ABSTRACT This paper offers an account of the early career of Martha Kneale, née Hurst, and of the five papers she published between 1934 and 1950. One on metaphysical and logical necessity, from 1938, is particularly interesting. In it she considers the metaphysics of time and offers an explanation of ‘the necessity of the past’, which has some resemblance to Kripke’s ideas about metaphysical necessities, in that it assigns an important role to experience in how we come to know (...) them. But Kneale’s view is very different from Kripke’s, depending not on doctrines about rigid designation but rather on recognition of the failure of the atomist/empiricist account of ‘simple’ and ‘complex’ concepts. That account cannot deal with such things as the relations of the determinates of a determinable like colour. A plausible corollary of this, which Kneale exploits, is that some of our experience reveals to us that there are phenomena which are intrinsically complex in having multiple distinguishable aspects, but where those aspects are inseparable. Other of the papers show Kneale to have been pursuing interesting lines of thought about McTaggart’s argument against the reality of time and on the mind-body problem. (shrink)

This third volume in the definitive edition of Dewey's early work opens with his tribute to George Sylvester Morris, the former teacher who had brought Dewey to the University of Michigan. Morris's death in 1889 left vacant the Department of Philosophy chairmanship and led to Dewey's returning to fill that post after a year's stay at Minnesota. Appearing here, among all his writings from 1889 through 1892, are Dewey's earliest comprehensive statements on logic and his first book on (...) ethics. Dewey's marked copy of the galley-proof for his important article The Present Position of Logical Theory, recently discovered among the papers of the Open Court Publishing Company, is used as the basis for the text, making available for the first time his final changes and corrections. The textual studies that make The Early Works unique among American philosophical editions are reported in detail. One of these, A Note on Applied Psychology, documents the fact that Dewey did not co-author this book frequently attributed to him. Six brief unsigned articles written in 1891 for a University of Michigan student publication, the Inlander, have been identified as Dewey's and are also included in this volume. In both style and content, these articles reflect Dewey's conviction that philosophy should be used as a means of illuminating the contemporary scene; thus they add a new dimension to present knowledge of his early writing. (shrink)

This third volume in the definitive edition of Dewey's early work opens with his tribute to George Sylvester Morris, the former teacher who had brought Dewey to the University of Michigan. Morris's death in 1889 left vacant the Department of Philosophy chairmanship and led to Dewey's returning to fill that post after a year's stay at Minnesota. Appearing here, among all his writings from 1889 through 1892, are Dewey's earliest comprehensive statements on logic and his first book on (...) ethics. Dewey's marked copy of the galley-proof for his important article The Present Position of Logical Theory, recently discovered among the papers of the Open Court Publishing Company, is used as the basis for the text, making available for the first time his final changes and corrections. The textual studies that make The Early Works unique among American philosophical editions are reported in detail. One of these, A Note on Applied Psychology, documents the fact that Dewey did not co-author this book frequently attributed to him. Six brief unsigned articles written in 1891 for a University of Michigan student publication, the Inlander, have been identified as Dewey's and are also included in this volume. In both style and content, these articles reflect Dewey's conviction that philosophy should be used as a means of illuminating the contemporary scene; thus they add a new dimension to present knowledge of his early writing. (shrink)

This third volume in the definitive edition of Dewey's early work opens with his tribute to George Sylvester Morris, the former teacher who had brought Dewey to the University of Michigan. Morris's death in 1889 left vacant the Department of Philosophy chairmanship and led to Dewey's returning to fill that post after a year's stay at Minnesota. Appearing here, among all his writings from 1889 through 1892, are Dewey's earliest comprehensive statements on logic and his first book on (...) ethics. Dewey's marked copy of the galley-proof for his important article The Present Position of Logical Theory, recently discovered among the papers of the Open Court Publishing Company, is used as the basis for the text, making available for the first time his final changes and corrections. The textual studies that make The Early Works unique among American philosophical editions are reported in detail. One of these, A Note on Applied Psychology, documents the fact that Dewey did not co-author this book frequently attributed to him. Six brief unsigned articles written in 1891 for a University of Michigan student publication, the Inlander, have been identified as Dewey's and are also included in this volume. In both style and content, these articles reflect Dewey's conviction that philosophy should be used as a means of illuminating the contemporary scene; thus they add a new dimension to present knowledge of his early writing. (shrink)

