Imre Lakatos a proposé une modification du critère de Popper, qu'il a qualifié de « falsification sophistiquée (méthodologique) ». De ce point de vue, le critère de délimitation ne devrait pas s'appliquer à une hypothèse ou à une théorie isolée, mais plutôt à l'ensemble d'un programme de recherche. La falsification méthodologique sophistiquée change le problème du mode d’évaluation théorique en problème de l’évaluation des séries théoriques. DOI: 10.13140/RG.2.2.25555.73761.

Une analyse des concepts d'heuristique et de tolérance méthodologique développée par Lakatos, basée sur l'article "Falsification et méthodologie des programmes de recherche scientifique", publié pour la première fois en 1970, puis dans l'ouvrage La méthodologie des programmes de recherche scientifique, volume I. J'ai analysé dans ce texte l'exemplifiant de l'auteur pour le programme de recherche de l'émission de lumière (en physique quantique au début). Un exemple détaillé des concepts est présenté par Lakatos dans la section "Effet de Newton (...) sur les normes scientifiques" du même livre. J'ai également fait souvent référence au livre Preuves et Réfutations, publié par Lakatos en 1976, dans lequel il expose sa vision heuristique par une application directe à l'évolution des mathématiques. J'ai également fait référence à des articles d'autres auteurs pour l'analyse des deux concepts dans la vision de Lakatos. SOMMAIRE: Abstract 1 Vue d'ensemble 1.1 Le falsificationnisme dogmatique (ou naturaliste) 1.2 La falsification méthodologique 1.3 La falsification méthodologique sophistiquée 2. La tolérance méthodologique 3 L'heuristique 3.1 Heuristique négative : le « noyau dur » du programme 3.2 L'heuristique positive : la « ceinture de protection » du programme 3.3 Bohr : un exemple de programme de recherche 3.4 Preuves et Réfutations 4 Conclusions Bibliographie DOI: 10.13140/RG.2.2.30348.46729 . (shrink)

La falsification méthodologique est une marque du conventionnalisme. Il y a une importante délimitation entre les théories de la connaissance « passives » et « actives ». « Les passivistes prétendent que la vraie connaissance est l'empreinte de la nature sur un esprit parfaitement inerte : l'activité mentale ne peut qu'engendrer des biais et des distorsions. » L'école passiviste la plus influente est l'empirisme classique. « Les activistes » affirment que nous ne pouvons pas lire le livre de (...) la nature sans activité mentale, sans l'interpréter à la lumière de nos attentes ou de nos théories. DOI: 10.13140/RG.2.2.29156.73607. (shrink)

Karl Popper rightly contests the possibility of a verification of basic statements. At the same time he strictly believes in the possibility of growth of empirical knowledge. Knowledge growth, however, is only possible if empirical theories can be falsified. This raises the question, how theories can be falsified, if a verification of those statements that falsify theories – i.e. basic statements – is not possible. This problem is often referred to as the “basic problem” or “problem of the empirical basis”. (...) In this paper I show that – from a logical point of view – a falsification of theories is possible without a verification of basic state-ments. Furthermore I show that knowledge growth in the empirical sciences will be possible if two assumptions are valid. These assumptions can neither be proven nor falsified. However, they have to be postulated by everybody in eve-ryday life. (shrink)

A scientific theory, according to Popper, can be legitimately saved from falsification by introducing an auxiliary hypothesis to generate new, falsifiable predictions. Also, if there are suspicions of bias or error, the researchers might introduce an auxiliary falsifiable hypothesis that would allow testing. But this technique can not solve the problem in general, because any auxiliary hypothesis can be challenged in the same way, ad infinitum. To solve this regression, Popper introduces the idea of ​​a basic statement, an empirical (...) statement that can be used both to determine whether a given theory is falsifiable and, if necessary, to corroborate falsification assumptions. DOI: 10.13140/RG.2.2.22162.09923. (shrink)

We information-theoretically reformulate two measures of capacity from statistical learning theory: empirical VC-entropy and empirical Rademacher complexity. We show these capacity measures count the number of hypotheses about a dataset that a learning algorithm falsifies when it finds the classifier in its repertoire minimizing empirical risk. It then follows from that the future performance of predictors on unseen data is controlled in part by how many hypotheses the learner falsifies. As a corollary we show that empirical VC-entropy quantifies the message (...) length of the true hypothesis in the optimal code of a particular probability distribution, the so-called actual repertoire. (shrink)

Selon Popper, une théorie scientifique peut être légitimement sauvée de la falsification en introduisant une hypothèse auxiliaire permettant de générer de nouvelles prédictions falsifiables. De plus, s’il existe des soupçons de biais ou d’erreur, les chercheurs pourraient introduire une hypothèse auxiliaire falsifiable, qui permettrait de procéder à des tests. De nombreux autres auteurs ont proposé des critères pour démarquer la science de la pseudoscience. Celles-ci incluent généralement la croyance en l'autorité, des expériences irremplaçables, des exemples choisis, le manque de (...) volonté de tester, le non-respect des informations de réfutation, un subterfuge intégré, des explications abandonnées sans remplacement. DOI: 10.13140/RG.2.2.36437.99041. (shrink)

Two main cognitive theories predict that people find refuting evidence that falsifies their theorising difficult, if not impossible to consider, even though such reasoning may be pivotal to grounding their everyday thoughts in reality (i.e., Poletiek, 1996; Klayman & Ha, 1987). In the classic 2-4-6 number sequence task devised by psychologists to test such reasoning skills in a simulated environment – people fail the test more often than not. In the 2-4-6 task participants try to discover what rule the number (...) triple 2-4-6 conforms to. The rule is ‘ascending numbers’, but it is tricky to discover this rule. Participants tend to generate hypotheses with the properties of the 2-4-6 triple, for example, ‘even numbers ascending in twos’. They must search for evidence to test whether their hypothesis is the rule. But experimental evidence has shown that they tend to generate confirming triples that they expect to be consistent with their hypothesis rather than inconsistent falsifying triples. Counter to the two main hypothesis testing theories this paper demonstrates that falsification is possible in five 2-4-6 task experiments when participants consider an Imaginary Participant’s hypothesis. Experiment 1 and 2 show that competition with an opponent hypothesis tester facilitates falsification. Experiments 3 to 5 show that the consideration of an alternative hypothesis helps this falsification of hypotheses lead to rule discovery. The implications of the results for theories of hypothesis testing and reasoning are discussed. (shrink)

