce arthâpatti, offer historical context, and clarify the philosophical debates surrounding it. Showing how arthâpatti is used as a way to reason about the basic unseen causes driving language use, cause-and-effect relationships, as well as to interpret ambiguous or figurative texts, this book demonstrates the importance of this epistemic instrument in both contemporary Anglo-analytic and classical Indian epistemology, language, and logic. (shrink)

The Nyāya school of classical Indian epistemology defended (by today’s standards) a radical version of epistemic externalism. They also gave arguments from their epistemological positions to an early version of disjunctivism about perceptual experience. In this paper I assess the value of such an argument, concluding that a modified version of the Nyāya argument may be defensible.

The History of Indian Philosophy is a comprehensive and authoritative examination of the movements and thinkers that have shaped Indian philosophy over the last three thousand years. An outstanding team of international contributors provide fifty-eight accessible chapters, organis[=z]ed into three clear parts: knowledge, context, concepts philosophical traditions engaging and encounters: modern and postmodern. This outstanding collection is essential reading for students of Indian philosophy. It will also be of interest to those seeking to explore the lasting significance of this rich (...) and complex philosophical tradition, and to philosophers who wish to learn about Indian philosophy through western philosophical and contemporary comparative lens. For complete Contents and authors' abstracts per chapters go to title of the book under Routledge Taylor & Francis ; it is a usual http link not allowed to enter here.> Click on the External Links below . (shrink)

A Nyaya definition the major purpose of which is efficient use of words and avoiding ambiguities and errors, is the statement of a unique feature that belongs to each definiendum and nothing else so that there is none of the three faults of overcoverage, undercoverage and failure to belong to any definiendum. There should be no circularity that is of three kinds, self-dependence (where the definiendum appears in the definiens); mutual dependence (where the definiendum and the definiens are used in (...) the definition of each other) and defining in a circle. A definition should also be economical: there are mainly three kinds of economy; economy in constitution (that avoids including anything superfluous or unnecessary to distinguish the definiendum from everything else), economy in relation (the directly related is preferable to the indirectly related) and economy in cognition (something cognitively prior is preferable to something posterior). While more than one definition is possible that need not state the essence, the test of economy is in place to avoid redundancy and provide criteria of preference among defining features that are unique and non-circular. (shrink)

Pakṣilasvāmin Vātsyāyana (c. 450 CE) is the author of the Commentary on Nyāya (Nyāya-bhāṣya), the first full commentary on the Nyāya-sūtra of Gautama (c. 150 CE), which is itself the foundational text of the school of philosophy called “Nyāya.” The Nyāya tradition is home to a number of leading voices within the classical Indian philosophical scene and is celebrated in later doxographies as one of the six “orthodox” systems of Hindu thought. Given the way that sūtra texts and their first (...) commentaries are profoundly intertwined, Vātsyāyana’s work provides a formative vision of Nyāya’s self-conception as a philosophical system as well as interpretive strategies, central lines of argumentation, and determinations of importance that later Naiyāyikas (Nyāya philosophers) often take to be as much as a given as the original text itself. Along with its sustained defense of metaphysical realism across various fronts, Nyāya is best known for its achievements in epistemology and logic, and as indicated by the title of this chapter, the lens through which we will explore Vātsyāyana’s thought is his theory of knowledge. We will give special attention to his account of the nature and importance of cognition as a guide to action and will illustrate the way in which this theme informs a number of apparently distinct elements of his project including his realism, his account of epistemic entitlement, and his notion of philosophy’s contribution to living well. (shrink)

Often translated simply as "logic," the Sanskrit word _nyāya_ means "rule of reasoning" or "method of reasoning." Texts from the school of classical Indian philosophy that bears this name are concerned with cognition, reasoning, and the norms that govern rational debate. This translation of selections from the early school of Nyāya focuses on its foundational text, the _Nyāya-sūtra_, with excerpts from the early commentaries. It will be welcomed by specialists and non-specialists alike seeking an accessible text that both represents some (...) of the best of Indian philosophical thought and can be integrated into courses on Indian philosophy, religion, and intellectual culture. (shrink)

In the Nyāyasūtras (NS), the fundamental text of the Nyāya tradition, testimony is defined as a statement of a reliable speaker (āpta). According to the NS, such a speaker should possess three qualities: competence, honesty and desire to speak. The content of a discourse, including the prescriptions, is also considered reliable due to the status of a given author and the person that communicated it. -/- The Polish philosopher J.M. Bocheński similarly stresses the role of a speaker; he holds that (...) an authoritative source (whose discourse is called testimony) should be competent and truthful. The conditions of trust and superiority also apply. According to Bocheński, being an authority entails a special relation—it has a subject, object and field. Notably, Bocheński develops his own typology of testimony by distinguishing between what he calls epistemic and deontic authority. He asks questions such as: Who can be the subject of an authoritative statement? Which features should the speaker possess? How is authority recognised? Is there a universal or an absolute authority? What is the field of authority? Moreover, which qualities should the listener possess? -/- The Nyāya philosophers, both the ancient ones, like Akṣapāda Gautama, Vātsyāyana, Vācaspati Miśra, and the contemporary scholars of Nyāya, such as B. K. Matilal and J. Ganeri, were also concerned with these issues. -/- The aim of this paper is to discuss the above points in a comparative manner. I will argue that both Bocheński’s and the Nyāya accounts share very similar perspectives and encounter analogous problems. (shrink)