Jean-Paul Sartre’s early phenomenological texts reveal the complexity of his relationship to Edmund Husserl. Deeply indebted to phenomenology’s method as well as its substance, Sartre nonetheless confronted Husserl’s transcendental turn from Ideas onward. Although numerous studies have focused on Sartre’s points of contention with Husserl, drawing attention to his departure from Husserlian phenomenology, scholars have rarely examined the way in which Sartre engaged and responded to the early Husserl, particularly to his discussions of intentionality, consciousness, and self in (...) Logical Investigations. This essay focuses on Sartre’s critical response to Logical Investigations, arguing that Husserl’s understanding of these three notions shapes and informs Sartre’s own approach to them in The Transcendence of the Ego, “Intentionality: A Fundamental Idea of Husserl’s Phenomenology”, and Being and Nothingness. By carefully reading Sartre side by side with Husserl, this essay arti... (shrink)

The period from 1900 to 1935 was particularly fruitful and important for the development of logic and logical metatheory. This survey is organized along eight "itineraries" concentrating on historically and conceptually linked strands in this development. Itinerary I deals with the evolution of conceptions of axiomatics. Itinerary II centers on the logical work of Bertrand Russell. Itinerary III presents the development of set theory from Zermelo onward. Itinerary IV discusses the contributions of the algebra of logic tradition, in (...) particular, Löwenheim and Skolem. Itinerary V surveys the work in logic connected to the Hilbert school, and itinerary V deals specifically with consistency proofs and metamathematics, including the incompleteness theorems. Itinerary VII traces the development of intuitionistic and many-valued logics. Itinerary VIII surveys the development of semantical notions from the early work on axiomatics up to Tarski's work on truth. (shrink)

This book offers a detailed account of the importance of psychoanalysis in Derrida's thought. Based on close readings of texts from the whole of his career, including less well-known and previously unpublished material, it sheds new light on the crucial role of psychoanalysis in shaping Derrida's response to a number of key questions. These questions range from the psyche's relationship to technology to the role of fiction and metaphor in scientific discourse, from the relationship between memory and the archive to (...) the status of the political in deconstruction. Focusing on Freud but proposing new readings of texts by Lacan, Torok and Abraham, Laplanche and Pontalis, amongst other seminal figures in contemporary French thought, the book argues that Derrida's writings on psychoanalysis can also provide an important bridge between deconstruction and the recent materialist turn in the humanities. Challenging a still prevalent 'textualist' reading of Derrida's work, it explores the ongoing contribution of deconstruction and psychoanalysis to pressing issues in critical thought today, from the localizing models of the neurosciences and the omnipresence of digital technology to the politics of affect in an age of terror. (shrink)

The price of Bitcoin is once more soaring. From early October 2020 to early January 2021, the price of a single Bitcoin token went from roughly $10,000 to nearly $65,000, reinspiring the hopes of the crypto-faithful in the inevitability of a future beyond centralized banking and leaving the rest to dread the jargon of computational libertarianism. The speculative betting driving this recent price action, however, belies a more rudimentary and overlooked shift in the digital economy signaled by cryptocurrencies (...) and Bitcoin in particular. Unlike an earlier industrial logic that sought to reduce heat loss and improve efficiency to maximize surplus value, Bitcoin’s proof-of-work system shifts the basis of value production from efficiency to inefficiency. Moreover, it does so by using a cryptographic algorithm whose purpose is to destroy the meaning of its inputs. Through an exploration of Bitcoin’s proof-of-work technics and its inversion of traditional models of value extraction, the text argues that Bitcoin reveals a profound transformation in the nature of surplus represented by computational capitalism. (shrink)

