Albert Lautman (1908-1944) was a French philosopher of mathematics whose work played a crucial role in the history of contemporary French philosophy. His ideas have had an enormous influence on key contemporary thinkers including Gilles Deleuze and Alain Badiou, for whom he is a major touchstone in the development of their own engagements with mathematics. Mathematics, Ideas and the Physical Real presents the first English translation of Lautman's published works between 1933 and his death in 1944. Rather (...) than being preoccupied with the relation of mathematics to logic or with the problems of foundation, which have dominated philosophical reflection on mathematics, Lautman undertakes to develop an understanding of the broader structure of mathematics and its evolution. The two powerful ideas that are constants throughout his work, and which have dominated subsequent developments in mathematics, are the concept of mathematical structure and the idea of the essential unity underlying the apparent multiplicity of mathematical disciplines. This collection of his major writings offers readers a much-needed insight into his influence on the development of mathematics and philosophy. (shrink)

Lautman synthétise dans ce rapport quelques idées centrales qui seront par la suite développées dans ses Thèses . Il s’agit d’un manuscrit inédit, qui semble être le premier texte scientifique du jeune philosophe. Lautman étudie le local et le global suivant Galois, Riemann, Hilbert et Cartan, et propose une hypothèse sur les rapports structurels généraux du local et du global, qui préfigure l’essor de la théorie des faisceaux, laquelle apparaîtra une dizaine d’années après.Lautman synthetizes some of the (...) main ideas that will be developped in his Thesis . It is an unpublished manuscript, which may be the first scientific text of the young philosopher. Lautman studies the local/global dialectics, following Galois, Riemann, Hilbert and Cartan, and proposes an hypothesis on general structural relations between local and global, very close to the sheaf theory paradigm which will emerge ten years later. (shrink)

The first English collection of the work of Albert Lautman, a major figure in philosophy of mathematics and a key influence on Badiou and Deleuze.

1. ptie. Les schémas de structure -- 2.ptie. Les schémas de genèse.

Nous posons l'oeuvre d'Albert Lautman comme une sorte d'opérateur de brisure de symétrie dans le cadre de l'opposition traditionnelle de la philosophie spéculative et des sciences physico-mathématiques. L'enjeu pour la philosophie en est, à de très rares exceptions près, encore très mal perçu. Sur ce plan, nous reprenons la question du « platonisme » supposé de Lautman, et nous le confrontons à sa lecture fondamentale de Martin Heidegger. Les conséquences de cette inscription dans le sillon heideggérien sont (...) fondamentales pour une juste restitution de cette pensée et de cette philosophie dans ce qu'elles conservent de plus actuel. Sur l'autre versant, celui des percées lautmaniennes dans le champ de la physique mathématique, nous insistons sur l'extrême alacrité prospectiviste de son regard, sa puissance philosophique venant renforcer cette singulière sensibilité à ce qui fit l'essentiel des mathématiques et de la physique théorique de son temps. En ce sens, sa position occupe bel et bien l'un des points nodaux du site « surrationaliste ». (shrink)

It is possible today to observe in hindsight the epistemological landscape of the twentieth century, and the work of Albert Lautman in mathematical philosophy appears as a profound turning point, opening to a true under- standing of creativity in mathematics and its relation with the real. Little understood in its time or even today, Lautman’s work explores the difficult but exciting intersection where modern mathematics, advanced mathe- matical invention, the structural or unitary relations of mathematical knowledge and, (...) finally, the metaphysical and dialectical tensions underly- ing mathematical activity converge. Well beyond other better-known names in philosophy of mathematics – who are focused above all on ques- tions concerning the logical problem of foundations, important but frag- mentary studies in the vast panorama of modern mathematics – Lautman broaches the emergence of inventiveness in the very broad spectrum of the development of the mathematical real. Group theory, differential geome- try, algebraic topology, differential equations, functional analysis, functions of complex variables and number fields are some of the domains of his preferred examples. He detects in them methods of construction, structu- ration and unification of modern mathematics that he connects to a precise Platonic interpretation in which powerful pairs of ideas serve to organize the edifice of effective mathematics. (shrink)

Albert Lautman. Mathematics, Ideas and the Physical Real. Simon B. Duffy, trans. London and New York: Continuum, 2011. 978-1-4411-2344-2 (pbk); 978-1-44114656-4 (hbk); 978-1-44114433-1 (pdf e-bk); 978-1-44114654-0 (epub e-bk). Pp. xlii + 310.