Tant qu'un programme de recherche en herbe peut être reconstitué de manière rationnelle en tant que problème progressif, il doit être protégé pendant un certain temps d'un rival puissant existant. Ces considérations, dans leur ensemble, soulignent l’importance de la tolérance méthodologique. Même les fameuses « expériences cruciales » n'auront aucune force pour renverser un programme de recherche. Dans le cadre d'un programme de recherche, des « expériences cruciales mineures » entre versions ultérieures sont assez courantes. DOI: 10.13140/RG.2.2.17935.53922.

Malgré les critiques de la théorie de Karl Popper sur la falsifiabilité pour la démarcation entre la science et la non-science, principalement la pseudo-science, ce critère est toujours très utile et parfaitement valide après avoir été perfectionné par Popper et ses disciples. De plus, même dans sa version originale, qualifiée de « dogmatique » par Lakatos, Popper n’a pas affirmé que cette méthode constituait un critère absolu de démarcation : un seul contre-exemple ne suffit pas à falsifier une théorie ; (...) une théorie peut légitimement être sauvée de la falsification en introduisant une hypothèse auxiliaire. Comparé à la théorie des révolutions de Kuhn, de qui lui-même s'est dissocié pour la transformer en une théorie des « micro-révolutions », j'estime que la méthode de démarcation de Popper, ainsi que le développement ultérieur proposé par lui, incluant la corroboration et la vraisemblance, même imparfait, n’est pas seulement valable aujourd’hui, mais c’est la meilleure méthodologie de démarcation. -/- SOMMAIRE: -/- Abstract Introduction 1. Le problème de la démarcation 2. Pseudoscience 3. Falsifiabilité 4 Falsification et réfutation 5 Extension de la falsifiabilité 6. Critiques de la falsifiabilité 7 Support de la falsifiabilité 8 Tendance actuelle Conclusions Bibliographie Notes -/- DOI: 10.13140/RG.2.2.19124.60805 . (shrink)

Can people consistently attempt to falsify, that is, search for refuting evidence, when testing the truth of hypotheses? Experimental evidence indicates that people tend to search for confirming evidence. We report two novel experiments that show that people can consistently falsify when it is the only helpful strategy. Experiment 1 showed that participants readily falsified somebody else’s hypothesis. Their task was to test a hypothesis belonging to an ‘imaginary participant’ and they knew it was a low quality hypothesis. Experiment 2 (...) showed that participants were able to falsify a low quality hypothesis belonging to an imaginary participant more readily than their own low quality hypothesis. The results have important implications for theories of hypothesis testing and human rationality. (shrink)

There are (at least) three approaches to quantifying information. The first, algorithmic information or Kolmogorov complexity, takes events as strings and, given a universal Turing machine, quantifies the information content of a string as the length of the shortest program producing it [1]. The second, Shannon information, takes events as belonging to ensembles and quantifies the information resulting from observing the given event in terms of the number of alternate events that have been ruled out [2]. The third, statistical learning (...) theory, has introduced measures of capacity that control (in part) the expected risk of classifiers [3]. These capacities quantify the expectations regarding future data that learning algorithms embed into classifiers. Solomonoff and Hutter have applied algorithmic information to prove remarkable results on universal induction. Shannon information provides the mathematical foundation for communication and coding theory. However, both approaches have shortcomings. Algorithmic information is not computable, severely limiting its practical usefulness. Shannon information refers to ensembles rather than actual events: it makes no sense to compute the Shannon information of a single string – or rather, there are many answers to this question depending on how a related ensemble is constructed. Although there are asymptotic results linking algorithmic and Shannon information, it is unsatisfying that there is such a large gap – a difference in kind – between the two measures. This note describes a new method of quantifying information, effective information, that links algorithmic information to Shannon information, and also links both to capacities arising in statistical learning theory [4, 5]. After introducing the measure, we show that it provides a non-universal analog of Kolmogorov complexity. We then apply it to derive basic capacities in statistical learning theory: empirical VC-entropy and empirical Rademacher complexity. A nice byproduct of our approach is an interpretation of the explanatory power of a learning algorithm in terms of the number of hypotheses it falsifies [6], counted in two different ways for the two capacities. We also discuss how effective information relates to information gain, Shannon and mutual information. (shrink)

Despite the criticism of Karl Popper's falsifiability theory for the demarcation between science and non-science, mainly pseudo-science, this criterion is still very useful, and perfectly valid after it was perfected by Popper and his followers. Moreover, even in his original version, considered by Lakatos as "dogmatic", Popper did not assert that this methodology is an absolute demarcation criterion: a single counter-example is not enough to falsify a theory; a theory can legitimately be saved from falsification by introducing an auxiliary (...) hypothesis. Compared to Kuhn's theory of revolutions, which he himself later dissociated from it transforming it into a theory of "micro-revolutions," I consider that Popper's demarcation methodology, along with the subsequent development proposed by him, including the corroboration and the verisimilitude, though imperfect, is not only valid today, but it is still the best demarcation methodology. For argumentation, I used the main works of Popper dealing with this issue, and his main critics and supporters. After a brief presentation of Karl Popper, and an introduction to the demarcation problem and the falsification methodology, I review the main criticisms and the arguments of his supporters, emphasizing the idea that Popper has never put the sign of equality between falsification and rejection. Finally, I present my own conclusions on this issue. CONTENTS -/- Abstract Introduction 1 The demarcation problem 2 Pseudoscience 3 Falsifiability 4 Falsification and refutation 5 Extension of falsifiability 6 Criticism of falsifiability 7 Support of falsifiability 8 The current trend Conclusions Bibliography Notes -/- DOI: 10.58679/MM99220. (shrink)