The evaluation of arguments was not the sole concern of logicians in ancient India. Early Nyāya and the later Navya-Nyāya provide an interesting example of the interaction between logic and ontology. In their attempt to develop a kind of property-location logic Naiyāyikas had to consider what kind of restrictions they should impose on the residence relation between a property and its locus. Can we admit circular residence relations or infinitely descending chains of properties, each depending on its successor as its (...) locus? Early Naiyāyikas and to some extent also Navya-Naiyāyikas regard these phenomena as a kind of absurdity and they want to rule them out. Their intuitions about properties are close to well-founded systems of set theory, whereas the author of the Navya-Nyāya work Upādhidarpaṇa is a proponent of a non-well-founded property concept. Despite certain similarities with sets properties are still regarded as intensional objects in Navya-Nyāya. In the pre.. (shrink)

As a Festschrift, this book celebrates and honours the scholarly achievements of Professor Jaysankar Lal Shaw, one of the most eminent and internationally acclaimed comparative philosophers of our times. Original works by leading international philosophers and logicians are presented here, exploring themes such as: meaning, negation, perception and Indian and Buddhist systems of philosophy, especially Nyaya perspectives. -/- Professor Shaw’s untiring effort to solve some of the problems of contemporary philosophy of language, logic, epistemology, metaphysics and morals from the perspectives (...) of classical Indian philosophers or systems of philosophy is deserving of a tribute. Chapters in this volume reflect the diverse aspects of Shaw’s contribution to comparative philosophy and are organised into four sections: Language, Epistemology, Mathematics and Logic, Ethics and Politics. -/- These chapters would appeal to anyone interested in philosophy or East-West thinking, including students and professionals. Graduates and researchers with interests in epistemology, metaphysics, political philosophy, logic and non-western philosophy will find this work highly relevant. (shrink)

Knowledge is an asset that can make or break organizations. Its importance has been duly asserted in the Western management thought as well as in the Indian classical philosophical thought. The present study takes a hermeneutical approach by reviewing the Western literature related to knowledge and then trying to find congruence with the Indian philosophy of Nyaya Sutras. Nyaya is a branch of Indian philosophical thought; these thoughts were written in the form of verses called the sutras. We draw from (...) the modern knowledge management literature and compare and contrast it with selected verses of Nyaya Sutras. We find a high level of similarity between the two and discuss offerings from Nyaya Sutras that can be adopted by the modern knowledge management domain. The key aspects of our work have been consolidated in a conceptual model for knowledge management which will provide useful insights to modern management practices. (shrink)

Much of classical Hindu thought has centered on the question of self: what is it, how does it relate to various features of the world, and how may we benefit by realizing its depths? Attempting to gain a conceptual foothold on selfhood, Hindu thinkers commonly suggest that its distinctive feature is consciousness (caitanya). Well-worn metaphors compare the self to light as its awareness illumines the world of knowable objects. Consciousness becomes a touchstone to recognize the presence of a self. A (...) rock is insentient, void of consciousness, and purely an object. Selves, however, are loci of awareness and thus subjects. Some schools, most notably classical Sāṁkhya and Advaita Vedānta, take this approach to its furthest conclusion: consciousness is not only unique to the self, but is the fundamental feature of selfhood. Other putative features of the self—feelings, memories, moral responsibility, and importantly, agency (kartṛtva)—are taken to be the impositions of insentient matter (prakṛti) or symptoms of primordial illusion (avidyā). Against this position, Nyāya defends a more robust notion of selfhood, placing qualities like desire, aversion, volition, and moral responsibility alongside cognition as the self’s distinctive qualities. These various aspects of selfhood come together neatly when we consider agency. An agent performs intentional actions under her volition, which is triggered by her own cognitive and affective states. Her volitional acts further generate moral consequences which she must bear, and which are, in the Indian context, embodied in the form of karmic merit and demerit. For Nyāya, agency is, therefore, a special expression of the self’s different capacities and potentialities, which coherently binds them together. Nyāya’s view is an important contribution to Indian theories of self as it is a counterpoint to what we may call exclusively cognitive accounts of selfhood in other influential Hindu schools, as noted above. The first half of this paper will consider Nyāya’s conception of agency in relation to selfhood. The second half will discuss Nyāya’s arguments with other Hindu schools—specifically Sāṁkhya—in support of the thesis that the self must be an agent as well as a knower. (shrink)