Dans cet article, j’explore dans un premier temps la conception que se fait Lautman de la dialectique en examinant ses références à Platon et Heidegger. Je compare ensuite les structures dialectiques identifiées par Lautman dans les mathématiques contemporaines avec celles qui émergent de ses sources philosophiques. Enfin, je soutiens que les structures qu’il a découvertes dans les mathématiques sont plus riches que le suggère son modèle platonicien, et que la distinction « ontologique » de Heidegger est moins utile (...) que semblait le penser Lautman. -/- In this paper, I first explore Lautman’s conception of dialectics by a consideration of his references to Plato and Heidegger. I then compare the dialectical structures that he found in contemporary mathematics with the model that emerges from his philosophical sources. Finally, I argue that the structures that he discovered in mathematics are richer than his Platonist model suggests, and that Heidegger’s “ontological” distinction is less useful than Lautman seemed to believe. (shrink)

In October 1984, Bruno Huisman stated with regards to Jean Cavaillès, ‘Let us be honest, or at least realistic: today, one can be a professor of philosophy without ever having read a single line of Cavaillès. Often invoked, sometimes quoted, the oeuvre of Cavaillès is little attended for itself’ (Huisman 1984). As for Albert Lautman, it would seem that the situation is even more extreme. In 1994, the publisher Hermann, under the impetus of Bruno Huisman and George Canguilhem, (...) collected almost the totality of the Jean Cavaillès papers in one volume (Oeuvres complètes de philosophie des sciences (Cavaillès 1994)). But, the Essai sur l’unité des mathématiques et divers écrits (Lautman 1977), published by the Union générale d’Éditions in 1977, had all but disappeared by the early 1980s and yet was never republished! This will remain one of the great indignities of French publishing, for as Jean Petitot rightly affirms: ‘Regarded as too speculative, in spite of his exceptional mathematical scholarship and his close connection with Hilbertian axiomatic structuralism, his mathematical philosophy has, until now, been devoid of any particular attention …. We would like to state clearly from the start, Albert Lautman represents, in our view, without exaggeration, one of the most inspired philosophers of this century’ (Petitot 1987, 79-80). (shrink)

In the chapter of Difference and Repetition entitled ‘Ideas and the synthesis of difference,’ Deleuze mobilizes mathematics to develop a ‘calculus of problems’ that is based on the mathematical philosophy of Albert Lautman. Deleuze explicates this process by referring to the operation of certain conceptual couples in the field of contemporary mathematics: most notably the continuous and the discontinuous, the infinite and the finite, and the global and the local. The two mathematical theories that Deleuze draws upon for (...) this purpose are the differential calculus and the theory of dynamical systems, and Galois’ theory of polynomial equations. For the purposes of this paper I will only treat the first of these, which is based on the idea that the singularities of vector fields determine the local trajectories of solution curves, or their ‘topological behaviour’. These singularities can be described in terms of the given mathematical problematic, that is for example, how to solve two divergent series in the same field, and in terms of the solutions, as the trajectories of the solution curves to the problem. What actually counts as a solution to a problem is determined by the specific characteristics of the problem itself, typically by the singularities of this problem and the way in which they are distributed in a system. Deleuze understands the differential calculus essentially as a ‘calculus of problems’, and the theory of dynamical systems as the qualitative and topological theory of problems, which, when connected together, are determinative of the complex logic of different/ciation. (DR 209). Deleuze develops the concept of a problematic idea from the differential calculus, and following Lautman considers the concept of genesis in mathematics to ‘play the role of model ... with respect to all other domains of incarnation’. While Lautman explicated the philosophical logic of the actualization of ideas within the framework of mathematics, Deleuze (along with Guattari) follows Lautman’s suggestion and explicates the operation of this logic within the framework of a multiplicity of domains, including for example philosophy, science and art in What is Philosophy?, and the variety of domains which characterise the plateaus in A Thousand Plateaus. While for Lautman, a mathematical problem is resolved by the development of a new mathematical theory, for Deleuze, it is the construction of a concept that offers a solution to a philosophical problem; even if this newly constructed concept is characteristic of, or modelled on the new mathematical theory. (shrink)