This monograph explores the logical systems of early logicians in the Arabic tradition from a theoretical perspective, providing a complete panorama of early Arabic logic and centering it within an expansive historical context. By thoroughly examining the writings of the first Arabic logicians, al-Fārābī, Avicenna and Averroes, the author analyzes their respective theories, discusses their relationship to the syllogistics of Aristotle and his followers, and measures their influence on later logical systems. Beginning with an introduction to the (...) writings of the most prominent Arabic logicians, the author scrutinizes these works to determine their categorical logic, as well as their modal and hypothetical logics. Where most other studies written on this subject focus on the Arabic logicians’ epistemology, metaphysics, and theology, this volume takes a unique approach by focusing on the actual technical aspects and features of their logics. The author then moves on to examine the original texts as closely as possible and employs the symbolism of modern propositional, predicate, and modal logics, rendering the arguments of each logician clearly and precisely while clarifying the theories themselves in order to determine the differences between the Arabic logicians’ systems and those of Aristotle. By providing a detailed examination of theories that are still not very well-known in Western countries, the author is able to assess the improvements that can be found in the Arabic writings, and to situate Arabic logic within the breadth of the history of logic. This unique study will appeal mainly to historians of logic, logicians, and philosophers who seek a better understanding of the Arabic tradition. It also will be of interest to modern logicians who wish to delve into the historical aspects and progression of their discipline. Furthermore, this book will serve as a valuable resource for graduate students who wish to complement their general knowledge of Arabic culture, logic, and sciences. (shrink)

According to the editors, Alfred Tarski: Early work in Poland – Geometry and Teaching has three main goals. First, to publish translations so that all of Alfred Tarski's work will be accessi...

Religion and science dialogues that orbit around rational method, knowledge, and truth are often, though not always, contentious. In this article, I suggest a different cluster of gravitational points around which religion and science dialogues might usefully travel: philosophical anthropology, ethics, and love. I propose seeing morality as a natural outgrowth of the human desire to establish and maintain social bonds so as not to experience the condition of being alone. Humans, of all animals, need to feel loved—defined as a (...) compassionate present-with in dynamic dyadic relation such that one experiences the sense of mattering—but that need has an equally natural tendency to be met by creating biased us-and-them distinctions. A “critical” natural ethics, then, is one in which we become aware of and work to undermine our tendency to reify in-group distinctions between “us” and “them.” Religious communities that work intentionally on this can be seen, to some extent, as laboratories of love—or as sites for co-creating knowledge in perilous times. (shrink)

Description: Ancient Indian logic by itself is a very vast subject. The ancient Sanskrit term nyaya which was first used in a different or in a much more general sense, was later specifically applied to the Nyaya school. The physics and physiology and psychology of the Nyaya doctrine are not specifically its own, being from the first indistinguishable from those of its sister Sastra, the Vaisesika. What characterizes it specifically is the development of the nyaya or five-membered method of (...) demonstration and its insistence on the four sources of knowledge, corresponding to the first four members of its demonstrative formula, or 'Syllogism.' The importance of Nyaya is in its doctrine of the pramanas, or sources of proof, and in its formulation of the nyaya, or method of demonstration. Indian Logic in its Early Schools by H.N. Randle is an interpretation of Indian logical theory in its historical development based on the study of original texts wherever reference to Nyaya as a method of logic has been made, and thus, covers a very wide field of Indian philosophy. An indispensable work for students of Indian philosophy, it is especially important for those who are interested in Nyayadarsana in its relation to the early logic of other schools. (shrink)

Abstract:Although best known to English-speaking readers as the general editor of the Dictionary of Untranslatables, the work of French philologist and philosopher Barbara Cassin is eclectic, encompassing literary studies, ancient philosophy, rhetoric, translation theory, psychoanalysis, politics, and more. From Presocratic philosophy to more recent reflections on Big Tech and democracy, Cassin's work is rooted in "sophistics," an approach that emphasizes the primacy of language in shaping our interactions with the world. Situating this sophistical approach vis-à-vis classical philology (Bollack) and the (...) philosophical tradition (Heidegger, Derrida), this essay explores the contribution of "sophistical reading" to our understanding of philosophical and literary texts. Showing how Cassin uses rhetorical theory to problematize any simple opposition of the latter, the essay concludes with a critical evaluation of Cassin's reading of Helen, Euripides' most sophistical play. (shrink)