: This paper addresses the need to examine teaching practices from the observation that they are beyond what they should be. This task devolved to scientists of education is to learn about teaching practices in their relationship to student learning in order to build the database useful to teacher educators and reflexivity necessary for any teacher about their own practice. The concepts of competence, pattern and are useful instrument in this endeavor of explanation and understanding of the practices. The proposed (...) theoretical framework is illustrated by a perspective of teaching practices of teachers in schools and colleges. These differ in many aspects and this requires the testing of new hypotheses to explain -/- La présente contribution traite de la nécessité d’étudier les pratiques d’enseignement à partir du constat de ce qu’elles sont au delà de ce qu’elles devraient être. Cette tâche dévolue aux chercheurs en sciences de l’éducation vise à mieux connaître les pratiques d’enseignement dans leurs relations aux apprentissages des élèves afin de constituer la base de données utiles aux formateurs d’enseignants et nécessaire à toute réflexivité des enseignants à propos de leur propre pratique. Les notions de compétence, de schème et d’instrument sont utiles à cette entreprise d’explication et de compréhension des pratiques. La proposition de cadrage théorique est illustrée par une mise en perspective des pratiques d’enseignement de professeurs des écoles et de collèges. Celles-ci se distinguent sur bien des aspects ce qui réclame la mise à l’épreuve de nouvelles hypothèses explicatives. (shrink)

This article argues that there are at least three different versions of methodological nationalism: state-centrism (unjustified supremacy granted to the nation-state), territorialism (understanding space as divided in territories), and groupism (equating society with the nation-state’s society). If these three versions are logically distinct, as it will be shown, the typology can serve as a tool to weight the influence of methodological nationalism in the social sciences. The paper has three sections arguing that 1) the three versions are all present in (...) the literature on methodological nationalism without always being distinguished; 2) the epistemological problems raised by methodological nationalism are sometimes misunderstood as ontological or normative questions about globalization and national borders; 3) the three versions of methodological nationalism can be shown to be logically independent by a few examples. (shrink)

Logical Probability (LP) is strictly distinguished from Statistical Probability (SP). To measure semantic information or confirm hypotheses, we need to use sampling distribution (conditional SP function) to test or confirm fuzzy truth function (conditional LP function). The Semantic Information Measure (SIM) proposed is compatible with Shannon’s information theory and Fisher’s likelihood method. It can ensure that the less the LP of a predicate is and the larger the true value of the proposition is, the more information there is. So the (...) SIM can be used as Popper's information criterion for falsification or test. The SIM also allows us to optimize the true-value of counterexamples or degrees of disbelief in a hypothesis to get the optimized degree of belief, i. e. Degree of Confirmation (DOC). To explain confirmation, this paper 1) provides the calculation method of the DOC of universal hypotheses; 2) discusses how to resolve Raven Paradox with new DOC and its increment; 3) derives the DOC of rapid HIV tests: DOC of “+” =1-(1-specificity)/sensitivity, which is similar to Likelihood Ratio (=sensitivity/(1-specificity)) but has the upper limit 1; 4) discusses negative DOC for excessive affirmations, wrong hypotheses, or lies; and 5) discusses the DOC of general hypotheses with GPS as example. (shrink)

The high frequency that the question “where are you from” gets asked in ordinary conversation, as well as the insistence on getting private information from people one hardly knows, reveal an interesting phenomenon: an exceptional reversing of the codes of politeness, where indiscretion becomes the rule while efforts to avoid it become impolite acts. In order to explain this phenomenon, this article compares the hypothesis of racial micro-aggression defended by the existing literature and supported by the results of the French (...) survey Trajectories and Origins, to the hypothesis of methodological nationalism. The article shows that the second hypothesis provides a better explanation of how the “where are you from” question is actually practiced. The article’s thesis is that the importance of the “where are you from” question in ordinary conversations is a measure of the banalization of methodological nationalism. (shrink)

Each day people are presented with circumstances that may require speculation. Scientists may ponder questions such as why a star is born or how rainbows are made, psychologists may ask social questions such as why people are prejudiced, and military strategists may imagine what the consequences of their actions might be. Speculations may lead to the generation of putative explanations called hypotheses. But it is by checking if hypotheses accurately reflect the encountered facts that lead to sensible behaviour demonstrating a (...) true understanding. If evidence shows a hypothesis to be false, then people should rationally abandon it, especially if there are negative consequences. The aim of this thesis is to examine how effectively people search for evidence in their hypothesis testing to test whether or not their hypotheses are true or false in competitive games. -/- Research findings from six studies of hypothesis testing behaviour in competitive deductive tasks are explored. Chapter by chapter the thesis tests how everyday people, and master chess players, tackle hypothesis testing in mathematical tasks, such as how to solve sequential number sequence puzzles when thinking about an opponent, or how to solve chess problems in a variety of contexts. The implications of the results are discussed in light of aspects of general cognition: such as reasoning, social hypothesis testing and planning. (shrink)

I confront Feyerabend's position and critical rationalism in order to have a foundation or starting point for my (historical) investigation. The main difference of his position towards falsificationism is the belief that different theories cannot be discussed rationally. Feyerabend is convinced that Galilei's observations with the telescope in the historical context of the Copernican revolution supports his criticism. In particular, he argues that the Copernican theory was supported by deficient hypotheses, and falsifications were disposed by ad hoc hypotheses and propaganda. (...) Furthermore, he claims that his philosophy of science reconstructs Galilei's defence of the Copernican theory. He introduces a central principle of his position (the principle of tenacity) in order to justify a research strategy of not eliminating falsified theories. He tries to show that the tenacious defence of a theory corresponds to Galilei's defence of the Copernican theory. Remarkably, Feyerabend's approach to explain the development of science earns an important support from his interpretation of Galilei's observations. On this basis I give a falsificationist interpretation of Galilei's observations with the telescope, and oppose this interpretation to Feyerabend's. From a falsificationist perspective, auxiliary hypotheses compete during the Copernican revolution which can (with some effort) be critically discussed. Then I analyse the historical case in order to test Feyerabend's interpretation of the Copernican revolution. Inter alias I investigate thoroughly whether Galilei, as Feyerabend claims, immunised falsifications of the Copernican theory by the introduction of ad hoc hypotheses. The investigation considers Galilei's explanation of Venus' phases, his establishment of the irradiation hypothesis, the explanation of the telescope's functionality, and the role of the reproducibility of the observations with the telescope. Finally I provide a rational reconstruction of Galilei's falsification of the Ptolemaic theory. The formalisation shows that Galilei was not a cautious critical rationalist, but a very confident scientist using the method of falsification. (shrink)