La question fondamentale d’Albert Lautman concerne la nature du réel et la capacité de l’esprit de l’appréhender. C’est pourquoi elle convoque les données de la physique, leur expression en concepts mathématiques et leur interprétation métaphysique qui doit préciser le rapport de la pensée humaine à la réalité du monde. L’examen des théories mathématiques les plus sophistiquées de son temps est destinée à montrer l’affinité de la genèse des concepts mathématiques avec une Dialectique supérieure, qui met en jeu les (...) Idées, comprises en un sens dérivé de Platon. Mon but est d’expliquer comment Lautman comprend les termes « Dialectique », « Idée », « genèse », simultanément sur le plan métaphysique et dans leur incarnation mathématique. Je montrerai que Lautman développe une conception très personnelle du platonisme, différente de celle de la version reçue par la tradition philosophique. Lautman rejette la séparation des Idées et du sensible, et adopte le style de pensée heideggerien pour montrer que les Idées sont mues par une Dialectique et qu’elles entretiennent une relation réciproque, dialectique, avec le sensible.Albert Lautman’s main questioning was about the nature of reality and the capacity of mind to grasp reality. The answer needs to go at the same time into the laws and tools of physics and the corresponding concepts of mathematics, and to search for the metaphysical interpretation that could give an account of the relation between scientific thought and reality. The examination of the most sophisticated mathematical theories was intended to show the affinity between the generation of mathematical concepts and the dialectical movement of Ideas. My aim is to explain how Lautman understood ‘Idea’, ‘Dialectic’, ‘genesis’ at once in a mathematical and in a metaphysical meaning. I will point out that Lautman had a very personal conception of Platonism, very different from Platonism of mathematicians of his time and very different from the traditional interpretation developed in philosophy. Lautman did not assume the separation between Ideas and the sensible world. By contrast, he adopted the Heideggerian style of thought to show the Dialectic between Ideas and the reciprocal relation between Ideas and the sensible. (shrink)

Albert Lautman,.philosophe, juif, fusillé par les Nazis pour faits de Résistance comme son ami et collègue Jean Cavaillès, a laissé inachevée une œuvre puissante et dont l'influence s'est fait sentir au-delà de son domaine. Lautman est une figure rare : un philosophe souverain, capable de mobiliser les grands noms de la tradition philosophique, de Platon à Heidegger, et suffisamment averti des mathématiques pour proposer une intelligence de leur développement acceptée des savants. Les membres du groupe Bourbaki ont (...) reconnu en Lautman un auteur exposant adéquatement les mathématiques auxquelles ils contribuaient ; Deleuze se réfère à lui de manière élogieuse ; Badiou, Petitot et Salanskis, notamment, lui font écho ou tentent de le prolonger. On examine ici cette œuvre dense, depuis Essai sur les notions de structure et d'existence en mathématiques et Essai sur l'unité des sciences mathématiques dans leur développement actuel aux textes posthumes, Symétrie et dissymétrie en mathématiques et en physique suivi du Problème du temps, après l'avoir située dans son contexte historique-scientifique. On espère ainsi montrer la profondeur et l'actualité d'une pensée singulière, celle d'un grand rationaliste qui était aussi un métaphysicien. (shrink)

Albert Lautman (b. 1908–1944) was a philosopher of mathematics whose views on mathematical reality and on the philosophy of mathematics parted with the dominant tendencies of mathematical epistemology of the time. Lautman considered the role of philosophy, and of the philosopher, in relation to mathematics to be quite specific. He writes that: ‘in the development of mathematics, a reality is asserted that mathematical philosophy has as a function to recognize and describe’ (Lautman 2011, 87). He goes (...) on to characterize this reality as an ‘ideal reality’ that ‘governs’ the development of mathematics. The relation between mathematical problems as they arise in the historical development of mathematics and the solutions that are provided to these problems by mathematicians, in the form of new mathematical theories, definitions or axioms, are governed by a what Lautman characterises as a dialectics of mathematics. The aim of this paper is to give an account of this Lautmanian dialectic and of how it can be understood to govern the development of solutions to mathematical problems. (shrink)

In Différence et répétition, Deleuze's ontology is structured by his theory of dialectical Ideas or problems, which draws features from Plato, Kant, and classical calculus. Deleuze unifies these features through a theory of Ideas/problems developed by the mathematician and philosopher Albert Lautman. Lautman worked to explain the nature of the problems or dialectical Ideas mathematics engages and the solutions or mathematical theories endeavouring to understand them. Lautman drew upon Heidegger to do this. This article clarifies Deleuze's (...) theory of dialectical Ideas/problems by analysing its debts to Lautman and Heidegger and demonstrates a Heideggerian influence on Deleuze via Lautman. (shrink)