In Logic, Watts address proper thinking under the four basic functions of the human mind: perception, judgment, reasoning, and disposition. In part one, Watts addresses human perception, the cultivation of ideas, and how we associate them with words. In part two, Watts treats human judgment and its ability to construct various kinds of propositions, while giving guidance for avoiding the formation of bad judgments. Part three covers our ability to reason, giving instruction on the use of syllogisms for constructing (...) a good argument. Part four discusses the mind's disposition as a method of arranging our thoughts for better understanding and memory. (shrink)

In 1931 Kurt Gödel published his incompleteness results, and some years later Church and Turing showed that the decision problem for certain systems of symbolic logic has a negative solution. However, already in 1921 the young logician Emil Post worked on similar problems which resulted in what he called an “anticipation” of these results. For several reasons though he did not submit these results to a journal until 1941. This failure ‘to be the first’, did not discourage him: his (...) contributions to mathematical logic and its foundations should not be underestimated. It is the purpose of this article to show that an interest in the early work of Emil Post should be motivated not only by this historical fact, but also by the fact that Post’s approach and method differs substantially from those offered by Gödel, Turing and Church. In this paper it will be shown how this method evolved in his early work and how it finally led him to his results. (shrink)

A common analysis of Edmund Husserl’s early works on the philosophy of logic and mathematics presents these writings as the result of a combination of two distinct strands of influence: on the one hand a mathematical influence due to his teachers is Berlin, such as Karl Weierstrass, and on the other hand a philosophical influence due to his later studies in Vienna with Franz Brentano. However, the formative influences on Husserl’s early philosophy cannot be so cleanly (...) separated into a philosophical and a mathematical pathway. Growing evidence indicates that a Brentanist philosophy of mathematics was already in place before Husserl. Rather than an original combination at the confluence of two different streams, his early writings represent an elaboration of topics and problems that were already being discussed in the School of Brentano within a pre-existing framework. The traditional account understandably neglects Brentano’s own work on the philosophy of mathematics and logic, which can be found mostly in his unpublished manuscripts and lectures, and various works by Brentano’s students on the philosophy of mathematics which have only recently emerged from obscurity. Husserl’s early works must be correctly placed in this preceding context in order to be fully understood and correctly assessed. (shrink)

This paper considers the nature of the changes that took place in logic teaching at the University of Oxford from the beginning of the sixteenth century, when students attended university lectures on Aristotle’s texts as well as studying short works dealing with specifically medieval developments, to the beginning of the eighteenth century when teaching was centred in the colleges, the medieval developments had largely disappeared, and manuals summarizing Aristotelian logic were used. The paper also considers the reasons (...) for these changes, including changes in English society, and the effect of humanism and the more scholarly Aristotelianism that it produced. (shrink)

Discussion of Wittgenstein's Tractatus is currently dominated by two opposing interpretations of the work: a metaphysical or realist reading and the 'resolute' reading of Diamond and Conant. Marie McGinn's principal aim in this book is to develop an alternative interpretative line, which rejects the idea, central to the metaphysical reading, that Wittgenstein sets out to ground the logic of our language in features of an independently constituted reality, but which allows that he aims to provide positive philosophical insights into (...) how language functions. McGinn takes as a guiding principle the idea that we should see Wittgenstein's early work as an attempt to eschew philosophical theory and to allow language itself to reveal how it functions. By this account, the aim of the work is to elucidate what language itself makes clear, namely, what is essential to its capacity to express thoughts that are true or false. However, the early Wittgenstein undertakes this descriptive project in the grip of a set of preconceptions concerning the essence of language that determine both how he conceives the problem and the approach he takes to the task of clarification. Nevertheless, the Tractatus contains philosophical insights, achieved despite his early preconceptions, that form the foundation of his later philosophy. -/- The anti-metaphysical interpretation that is presented includes a novel reading of the problematic opening sections of the Tractatus, in which the apparently metaphysical status of Wittgenstein's remarks is shown to be an illusion. The book includes a discussion of the philosophical background to the Tractatus, a comprehensive interpretation of Wittgenstein's early views of logic and language, and an interpretation of the remarks on solipsism. The final chapter is a discussion of the relation between the early and the later philosophy that articulates the fundamental shift in Wittgenstein's approach to the task of understanding how language functions and reveal the still more fundamental continuity in his conception of his philosophical task. (shrink)