Confirmation and falsification are different strategies for testing theories and characterizing the outcomes of those tests. Roughly speaking, confirmation is the act of using evidence or reason to verify or certify that a statement is true, definite, or approximately true, whereas falsification is the act of classifying a statement as false in the light of observation reports. After expounding the intellectual history behind confirmation and falsificationism, reaching back to Plato and Aristotle, I survey some of the main controversial (...) issues and arguments that pertain to the choice between these strategies: the Raven Paradox, the Duhem/Quine problem and the Grue Paradox. Finally, I outline an evolutionary criticism of inductive Bayesian approaches based on my assumption of doxastic involuntarism. (shrink)

According to falsificationism, a theory is scientific if it can be incompatible with some empirically testable statements. This epistemological approach has been criticized because, in practice, it is impossible to decide when a particular fact should be considered incompatible with a theory. These criticisms, however, neglect the fact that the Popperian sense of falsification is a “logical sense.” Thus, the Popperian criterion of falsifiability only requires that, assuming certain auxiliary hypotheses, the theory in question be logically incompatible with some (...) empirically testable statements. This paper presents a reassessment of these criticisms, justifying that the criterion of falsifiability is unrenounceable insofar as our best theories should aspire to satisfy it. (shrink)

The late Nietzsche defended a position which he sometimes to refers as ‘sensualism’ and which consists of two main theses: senses ‘do not lie’ (T1) and sense organs are ‘causes’ (T2). Two influential interpretations of this position have been proposed by Clark and Hussain, who also address the question whether Nietzsche's late sensualism is (Hussain) or not (Clark) compatible with the epistemological view which he held in his previous work and which has been dubbed the ‘falsification thesis’ (FT). In (...) my paper I will show that both readings raise substantial difficulties and propose an alternative account of Nietzsche's sensualism. In particular, I will argue: (a) that according to Nietzsche the representational content of sensory experience ‘does not lie’ since it is physically grounded in causal exchanges with the external world which are mediated by sense organs; (b) that Nietzsche believes that the claim that senses ‘do not lie’ is also true of the phenomenal, qualitative content of sensory experience; and (c) that FT, despite its prima facie tension with (a) and (b), fit well Nietzsche's sensualism. (shrink)

Karl Popper (1902-1994) was one of the most influential philosophers of science of the 20th century. He made significant contributions to debates concerning general scientific methodology and theory choice, the demarcation of science from non-science, the nature of probability and quantum mechanics, and the methodology of the social sciences. His work is notable for its wide influence both within the philosophy of science, within science itself, and within a broader social context. Popper’s early work attempts to solve the problem of (...) demarcation and offer a clear criterion that distinguishes scientific theories from metaphysical or mythological claims. Popper’s falsificationist methodology holds that scientific theories are characterized by entailing predictions that future observations might reveal to be false. When theories are falsified by such observations, scientists can respond by revising the theory, or by rejecting the theory in favor of a rival or by maintaining the theory as is and changing an auxiliary hypothesis. In either case, however, this process must aim at the production of new, falsifiable predictions. While Popper recognizes that scientists can and do hold onto theories in the face of failed predictions when there are no predictively superior rivals to turn to. He holds that scientific practice is characterized by its continual effort to test theories against experience and make revisions based on the outcomes of these tests. By contrast, theories that are permanently immunized from falsification by the introduction of untestable ad hoc hypotheses can no longer be classified as scientific. Among other things, Popper argues that his falsificationist proposal allows for a solution of the problem of induction, since inductive reasoning plays no role in his account of theory choice. Along with his general proposals regarding falsification and scientific methodology, Popper is notable for his work on probability and quantum mechanics and on the methodology of the social sciences. Popper defends a propensity theory of probability, according to which probabilities are interpreted as objective, mind-independent properties of experimental setups. Popper then uses this theory to provide a realist interpretation of quantum mechanics, though its applicability goes beyond this specific case. With respect to the social sciences, Popper argued against the historicist attempt to formulate universal laws covering the whole of human history and instead argued in favor of methodological individualism and situational logic. Table of Contents 1. Background 2. Falsification and the Criterion of Demarcation a. Popper on Physics and Psychoanalysis b. Auxiliary and Ad Hoc Hypotheses c. Basic Sentences and the Role of Convention d. Induction, Corroboration, and Verisimilitude 3. Criticisms of Falsificationism 4. Realism, Quantum Mechanics, and Probability 5. Methodology in the Social Sciences 6. Popper’s Legacy 7. References and Further Reading a. Primary Sources b. Secondary Sources -/- . (shrink)

Gilles Deleuze demonstrated the key role of flashback in dealing with the relationship between actual image and recollection-image when interpreting the temporality of images. He established two criteria for judging whether a flashback implies a recollection-image by stating that: (1) it serves as some kind of prompt in the narrative to make the viewer perceive that the scene has entered a flashback; (2) it relies on fate or forking time. But Deleuze also mentioned that, if the context or condition disappears, (...) the recollection-image represented by the flashback will lose its support, at which point, the pure recollection will also disappear. In this case, the actual image no longer forms a connection with the sensor-motor, but is suspended, which produces a fantasmatic effect. Bi Gan extends this suspension in his film “Long Day’s Journey into Night” by removing the character being referred to in the flashback, stripping it from figure and confining it in the voice-over. The film features an extreme use of several effects in the sensory-motor situations and the flashbacks, as described in Deleuze’s “Cinema 2: Time-Image,” namely recollection, dream, and falsification. Thus, the boundary between flashback and reality is completely broken. In addition, Bi Gan uses doppelgangers in the second part of the film to reconstruct the ambiguity of actual images and recollection-images in the first part, turning them into pure fantasies. This essay will analyze issues relating to the images and characters in “Long Day’s Journey into Night” and show how this film constitutes a typical case of recollection-images transformed into fantasies through the power of falsification. (shrink)