James Robert Ballantyne taught oriental languages in India for sixteen years, producing grammars of Hindi, Sanskrit and Persian, along with translations of Hindu philosophy. In 1859, for the use of Christian missionaries, he prepared a guide to Hinduism, in English and Sanskrit. Published in two volumes in 1852, Synopsis of Science was intended to introduce his Indian pupils to Western science by using the framework of Hindu Nyaya philosophy, which was familiar to them and which Ballantyne greatly respected. Volume 1 (...) proceeds through a series of aphorisms exemplifying Western logic, forms of argument, the workings of the body and the senses, basic astronomy, geography, laws of Newtonian motion, the action of liquids, pneumatics, acoustics and optics. The second part of the volume is a Sanskrit translation. Overall, the work serves as an excellent primary source on the educational aspects of British imperialism. (shrink)

James Robert Ballantyne taught oriental languages in India for sixteen years, compiling grammars of Hindi, Sanskrit and Persian, along with translations of Hindu philosophy. In 1859, for the use of Christian missionaries, he prepared a guide to Hinduism, in English and Sanskrit. Published in two volumes in 1852, Synopsis of Science was intended to introduce his Indian pupils to Western science by using the framework of Hindu Nyaya philosophy, which was familiar to them and which Ballantyne greatly respected. This second (...) volume proceeds in similar style to the first: through a series of short paragraphs, Ballantyne introduces arithmetic, algebra, calculus, chemistry, botany, zoology, anatomy, physiology, mineralogy and geology. The second part of the volume is a Sanskrit translation. Overall, the work serves as an excellent primary source on the educational aspects of British imperialism. (shrink)

An ongoing effort, exemplified though happily not exhausted in the work of B. K. Matilal, is to present the best of classical Indian philosophy in a way that speaks to contemporary philosophical concerns, while still being historically and philologically responsible. Epistemology in Classical India: The Knowledge Sources of the Nyāya School by Stephen Phillips is expressly this kind of work. Phillips begins by explaining that his book is “for philosophers and students of philosophy, not for specialists in classical Indian thought” (...) (p. 1). His project is to engage with a range of classical texts and contemporary philosophy, in order to offer the Nyāya theory of knowledge as a coherent system. A welcome feature of .. (shrink)

From the early modern period, Western epistemologists have often been concerned with a rigorous notion of epistemic justification, epitomized in the work of Descartes: properly held beliefs require insulation from extreme skepticism. To the degree that veridical cognitive states may be indistinguishable from non-veridical states, apparently veridical states cannot enjoy high-grade positive epistemic status. Therefore, a good believer begins from what are taken to be neutral, subjective experiences and reasons outward—hopefully identifying the kinds of appearances that properly link up to (...) the world and those that do not. Good beliefs, beliefs that are justified (warranted, etc.), are those that a believer has .. (shrink)

This is an overview of the Nyaya ("Logic") school of classical Indian philosophy, focusing on the earlier period (up to roughly 1000 CE).

The intellectual culture of India presents us with highly elaborated theories of verbal cognition, known in Sanskrit philosophical literature under the generic name of sabdabodha. The theory explored in this book represents the content of the cognition derived from linguistic utterances as a paraphrase centered on a meaning element-the principal qualificand, which is qualified by other meaning elements. Thinkers of the Mimamsa, Nyaya and Vyakarana schools concern themselves with this topic, situated at the interface between epistemology, linguistics, scriptural exegesis and (...) logic, and deeply embedded in wider conceptual networks. The three competing versions of the theory and the intriguing questions they raise have never received extensive and historical treatment. -/- Debating Verbal Cognition expounds the debate between the philosophers of the three schools, setting the arguments in their philosophical, doctrinal and historical context. It provides a timeline through the history of this debate, revealing the complexity of argumentation and drawing in particular attention to the bigger picture beyond the purely linguistic stand. The central argument focuses on the capacity of the initial contexts, with the network of issues to which the theory is connected, to render intelligible the presuppositions and aims behind the complex justification of the late stages. -/- This book is an attempt to understand the rationality and internal coherence of each position, and to make sense of the reasons why the thinkers of the three schools have continued over the centuries to hold on to three mutually exclusive positions, despite the fact that none of the schools can give an all-comprehensive and unitary form of the theory. (shrink)