Ibn Wasil (d. 1298), perhaps better known today as a historian and an emissary to the court of King Manfred in southern Italy, was also an eminent logician. The present work is a critical edition of his main work in the field, a commentary on his teacher Khunaji's (d. 1248) handbook al-Jumal. The work helped consolidate the logic of the "later scholars" (such as Khunaji). It also shows that commentators did much more than merely explain the original work and (...) instead regularly discussed and assessed received views. Ibn Wasil's work was an influential contribution to a particularly dynamic chapter in the history of Arabic logic. (shrink)

Ibn Wasil (d. 1298), perhaps better known today as a historian and an emissary to the court of King Manfred in southern Italy, was also an eminent logician. The present work is a critical edition of his main work in the field, a commentary on his teacher Khunaji's (d. 1248) handbook al-Jumal. The work helped consolidate the logic of the "later scholars" (such as Khunaji). It also shows that commentators did much more than merely explain the original work and (...) instead regularly discussed and assessed received views. Ibn Wasil's work was an influential contribution to a particularly dynamic chapter in the history of Arabic logic. (shrink)

Wolff's German Logic 1713 was a text book for Philosophy Students for many years.

John Dewey is celebrated for his work in the philosophy of education and acknowledged as a leading proponent of American pragmatism. His philosophy of logic, on the other hand, is largely unheard of. In Dewey's New Logic, Burke analyzes portions of the debate between Dewey and Bertrand Russell that followed the 1938 publication of Dewey's Logic: The Theory of Inquiry. Burke shows how Russell failed to understand Dewey, and how Dewey's philosophy of logic is centrally relevant (...) to contemporary developments in philosophy and cognitive science. Burke demonstrates that Russell misunderstood crucial aspects of Dewey's theory and contends that logic today, having progressed well beyond Russell's early views, is approaching Dewey's broader perspective. -/- "[This] book should be of substantial interest not only to Dewey scholars and other historians of twentieth-century philosophy, but also to devotees of situation theory, formal semantics, philosophy of mind, cognitive science, and Artificial Intelligence."--Georges Dicker, Transactions of the C.S. Peirce Society "No scholar, thus far, has offered such a sophisticated and detailed version of central themes and contentions in Dewey's Logic . This is a pathbreaking study."--John J. McDermott, editor of The Philosophy of John Dewey. (shrink)

This article introduces the first English translation of one of Tanabe’s early essays on metaphysics. It questions the relation of the universal to the particular in context of logic, phenomenology, Neo-Kantian epistemology, and classical metaphysics. Tanabe provides his reflections on the nature of the concept of universality and its constitutive relation to phenomenal particulars through critical analyses of the issue as it is discussed across various schools of philosophy including: British Empiricism, the Marburg School, the Austrian School, the (...) Kyoto School, and Platonism. In this essay, Tanabe reveals his ability to think metaphysically the ground for the possibility of reasoning and dares to voice his own thought beyond references to the most prominent thinkers of his time from distinct intellectual traditions in both the east and the west. This essay, therefore, demonstrates that his strong tendency to move beyond the received epistemology and phenomenology of the European intellectual tradition to metaphysics was already present in the early days of his academic life and thereby marks a more general contribution of the Kyoto School of Philosophy to distinct European schools of thought in the early twentieth century. (shrink)

Antoine Arnauld and Pierre Nicole were philosophers and theologians associated with Port-Royal Abbey, a centre of the Catholic Jansenist movement in seventeenth-century France. Their enormously influential Logic or the Art of Thinking, which went through five editions in their lifetimes, treats topics in logic, language, theory of knowledge and metaphysics, and also articulates the response of 'heretical' Jansenist Catholicism to orthodox Catholic and Protestant views on grace, free will and the sacraments. In attempting to combine the categorical theory (...) of the proposition with a Cartesian account of knowledge, their Logic represents the classical view of judgment which inspired the modern transformation in logic and semantic theory by Frege, Russell, Wittgenstein and recent philosophers. This edition presents a new translation of the text, together with a historical introduction and suggestions for further reading. (shrink)