Dans sa thèse complémentaire intitulée « Essai sur l’unité des sciences mathématiques dans leur développement actuel » Albert Lautman analysa la question de l’unité des mathématiques en considérant différentes paires antithétiques de concepts mathématiques, notamment le continu et le discret. Dans le cadre de sa refonte de la géométrie algébrique abstraite, le mathématicien français Alexandre Grothendieck considéra également l’opposition traditionnelle du continu et du discret selon un cadre conceptuel fort similaire à celui de Lautman. En comparaison, l’introduction (...) du concept de topos lui permit de donner une réponse strictement mathématique et parfaitement claire à cette question.Albert Lautman’s complementary thesis, entitled “Essai sur l’unité des sciences mathématiques dans leur développement actuel”, analysed the unity of mathematics through various antithetical pairs of mathematical concepts such as the continuous and the discrete. As part of his renewal of abstract algebraic geometry, French mathematician Alexandre Grothendieck also considered the traditional opposition between the continuous and the discrete and adopted a conceptual framework very similar to that of Lautman. However, the topos concept allowed Grothendieck to come up with a purely mathematical and, in comparison, much clearer solution. (shrink)

Blending social analysis and philosophy, Albert Borgmann maintains that technology creates a controlling pattern in our lives.

The major divide in contemporary epistemology is between those who embrace and those who reject a priori knowledge. Albert Casullo provides a systematic treatment of the primary epistemological issues associated with the controversy. By freeing the a priori from traditional assumptions about the nature of knowledge and justification, he offers a novel approach to resolving these issues which assigns a prominent role to empirical evidence. He concludes by arguing that traditional approaches to the a priori, which focus primarily on (...) the concepts of necessity and analyticity, are misguided. (shrink)

One of the most influential works of this century, The Myth of Sisyphus and Other Essays is a crucial exposition of existentialist thought. Influenced by works such as Don Juan and the novels of Kafka, these essays begin with a meditation on suicide; the question of living or not living in a universe devoid of order or meaning. With lyric eloquence, Albert Camus brilliantly posits a way out of despair, reaffirming the value of personal existence, and the possibility of (...) life lived with dignity and authenticity. (shrink)

Charles Sanders Peirce is generally regarded as the founder of pragmatism, and one of the greatest ever American philosophers. Peirce is also widely known for his work on truth, his foundational work in mathematical logic, and an influential theory of signs, or semiotics. Albert Atkin introduces the full spectrum of Peirce’s thought for those coming to his work for the first time. The book begins with an overview of Peirce’s life and work, considering his early and long-standing interest in (...) logic and science, and highlighting important views on the structure of philosophical thought. Atkin then explains Peirce’s accounts of pragmatism and truth examining important later developments to these theories. He then introduces Peirce’s full accounts of semiotics, examines his foundational work on formal and graphical logic, and introduces Peirce’s account of metaphysics, the least understood aspect of his philosophy. The final chapter considers Peirce’s legacy and influence on the thought of philosophers such as John Dewey and Richard Rorty, as well as highlighting areas where Peirce’s ideas could still provide important insights for contemporary philosophers. Including chapter summaries, suggestions for further reading and a glossary, this invaluable introduction and guide to Peirce’s philosophy is essential reading for those new to his work. (shrink)

America is a wonderful and magnificent country that affords its citizens the broadest freedoms and the greatest prosperity in the world. But it also has its share of warts. It is embroiled in a war that many of its citizens consider unjust and even illegal. It continues to ravage the natural environment and ignore poverty both at home and abroad, and its culture is increasingly driven by materialism and consumerism. But America, for better or for worse, is still a nation (...) that we have built. So why then, asks Albert Borgmann in this most timely and urgent work, are we failing to take responsibility for it? In Real American Ethics , Borgmann asks us to reevaluate our role in the making of American values. Taking his cue from Winston Churchill—who once observed that we shape our buildings, and then our buildings shape us—Borgmann considers the power of our most enduring institutions and the condition of our present moral makeup to propose inspired new ways in which we, as ordinary citizens, can act to improve our country. This, he shows, includes everything from where we choose to live and what we spend our money on to daunting tasks like the reshaping of our cities—habits and actions that can guide us to more accomplished and virtuous lives. Using prose that is easy and direct throughout, Borgmann’s position is grounded neither by conservative nor liberal ideology, but in his understanding that he is a devoted citizen among many. In an age in which the blame game is the only game in town, this patriotic book is an eloquent reminder of the political strength we all wield when we work together. (shrink)