This article aims to follow the process of adoption of Navya-Nyāya techniques of cognitive analysis in the school of Vedic hermeneutics, Mīmāṃsā, in the sixteenth and the seventeenth centuries, in the larger context of the spread of these techniques in India. I shall argue that this process arises in Mīmāṃsā on the sidelines of the Advaita-Dvaita Vedānta controversy in South India, then subsequently flourishes in Varanasi. These techniques are adopted gradually and selectively, for not all the Mīmāṃsā thinkers choose to (...) use them. (shrink)

Philosophers affiliated with the Nyāya school of classical Indian philosophy developed an impressive species of realism. Nyāya philosophers defended direct realism in holding that we perceive bodies, not just their qualities or mental images of their qualities. This sort of realism has been out of favor for centuries in the West and faces a number of problems that the Nyāya knew and answered in a sophisticated way. Rather than focus on the Nyāya defense of direct realism, we focus on the (...) Nyāya defense of epistemological realism in order to explicate what Nyāya philosophers took to be implications of their view that we know something about the way things are in themselves. Specifically, we argue that the epistemological realism of the Nyāya philosophers commits them to a strong form of essentialism, which furthermore entails that substances exist and instantiate natural-kind universals. (shrink)

In classical India, debates over rational theology naturally become the occasion for fundamental questions about the scope and power of inference itself. This is well evinced in the classical proofs for God by the Hindu Nyāya tradition and the opposing arguments of classical Buddhists and Mīmāsā philosophers. This paper calls attention to, and provides analysis of, a number of key nodes in these debates, particularly questions of inferential boundaries and whether inductive reasoning has the power to support inferences to wholly (...) unique entities (like God). (shrink)

In this article an attempt is made to detect what could have been the dialectical reasons that impelled the Cār-vāka thinker Udbhatabhatta to revise and reformulate the classical materialistic concept of cognition. If indeed according to ancient Cārvākas cognition is an attribute entirely dependent on the physical body, for Udbhatabhatta cognition is an independent principle that, of course, needs the presence of a human body to manifest itself and for this very reason it is said to be a peculiarity of (...) the body. Therefore, Udbhatabhatta seems to de-scribe the cognizing faculty according to a double ontology: it is both a principle and a characteristic, both inde-pendent and dependent. Two philosophical contexts—Vaisesika and Nyāya schools—are here taken into account as possible anti-Cārvāka fault-finding points of view that spured Udbhatabhatta to reconsider the Cārvāka per-spective. Although we do not have so much textual material on this particular aspect of the ancient and medieval philosophical debate in India, it nonetheless can be supposed that Udbhatabhatta’s reformulation of the concept of cognition was a tentative response to the Vaisesika idea that cognition is not an attribute of the body, rather of the mind (which is here supposed to be eternal), and to the Naiyāyika perspective according to which cognition would be an attribute of an everlasting self. In the case of the Nyāya school, fortunately we have at our disposal the criticism put forward by Vātsyāyana against the materialistic conception of cognition during this time. By examining some Vātsyāyana’s objections, it will emerge that Udbhatabhatta’s idea of cognition really seems to have the aspect of a consistent answer to them, from a renewed materialistic point of view. (shrink)

In the Categories Aristotle defined substance as that which is neither predicable of nor in another. In saying that a substance is not predicable of another, Aristotle meant to exclude genera and species from the category substance. Aman is a substance but not man. In saying that a substance is not in another, Aristotle meant to exclude property particulars from the category. A man is a substance, not his color. The Categories treats substances as simples. Though a particular substance, Bucephalus (...) the horse, has parts, it is nevertheless a single entity in the category substance and, hence, incomplex in the way a black thing or a running man are not. Black things and runners are complex because they are aggregates of substances and property particulars. Even if a horse is one substance and, thus, an entity, a horse is made of parts and one may wonder how it is related to its parts, as well as how its being made of parts coheres with the definition of substance given in the Categories. (shrink)

In this book, Phillips gives an overview of the contribution of Nyaya--the classical Indian school that defends an externalist position about knowledge as well as an internalist position about justification. Nyaya literature extends almost two thousand years and comprises hundreds of texts, and in this book, Phillips presents a useful overview of the under-studied system of thought. For the philosopher rather than the scholar of Sanskrit, the book makes a whole range of Nyaya positions and arguments accessible to students of (...) epistemology who are unfamiliar with classical Indian systems. (shrink)

The problem of induction : East and West -- The later Nyaya solution -- The method of generalization : Vyaptigrahopayah -- Counterfactual reasoning : Tarkah -- Universal based extraordinary perception : Samanyalaksanapratyaksa -- Earlier views of adjuncts : Upadhivadah -- The accepted view of adjuncts : Upadhivadasiddhantah -- Classification of adjuncts : Upadhivibhagah -- Sriharsa's Khandanakhandakhadyam on pervasion -- Selected passages from Prabhacandra's Prameyakamalamartanda on critique of pervasion and inference -- Selections from Dharmakirti's Nyayabindu on non-perception as a probans.