Understanding social cognition referring to narratives without relying on mindreading skills has been the main aim of the Narrative Practice Hypothesis proposed by Daniel Hutto and Shaun Gallagher. In this paper, I offer a semiotic reformulation of the NPH, expanding the notion of narrative beyond its conventional common-sense understanding and claiming that the kind of social cognition that operates in implicit false belief task competency is developed out of the narrative logic of interaction. I will try to show how (...) experience is shaped through meaning by the structure of narrativity and the way this can account for how narrative competencies do not just depend on language acquisition, but permeate the interactive competencies of pre-linguistic children and some social non-human animals. Developing during primary and secondary intersubjectivity and rooted in the semiotic ability to deceive and manipulate others, semiotic narrativity is the key bridge that leads us to mind and beliefs starting from basic perceptions, emotions and embodied enactive interactions. I will test my Narrative Practice Semiotic Hypothesis on Autism spectrum disorders, where social cognition skills don’t work properly, connecting NPSH to the Social Motivation Theory of Autism. I will finally answer some criticisms towards the original NPH, connecting its semiotic reformulation to early mindreading in infants and to some very recent experiments by Krupeneye et al. and Buttelmann et al. about false beliefs understanding in primates. (shrink)

This book makes available to the English reader nearly all of the shorter philosophical works, published or unpublished, that Husserl produced on the way to the phenomenological breakthrough recorded in his Logical Investigations of 1900-1901. Here one sees Husserl's method emerging step by step, and such crucial substantive conclusions as that concerning the nature of Ideal entities and the status the intentional `relation' and its `objects'. Husserl's literary encounters with many of the leading thinkers of his day illuminates both (...) the context and the content of his thought. Many of the groundbreaking analyses provided in these texts were never again to be given the thorough expositions found in these early writings. Early Writings in the Philosophy of Logic and Mathematics is essential reading for students of Husserl and all those who enquire into the nature of mathematical and logical knowledge. (shrink)

In reading the Tractatus, one gets the impression that Wittgenstein, having resolved to his satisfaction the problems about language, logic, science, and mathematics, sets these painstakingly articulated findings in a disproportionately skimpy setting. There is a perfunctory ontology at the beginning, which is highly original as well as austere and perplexing; and at the end he hurries even more than usual through ethics, aesthetics and religion—as if the silence was already coming upon him, prematurely. The Notebooks 1914–1916 help a (...) good deal in understanding this skimpy setting. They give little direct indication of the ontological overture, apart from their frequent reiteration that there must be simples of some sort if the sense of expressions is to be determinate, but they give a fuller treatment to the other topics. This is particularly true of the latter half of 1916, when this parcel of topics seems to have become uppermost in Wittgenstein’s mind. Though it is exceedingly difficult to know what to make of what are in effect discarded notes, some of the entries are just too interesting to ignore. I wish to consider what light they throw on his thought at roughly the Tractatus period, and in particular on the ontology that apparently springs up full grown at the beginning of the Tractatus. (shrink)

This article aims to restore a way to approach Derrida by revisiting the essentialist ‘logic’ that Leonard Lawlor put forward in 2002. Lawlor argues that the early Derrida developed a ‘logic of totality’ from Hyppolite's reading of Hegel, which formed the basis for a ‘logic of contamination’ and différance; moreover, Lawlor demonstrated such progress. We will situate his implicit premises before following his sequential argument, and thus isolate how Lawlor is aware that Derrida disputes Hyppolite's basic (...) premises and outcomes, so as to suggest the difficulty is methodological. By that we will support Lawlor's discovery that Derrida's earliest work can be approached ‘logically’, so as to help re-orientate both an approach and strands of thought that Derrida helped to inspire. (shrink)

This volume will be of particular interest to researchers working in the history, and in the philosophy, of logic and mathematics, and more generally, to ...

