Historians of philosophy have hitherto either given scant attention to Cournot and Renouvier’s views on scientific revolution, tried to read Kuhn’s concept of scientific revolution back into their works, or did not fully appreciate the extent to which these philosophers were reflecting on the works of their predecessors as well as on developments in mathematics and the sciences. Cournot’s views on cumulative development through revolution resemble Comte’s more than Kuhn’s, and his notion of progressive theoretical simplicity through revolution recalls Whewell’s (...) philosophy of science. Renouvier, far from regarding a scientific revolution as resulting in a new set of conceptual boxes imposing a conformity of thought on the scientific community, recognized that a new theory proposed during a revolution is open to more than one interpretation. (shrink)

According to Antoine Augustine Cournot, chance events are the result of the intersection between independent causal chains. This coincidental notion of chance is not a new one, but—as Cournot remarks—it comes from Saint Thomas Aquinas, Boethius, and more probably from Jean de La Placette. Such a conception of chance phenomena seems to be very important, not only because it is closely related to the Principle of Causality, but also since it grounds Cournot’s theory of objective probability. Starting from Martin’s work, (...) the main attempt of this survey is to endorse the idea that Cournot’s coincidental notion of hasard is objective, that is it is ontic and it does not depend—in some sense—on our degree of knowledge. In order to do that, a central role in the discussion will be given to the meaning of the independence between the intersecting causal chains and to Cournot’s conception of causation. (shrink)

Dans un article décisif sur la naissance du calcul des probabilités (1970), Ernest Coumet rappelait la formule de Cournot selon laquelle le retard qui marque la naissance de la théorie du hasard est «un pur effet du hasard». On se propose ici de soumettre ce jugement à l'examen critique non de l'histoire, mais de la pensée même de Cournot; sa philosophie de l'histoire et sa représentation de l'histoire des sciences au XVIIe siècle semblant, tout d'abord, dénoncer par avance un jugement (...) aussi péremptoire. Pour rendre compte de ce qui peut alors apparaître de sa part comme une inconséquence, voire un aveuglement, on forme l'hypothèse que cette affirmation constitue un artefact de sa conception internaliste de l'histoire des sciences et des révolutions scientifiques. En ce sens, larticle constitue une illustration de la nécessité théorique, mais aussi des difficultés de l'histoire des mathématiques. (shrink)

Pierre Duhem can be looked upon as one of the heirs of a tradition of historical and philosophical researches that flourished in the second half of the nineteenth century. This tradition opposed the naïve historiography and epistemology of the positivist school. Beside the positivists of different leanings such as Littré, Laffitte, Wyrouboff, and Berthelot, we find Cournot, Naville, and Tannery, who developed sophisticated histories and philosophies of science focusing on the real scientific practice and its history. They unfolded elements of (...) continuity and discontinuity in the history of science, and enlightened the complex relationship among experimental, mathematical, logical and philosophical components in scientific practice. In Pierre Duhem we find a systematic and vivid interpretation of these meta-theoretical issues, and a meaningful development of a cultural tradition that re-emerged in the second half of the twentieth century. (shrink)