After long arguments between positivism and falsificationism, the verification of universal hypotheses was replaced with the confirmation of uncertain major premises. Unfortunately, Hemple proposed the Raven Paradox. Then, Carnap used the increment of logical probability as the confirmation measure. So far, many confirmation measures have been proposed. Measure F proposed by Kemeny and Oppenheim among them possesses symmetries and asymmetries proposed by Elles and Fitelson, monotonicity proposed by Greco et al., and normalizing property suggested by many researchers. Based on the (...) semantic information theory, a measure b* similar to F is derived from the medical test. Like the likelihood ratio, measures b* and F can only indicate the quality of channels or the testing means instead of the quality of probability predictions. Furthermore, it is still not easy to use b*, F, or another measure to clarify the Raven Paradox. For this reason, measure c* similar to the correct rate is derived. Measure c* supports the Nicod Criterion and undermines the Equivalence Condition, and hence, can be used to eliminate the Raven Paradox. An example indicates that measures F and b* are helpful for diagnosing the infection of Novel Coronavirus, whereas most popular confirmation measures are not. Another example reveals that all popular confirmation measures cannot be used to explain that a black raven can confirm “Ravens are black” more strongly than a piece of chalk. Measures F, b*, and c* indicate that the existence of fewer counterexamples is more important than more positive examples’ existence, and hence, are compatible with Popper’s falsification thought. (shrink)

Allegations of fraud involving falsification as research misconduct may result in severe consequences for those convicted. The focus of this article is the Public Health Service’s (PHS) definition of falsification . A well-articulated revised definition is required for veritable instances of falsification as misconduct to be consistently identified and potentially offer a framework for elucidation. A philosophical critique of the explicit definition is undertaken to determine what comprises falsification at its core, which could substantially reduce the (...) number of allegations of fraud as suspected instances of misconduct. The flaw in the PHS definition of falsification is due to circular logic, which allows anything to be proven according to it. Furthermore, to be confident that falsification has occurred, one must be certain of what is true when it has not occurred, which is demonstrated not to be plausible. falsification was found to be the most common type of fraud as misconduct alleged yet the rarest to be determined to occur because the flawed definition confounds what constitutes an occurrence of it. In addition to conceptual ambiguity and ignorance, allegations of falsification are suggested to occur strategically as maneuvers by researchers who may exploit the inherent flaw in the definition to eliminate rival competitors. -/- The purpose of part two is to critique the definition of falsification as research misconduct according to the Public Health Service (PHS) in order to better understand what it entails. In support of this purpose, the approach decided upon for analysis was philosophical including framing the issue borrowing from both mereological and epistemological perspectives. Through the consideration given to parthood relations of mereology, we gained insight from a cognitive imperfection standpoint about similarities that exist between the epistemic constraints on knowledge and the nature of violations concerning research misconduct. Findings from the examination of a case study include the significance of accuracy in representation in falsification as misconduct and the core dimensions comprising an instance of falsification, which are Deliberateness, Alteration, and Inclusion. Given that either behavior or actions must occur that violate these three aspects in order to qualify as an instance of misconduct under falsification, the author proposes that, at a minimum, any revisions made to the definition of falsification stipulate what he refers to as the Violation Imperative. (shrink)

Chapitre méthodologique d'un livre co-écrit par Éliane Pons et J.-J. Pinto. Ce dernier, pour raisons professionnelles, n'avait indiqué son nom que dans cette partie intitulée "Esquisse d'une psychanalyse scientifique" (allusion respectueuse au titre de Freud "Esquisse d'une psychologie scientifique"), où se trouve expliquée en détail la méthode originale d'analyse de discours inventée et enseignée par lui : l'Analyse des Logiques Subjectives© (A.L.S.©).

Cosmological models that invoke a multiverse - a collection of unobservable regions of space where conditions are very different from the region around us - are controversial, on the grounds that unobservable phenomena shouldn't play a crucial role in legitimate scientific theories. I argue that the way we evaluate multiverse models is precisely the same as the way we evaluate any other models, on the basis of abduction, Bayesian inference, and empirical success. There is no scientifically respectable way to do (...) cosmology without taking into account different possibilities for what the universe might be like outside our horizon. Multiverse theories are utterly conventionally scientific, even if evaluating them can be difficult in practice. (shrink)

According to Karl Popper, science cannot verify its theories empirically, but it can falsify them, and that suffices to account for scientific progress. For Popper, a law or theory remains a pure conjecture, probability equal to zero, however massively corroborated empirically it may be. But it does just seem to be the case that science does verify empirically laws and theories. We trust our lives to such verifications when we fly in aeroplanes, cross bridges and take modern medicines. We can (...) do some justice to this apparent capacity of science to verify if we make a number of improvements to Popper’s philosophy of science. The key step is to recognize that physics, in accepting unified theories only, thereby makes a big metaphysical assumption about the nature of the universe. The outcome is a conception of scientific method which facilitates the criticism and improvement of metaphysical assumptions of physics. This view provides, not verification, but a perfect simulacrum of verification indistinguishable from the real thing. (shrink)

The etiological account of teleological function is beset by several difficulties, which I propose to solve by grafting onto the etiological theory a subordinated goal-contribution clause. This approach enables us to ascribe neither too many teleofunctions nor too few; to give a unitary, one-clause analysis that works just as well for teleological functions derived from Darwinian evolution, as for those derived from human intention; and finally, to save the etiological theory from falsification, by explaining how, in spite of appearances, (...) the theory can allow for evolutionary function loss. (shrink)