The History of Philosophical and Formal Logic introduces ideas and thinkers central to the development of philosophical and formal logic. From its Aristotelian origins to the present-day arguments, logic is broken down into four main time periods: Antiquity and the Middle Ages The early modern period High modern period Early 20th century Each new time frame begins with an introductory overview highlighting themes and points of importance. Chapters discuss the significance and reception of influential (...) class='Hi'>works and look at historical arguments in the context of contemporary debates. To support independent study, comprehensive lists of primary and secondary reading are included at the end of chapters, along with exercises and discussion questions. By clearly presenting and explaining the changes to logic across the history of philosophy, The History of Philosophical and Formal Logic constructs an easy-to-follow narrative. This is an ideal starting point for students looking to understand the historical development of logic. (shrink)

The emergence of analytic philosophy has often been seen as inaugurating a linguistic turn in philosophy, a turn with profound anti-metaphysical implications. Metaphysics and epistemology, on this view, were replaced by logic and philosophy of language as forming the basis of philosophy. But if we look at the work of the four founders of analytic philosophy, Frege, Russell, Moore and Wittgenstein, we find metaphysical conceptions at the heart of their endeavours. Frege, for example, regarded numbers and the truth-values as (...) logical objects, and the ontological distinction between concept and object was fundamental to his philosophy. Both Russell and Moore in their early work developed a realist view of propositions, and even when Russell abandoned the metaphysics of propositions in his later work, this was simply replaced by a metaphysics of facts. Wittgenstein, too, in the Tractatus, articulated a raft of theses that seem paradigmatically metaphysical, though their precise status has been controversial. In this paper I outline some of the key metaphysical conceptions of Frege, Russell, Moore and the early Wittgenstein, and explore the connections with their logical views, taking as my main example the problem of relational propositions. I end by addressing the question of the status of the metaphysical statements that Frege and Wittgenstein, in particular, found themselves making. (shrink)

This is the sequel to Logic. A disciplined mind is one of the most conspicuously missing things in our society. This book can help alleviate that malady. The subtitle of this book is, "Communication of useful knowledge in religion, in the sciences, and in common life." This is a lithograph of an 1833 edition printed in London which also contains "A Discourse on the Education of Children and Youth.".

This is the first of a three-volume anthology intended as a companion to The Cambridge History of Later Medieval Philosophy. Volume 1 is concerned with the logic and the philosophy of language, and comprises fifteen important texts on questions of meaning and inference that formed the basis of Medieval philosophy. As far as is practicable, complete works or topically complete segments of larger works have been selected. The editors have provided a full introduction to the volume and (...) detailed introductory headnotes to each text; the volume is also indexed comprehensively. (shrink)

Study on the commentaries sapta-pramāṇaśāstra (Buddhist logical doctrines) by Ācharya Dignāga, 5th century.

This book sets out for the first time in English and in the terms of modern logic the semantics of the Port Royal Logic of Antoine Arnauld and Pierre Nicole, perhaps the most influential logic book in the 17th and 18th centuries. Its goal is to explain how the Logic reworks the foundation of pre-Cartesian logic so as to make it compatible with Descartes' metaphysics. The Logic's authors forged a new theory of reference based (...) on the medieval notion of objective being, which is essentially the modern notion of intentional content. Indeed, the book's central aim is to detail how the Logic reoriented semantics so that it centered on the notion of intentional content. This content, which the Logic calls comprehension, consists of an idea's defining modes. Mechanisms are defined in terms of comprehension that rework earlier explanations of central notions like conceptual inclusion, signification, abstraction, idea restriction, sensation, and most importantly within the Logic's metatheory, the concept of idea-extension, which is a new technical concept coined by the Logic. Although Descartes is famous for rejecting "Aristotelianism," he says virtually nothing about technical concepts in logic. His followers fill the gap. By putting to use the doctrine of objective being, which had been a relatively minor part of medieval logic, they preserve more central semantic doctrines, especially a correspondence theory of truth. A recurring theme of the book is the degree to which the Logic hews to medieval theory. This interpretation is at odds with what has become a standard reading among French scholars according to which this 16th-century work should be understood as rejecting earlier logic along with Aristotelian metaphysics, and as putting in its place structures more like those of 19th-century class theory. (shrink)