Holding On to Reality is a brilliant history of information, from its inception in the natural world to its role in the transformation of culture to the current Internet mania and is attendant assets and liabilities. Drawing on the history of ideas, the details of information technology, and the boundaries of the human condition, Borgmann illuminates the relationship between things and signs, between reality and information. "[Borgmann] has offered a stunningly clear definition of information in Holding On to Reality.... He (...) leaves room for little argument, unless one wants to pose the now vogue objection: I guess it depends on what you mean by nothing."—Paul Bennett, Wired "A superb anecdotal analysis of information for a hype-addled age."—New Scientist "This insightful and poetic reflection on the changing nature of information is a wonderful antidote to much of the current hype about the 'information revolution.' Borgmann reminds us that whatever the reality of our time, we need 'a balance of signs and things' in our lives."—Margaret Wertheim, LA Weekly. (shrink)

Ayant à la fois l'autorité d'un texte officiel récent (1992) à visée universelle et une langue qui le rend accessible à un large public, le nouveau Catéchisme, parmi les sujets abordés, traite des femmes tant au niveau des symboliques que des prescriptions et interdits éthiques ou cultuels qui les concernent. Nous essayons ici de prendre la mesure des évolutions et des lieux où elles se situent. On y reconnait brièvement le nouveau statut des femmes dans la société, le bien fondé (...) de certaines exégèses féministes, Eve n'est plus présentée comme responsable de la chute mais contradictoirement Marie est toujours la nouvelle Eve qui permet la rédemption ; c'est toujours à propos des interdits et prescriptions touchant à la famille et à la sexualité que les femmes sont le plus souvent évoquées et ces prescriptions elles-mêmes évoluent peu. Une femme tient autant de place que toutes les autres réunies, Marie, modèle de soumission et figure de l'Église. Cette double représentation empêche de continuer à la proposer comme modèle concret aux femmes actuelles, mais fige une symbolique qui fait référence pour l'exercice du pouvoir dans l'Église. (shrink)

Ayant à la fois l'autorité d'un texte officiel récent (1992) à visée universelle et une langue qui le rend accessible à un large public, le nouveau Catéchisme, parmi les sujets abordés, traite des femmes tant au niveau des symboliques que des prescriptions et interdits éthiques ou cultuels qui les concernent. Nous essayons ici de prendre la mesure des évolutions et des lieux où elles se situent. On y reconnait brièvement le nouveau statut des femmes dans la société, le bien fondé (...) de certaines exégèses féministes, Eve n'est plus présentée comme responsable de la chute mais contradictoirement Marie est toujours la nouvelle Eve qui permet la rédemption ; c'est toujours à propos des interdits et prescriptions touchant à la famille et à la sexualité que les femmes sont le plus souvent évoquées et ces prescriptions elles-mêmes évoluent peu. Une femme tient autant de place que toutes les autres réunies, Marie, modèle de soumission et figure de l'Église. Cette double représentation empêche de continuer à la proposer comme modèle concret aux femmes actuelles, mais fige une symbolique qui fait référence pour l'exercice du pouvoir dans l'Église. (shrink)

How do otherwise considerate human beings do cruel things and still live in peace with themselves? Drawing on his agentic theory, Dr. Bandura provides a definitive exposition of the psychosocial mechanism by which people selectively disengage their moral self-sanctions from their harmful conduct. They do so by sanctifying their harmful behavior as serving worthy causes; they absolve themselves of blame for the harm they cause by displacement and diffusion of responsibility; they minimize or deny the harmful effects of their actions; (...) and they dehumanize those they maltreat and blame them for bringing the suffering on themselves. Dr. Bandura's theory of moral disengagement is uniquely broad in scope. Theories of morality focus almost exclusively at the individual level. He insightfully extends the disengagement of morality to the social-system level through which large-scale inhumanities are perpetrated...Moral disengagement will transform your thinking about how otherwise considerate people can behave inhumanely and still feel good about themselves." -- Book jacket. (shrink)