According to informal logic, the possibilities of deductive logic as a tool for analysing and evaluating ordinary arguments are very limited. While I agree with this claim in general, I question it in the case of the argument from cause to effect. In this paper I first show, on the basis of carefully chosen examples, that we usually react differently to falsification of the conclusion of the argument from cause to effect than we do to the falsification of (...) the conclusion of other defeasible arguments. I then identify general conditions and assumptions under which the causal argument from cause to effect can be reconstructed as deductive. Finally, I compare the causal argument with the expert argument, which is a typical example of a defeasible argument in the narrower sense. (shrink)

En prenant l'article "Certitude" pour point focal, on veut donner à voir comment Diderot a su rassembler toute la puissance critique de l’Encyclopédie pour bousculer les certitudes de ses contemporains. Une lecture attentive de l’article permettra de voir comment Diderot se livre une composition singulière faite de pièces empruntées à des autorités. On verra ensuite que Diderot fissure lui-même ce collage en le mettant en dialogue avec des éléments externes selon une méthode sophistiquée de renvois à d’autres articles de (...) l’Encyclopédie ou à d’autres textes de collaborateurs du dictionnaire. (shrink)

Aujourd’hui délaissées, parfois devenues gênantes, les collections médicales furent pourtant à l’avant-garde du renouveau de la médecine au début du XIXe siècle, avant que celle-ci ne devienne la médecine telle que nous la connaissons aujourd’hui. Selon une vision courante de l’histoire de la médecine, les collections médicales auraient perdu de leur utilité lorsque la médecine a accédé au statut de science expérimentale, les musées d’anatomie faisant alors place aux laboratoires. Les collections d’anatomie-pathologie comme le musée Dupuytren ne seraient que le (...) reliquat de cette histoire, le témoignage d’un échec méthodologique à opposer aux succès de la physiologie expérimentale. Cette narration de l’histoire de la médecine est-elle cependant correcte ? Dans quels buts épistémologiques les médecins ont-ils créé ces collections ? Quelles connaissances cherchaient-ils à obtenir par ce biais ? Plus généralement, pourquoi collecter en médecine – et en science – et pourquoi collectionner ? Pour répondre à ces questions, je m’intéressai principalement dans cette contribution aux pratiques de collecte et de collection chez les médecins de la Société Anatomique de Paris au XIXe siècle et au rôle joué par ces pratiques dans la construction de la collection Dupuytren. (shrink)

Jusqu’à présent, les discussions au sein de la communauté universitaire et dans la littérature scientifique sur la conduite responsable en recherche (CRR), incluant l’intégrité scientifique et l’éthique de la recherche, ont principalement été menées par les chercheurs en sciences de la santé et en sciences fondamentales. Préoccupés, à juste titre, par des problèmes d’inconduite, leurs effets négatifs sur la rigueur scientifique et la confiance du public dans l’entreprise de la recherche, ces débats ont conduit à l’élaboration et à la mise (...) en œuvre de lignes directrices nationales et de politiques institutionnelles. Ces lignes directrices visent entre autres à promouvoir la CRR, notamment dans le but de prévenir ces inconduites. Cependant, pour garantir la pertinence et une application appropriée de ces normes à tous les domaines universitaires, il est nécessaire que les sciences humaines et sociales (SHS) contribuent plus directement à ces discussions. Un tel engagement devrait permettre d’exprimer les particularités disciplinaires et méthodologiques des SHS, dont certaines peuvent être très différentes des sciences appliquées et fondamentales. Cela permettrait également de s’assurer que la littérature sur la CRR ainsi que les politiques et les directives qui en découlent soient à la fois fondées sur des principes universellement généralisables, mais aussi appliquées avec nuance afin de refléter la diversité des pratiques disciplinaires. Dans ce chapitre, nous explorons trois grands domaines dans lesquels les SHS pourraient contribuer à façonner les discussions dans la littérature sur la CRR, tout en informant les chercheurs en SHS des meilleures pratiques en matière de CRR : l’autorat/paternité, la collaboration et l’autorégulation. (shrink)

This article raises two questions about Robert Myers and Claudine Verheggen's terrific book, Donald Davidson's Triangulation Argument: A Philosophical Inquiry. The first question, concerning the first part of the book, is whether, starting from the assumption that a solitary individual cannot have thought contents, we can show that adding another individual to the picture cannot resolve the problem. The second question, concerning the second part, is whether a more sophisticated, decision-theoretic, Humean about the pro-attitudes can respond to the objections to (...) the simple Humean view, and whether Davidson was not in fact just such a sophisticated decision-theoretic Humean. RÉSUMÉ: Cet article pose deux questions sur le formidable livre de Robert Myers et Claudine Verheggen, Donald Davidson's Triangulation Argument: A Philosophical Inquiry. La première question, qui concerne la première partie du livre, consiste à déterminer si, étant donné la supposition qu'un individu solitaire ne peut pas avoir de contenus mentaux, nous pouvons démontrer qu'ajouter un autre individu ne permet pas de résoudre le problème. La seconde question, qui concerne la deuxième partie du livre, est de savoir si un tenant d'une conception humienne des pro-attitudes plus sophistiquée, adhérant à la théorie de la décision, peut répondre aux objections formulées contre la simple conception humienne, et si Davidson n’était pas en fait un tenant de ce second type de conception humienne. (shrink)