It is beginning to be rather well known that Edmund Husserl, the founder of phenomenological philosophy, was originally a mathematician; he studied with Weierstrass and Kronecker in Berlin, wrote his doctoral dissertation on the calculus of variations, and was then a colleague of Cantor in Halle until he moved to the Göttingen of Hilbert and Klein in 1901. Much of Husserl’s writing prior to 1901 was about mathematics, and arguably the origin of phenomenology was in Husserl’s attempts to give philosophical (...) foundations first for analysis and later for the formal sciences in general. However, what exactly Husserl’s thoughts about mathematics were is relatively little known. Stefania Centrone’s book Logic and Philosophy of Mathematics in the Early Husserl fills this lacuna. Centrone deciphers Husserl’s early texts about mathematics and logic somewhat selectively, but also extremely accurately and carefully into lucid English and in terms we know, without however reading contemporary views into Husserl’s views. Her analysis reveals for example that Husserl’s view of logic is close to what is today taught in the standard textbooks and that he viewed abstract mathematics as a theory of structures. Her work also uncovers Husserl’s relationship to the algebraists of logic as well as to Bolzano, Frege, and Hilbert.The book is composed of three rather independent chapters. In contrast to most of the other commentaries on early Husserl, the organization of the book is thematic rather than an attempt to document the various stages in the development of Husserl’s views. The first chapter discusses Husserl’s major work on arithmetic, the second the idea of pure logic, and the last the imaginary in mathematics. (shrink)

This article presents evidence supporting the claim that ethical reasoning is a skill that can be taught and assessed. We propose a working definition of ethical reasoning as 1) the ability to identify, analyze, and weigh moral aspects of a particular situation, and 2) to make decisions that are informed and warranted by the moral investigation. The evidence consists of a description of an ethical reasoning education program—Ethical Reasoning in Action —designed to increase ethical reasoning skills in a variety of (...) situations and areas of life. ERiA is housed at a public, major comprehensive U.S. university—James Madison University—and assessment of the program focuses on interventions delivered prior to and during orientation for incoming first-year students. Findings indicate that the interventions measurably enhance the ability of undergraduate students to reason ethically. ERiA’s competency-targeted program and positive student learning outcomes offers a promising model for higher education ethics programs seeking to connect classroom learning in ethics to decision-making in everyday life. (shrink)

The main purpose of this work is to provide an English translation of and commentary on a recently published Arabic text dealing with con ditional propositions and syllogisms. The text is that of A vicenna (Abu represents his views on the subject as they were held throughout his life.

The Joint International Conference on Logic Programming, sponsored by the Association for Logic Programming, is a major forum for presentations of research, applications, and implementations in this important area of computer science. Logic programming is one of the most promising steps toward declarative programming and forms the theoretical basis of the programming language Prolog and its various extensions. Logic programming is also fundamental to work in artificial intelligence, where it has been used for nonmonotonic and commonsense (...) reasoning, expert systems implementation, deductive databases, and applications such as computer-aided manufacturing. Krzysztof R. Apt is project leader at the Centre for Mathematics and Computer Science in Amsterdam and part-time Professor in Computer Science at the University of Amsterdam. Topics covered: Theory Foundations. Programming Languages. Implementation. Programming Methodologies and Tools. Applications. Deductive Databases. Artificial Intelligence. Parallelism. (shrink)

Background While it is generally acknowledged that self-prescribing among physicians poses some risk, research finds such behaviour to be common and in certain cases accepted by the medical community. Largely absent from the literature is knowledge about other activities doctors perform for their own medical care or for the informal treatment of family and friends. This study examined the variety, frequency and association of behaviours doctors report providing informally. Informal care included prescriptions, as well as any other type of personal (...) medical treatment (eg, monitoring chronic or serious conditions). Method A survey was sent to 2500 randomly-selected physicians in Colorado, 600 individuals returned questionnaires with usable data. The authors hypothesised: (1) physicians would prescribe the same types of treatment at home as they prescribed professionally; and (2) physicians who informally prescribed addictive medications would be more likely to engage in other types of informal medical care. Results Physicians who wrote prescriptions for antibiotics, psychotropics and opioids at work were more likely to prescribe these medications at home. Those prescribing addictive drugs outside of the office treated more serious illnesses in emergency situations, more chronic conditions and more major medical/surgical conditions informally than did those not routinely prescribing addictive medications. Physicians reported a variety of informal care behaviour and high frequency of informal care to family and friends. Discussion The frequency and variety of informal care reported in this study strongly argues for profession-wide discussion about ethical and guideline considerations for such behaviour. These areas are discussed in the paper. (shrink)