Augustin est bien connu comme défenseur d’une « théorie privative » du mal. On peut lire, par exemple, dans les Confessions que « le mal n’est que la privation du bien, à la limite du pur néant ». Le problème, cependant, avec les théories privatives du mal est qu’elles ne nous offrent pas, généralement, une explication robuste ni de l’activité du mal, ni de son pouvoir à causer des effets bien réels ; effets desquels l’expérience demande, malgré tout, une explication (...) rationnelle. Or, selon Augustin, la privation seule ne permet pas de rendre compte de toutes les manifestations du mal. L’explication privative du mal est, certes, la plus étudiée par la littérature ; mais elle ne constitue qu’une partie du tableau. Cet article veut souligner quatre moments de l’explication du mal qu’Augustin propose : le mal comme privation ; le mal comme parasite par rapport à l’être ; le mal comme perversion de la volonté ; et finalement, le mal comme conflit d’intérêts. Chacun de ces moments éclaire un type de mal, mais aucun ne permet à lui seul de rendre compte du problème. Pris ensemble, cependant, et gardant leurs différences respectives à l’esprit, la réponse d’Augustin à la question du mal se révèle beaucoup plus sophistiquée et exhaustive qu’on ne voudrait souvent l’admettre lorsqu’on se limite uniquement à la théorie de la privation. | : Augustine is well-known for advocating a ‘privation theory’ of evil. In Confessions, he writes that “evil has no existence except as a privation of good, down to that level which is altogether without being.” The problem with privation theories of evil generally is that they do not provide a robust enough account of the activity and power of evil to cause the very real effects for which experience demands a rational explanation. For Augustine, however, privation alone does not fully account for evil in all of its manifestations. The privation account of evil receives much scholarly treatment, but it is only part of the complete Augustinian picture. This paper outlines four accounts of evil in Augustine : evil as privation, as parasitic on being, as perversion of the will, and as conflict of interest. Each deals with a kind of evil, but none alone provides a complete account. Taken together, however, with their differences in mind, Augustine’s explanation of evil is shown to be much more sophisticated and comprehensive than is often recognised when one limits one’s understanding of Augustine’s conception of evil to the privation theory alone. (shrink)

Frustration has been growing with mainstay epistemological methods of logical deduction and experimental falsification for assessing theories of consciousness. This paper explores one among several alternatives being proposed: the listed requirements epistemology. A literature search identifies five papers that explicitly list requirements for assessing consciousness theories. These five lists are analysed as a promising starting point, but as yet insufficiently comprehensive to do the method justice. The longest list has 11 items, but 19 unique items are identified across the (...) five lists and a taxonomic analysis by category further surfaces at least 30 potential candidates. Four limitations of the method are discussed, arguing that it is best treated as one practical tool as part of a broader strategy for rigorously assessing consciousness theories and identifying avenues for future research. The conclusion describes a workplan for a sufficiently complete working taxonomy to support the field’s collective endeavours. (shrink)

This book is based on four backgrounds: (1) the diversity of definitions of philosophy, (2) statements by several thingkers about the death/ending of philosophy, (3) the existence of Hassan Hanafi's writings about the definition, life and death of philosophy, and (4) the limitations of specific studies on philosophy according to Hanafi. On that basis, this book examines philosophy according to Hanafi, by revealing and reviewing his definition of philosophy and his views on when philosophy lives and when philosophy dies. In (...) general, this is metaphilosophical study of Hanafi's philosophy by disclosuring it descriptively and analytically on the one side, and by reviewing it falsificatively, interpretatively and axiologically on the other side. This metaphilosophical study of Hanafi philosophy found several things. First, Hanafi's definition of philosophy is still diverse and needs to be reanalyzed, so it cannot overcome the problem of the diversity of definitions of philosophy. Second, Hanafi's statement about those who kill philosophy and turn on it is inconsistent and falsifiable. Third, philosophy can still live in conditions that are considered to kill it. Fourth, although it has several weaknesses, Hanafi's philosophy is useful in particular for Muslims and researchers about Islam, Arab nations and researchers about Arab, and societies that face internal and external traditions; and also worthwhile in general for philosophy and practitioners of philosophy. Fifth, Hanafi's philosophy can overcome the problem of ongoing discourse about the death/ending of philosophy, because his philosophy can actually bring philosophy to life. (shrink)

L. Gazziero, « “Οἰκείως τῇ λογικῇ πραγματείᾳ” (Simplicii in Aristotelis categorias commentarium, 12.11). Contraintes disciplinaires – anciennes et modernes – de l’interprétation logique des Catégories d’Aristote », dans V. Brière et J. Lemaire (éd.), Qu’est-ce qu’une catégorie ? Interprétations d’Aristote, Leuven, Peeters, 2019, p. 9-59 [ISBN 9789042936621] -/- In addition to understanding the very notion of « category » according to its different Aristotelian contexts, the first order of business of an archaeology of Aristotle’s categories is to inquire into its (...) influential evolution at the hands of Late Ancient commentators. The essay retraces the origin and development of the « logical » interpretation which held sway both in ancient and modern times. It shows first that the key to understand the debate between Benveniste and Derrida over Aristotle’s categories is to be found in the Neoplatonic exegesis of the work of the same name. It shows next the powerful dynamic that led the commentators to dismiss more than a few hints in the text itself in order to build a remarkably consistent interpretation that understood the notion of category as the simplest and most fundamental element in a building block theory of linguistic expression and argumentation. -/- Face au foisonnement qui caractérise l’instruction contemporaine du dossier des « catégories » d’Aristote, il est encore et toujours utile de suivre le fil historique inauguré par Adolf Trendelenburg, réinventé par Emile Benveniste et élevé par Jacques Derrida au rang d’impératif méthodologique. Le geste inaugural d’une archéologie de la notion de « catégorie » consiste donc à se prémunir contre le risque d’évacuer le problème historique des catégories à la faveur d’une catégorialité anachronique ou passe-partout : ce qui n’est possible qu’à condition de replacer les « catégories » dans les différents contextes aristotéliciens où elles sont utilisées et d’interroger les contraintes disciplinaires qui ont structuré le débat autour de leur nature chez les commentateurs de l’Antiquité tardive. (shrink)

In this paper I formalise the falsificationist proposal omitting Popper’s requirement of consistency. This omission results in (i) trivial theories being falsifiable in an inappropriate sense of the term, but also in (ii) some inconsistent non-trivial theories being so in an appropriate one. This justifies a slight alteration of the definition of falsifiability that excludes (i) but allows (ii). Instead of requiring that a falsifiable theory be consistent, my proposal only requires that the intersection of its classes of potential corroborators (...) and falsifiers be empty. (shrink)

Falsification may demarcate science from non-science as the rational way to test the truth of hypotheses. But experimental evidence from studies of reasoning shows that people often find falsification difficult. We suggest that domain expertise may facilitate falsification. We consider new experimental data about chess experts’ hypothesis testing. The results show that chess masters were readily able to falsify their plans. They generated move sequences that falsified their plans more readily than novice players, who tended to confirm (...) their plans. The finding that experts in a domain are more likely to falsify their hypotheses has important implications for the debate about human rationality. (shrink)

The paper demonstrates that falsifiability is fundamental to learning. We prove the following theorem for statistical learning and sequential prediction: If a theory is falsifiable then it is learnable -- i.e. admits a strategy that predicts optimally. An analogous result is shown for universal induction.

Abstract: Nietzsche’s famously wrote that “consciousness is a surface” (EH, Why I am so clever, 9: 97). The aim of this paper is to make sense of this quite puzzling contention—Superficiality, for short. In doing this, I shall focus on two further claims—both to be found in Gay Science 354—which I take to substantiate Nietzsche’s endorsement of Superficiality. The first claim is that consciousness is superfluous—which I call the “superfluousness claim” (SC). The second claim is that consciousness is the source (...) of some deep falsification—which I call the “falsification claim” (FC). I shall start by considering Nietzsche’s notion of consciousness. Here, I shall argue that the kind of consciousness he is concerned with is in fact self-consciousness and that he put forward a higher-order theory of it. Then, I shall address the two claims. Regarding (FC), my proposal will be that, according to Nietzsche, the content of (self-)conscious mental states is falsified in virtue of its being articulated propositionally. Regarding (SC), I shall claim that it is best read as a weak version of epiphenomenalism about conscious causation. In addressing both points, I shall discuss in particular the influential reading of Nietzsche’s theory of consciousness offered by Katsafanas (2005). (shrink)

Generic stereotypes are generically formulated generalizations that express a stereotype, like “Mexican immigrants are rapists” and “Muslims are terrorists.” Stereotypes like these are offensive and should not be asserted by anyone. Yet when someone does assert a sentence like this in a conversation, it is surprisingly difficult to successfully rebut it. The meaning of generic sentences is such that they can be true in several different ways. As a result, a speaker who is challenged after asserting a generic stereotype can (...) often simply dismiss the objection and maintain that the stereotype is true in a way that is compatible with the challenger’s objection. In this paper, a semantic theory for generics is presented that accounts for this type of defensive shifting in upholding generic stereotypes. This theory is then used to develop two strategies to object more efficiently. The first strategy is to immediately deny that either of the two possible ways in which a generic can be true obtains. The second strategy is to deny the satisfaction of an additional condition that is necessary for a generic sentence to be true. (shrink)

I argue that some important elements of the current cosmological model are 'conventionalist’ in the sense defined by Karl Popper. These elements include dark matter and dark energy; both are auxiliary hypotheses that were invoked in response to observations that falsified the standard model as it existed at the time.

I suggest that the recent, highly visible, and often heated debate over failures to replicate the results in the social sciences reveals more than the need for greater attention to the pragmatics and value of empirical falsification. It also is a symptom of a serious issue -- the underdeveloped state of theory in many areas of psychology. While I focus on the phenomenon of “social priming” -- since it figures centrally in current debate -- it is not the only (...) area of psychological inquiry to which my critique applies. I first discuss some of the key issues in the “social priming” debate and then attempt to show that many of the problems thus far identified are traceable to a lack of specificity of theory. Finally, I hint at the possibility that adherence to the materialist tenets of modern psychological theory may have a limiting effect on our full appreciation of the phenomena under scrutiny. (shrink)

Nietzsche’s favourable comments about science and the senses have recently been taken as evidence of naturalism. Others focus on his falsification thesis: our beliefs are falsifying interpretations of reality. Clark argues that Nietzsche eventually rejects this thesis. This article utilizes the multiple ways of being science friendly in Nietzsche’s context by focussing on Mach’s neutral monism. Mach’s positivism is a natural development of neo-Kantian positions Nietzsche was reacting to. Section 15 of Beyond Good and Evil is crucial to Clark’s (...) interpretation. The presented interpretation makes better sense of this passage and shows that Nietzsche can accept both falsification and empiricism. (shrink)

In this paper I will show the problems that are encountered when dealing with uniqueness of connectives in a bilateralist setting within the larger framework of proof-theoretic semantics and suggest a solution. Therefore, the logic 2Int is suitable, for which I introduce a sequent calculus system, displaying - just like the corresponding natural deduction system - a consequence relation for provability as well as one dual to provability. I will propose a modified characterization of uniqueness incorporating such a duality of (...) consequence relations, with which we can maintain uniqueness in a bilateralist setting. (shrink)

This monograph contributes to the scientific misconduct debate from an oblique perspective, by analysing seven novels devoted to this issue, namely: Arrowsmith by Sinclair Lewis (1925), The affair by C.P. Snow (1960), Cantor’s Dilemma by Carl Djerassi (1989), Perlmann’s Silence by Pascal Mercier (1995), Intuition by Allegra Goodman (2006), Solar by Ian McEwan (2010) and Derailment by Diederik Stapel (2012). Scientific misconduct, i.e. fabrication, falsification, plagiarism, but also other questionable research practices, have become a focus of concern for academic (...) communities worldwide, but also for managers, funders and publishers of research. The aforementioned novels offer intriguing windows into integrity challenges emerging in contemporary research practices. They are analysed from a continental philosophical perspective, providing a stage where various voices, positions and modes of discourse are mutually exposed to one another, so that they critically address and question one another. They force us to start from the admission that we do not really know what misconduct is. Subsequently, by providing case histories of misconduct, they address integrity challenges not only in terms of individual deviance but also in terms of systemic crisis, due to current transformations in the ways in which knowledge is produced. Rather than functioning as moral vignettes, the author argues that misconduct novels challenge us to reconsider some of the basic conceptual building blocks of integrity discourse. (shrink)

For forty years I have argued that we urgently need to bring about a revolution in academia so that the basic task becomes to seek and promote wisdom. How did I come to argue for such a preposterously gigantic intellectual revolution? It goes back to my childhood. From an early age, I desired passionately to understand the physical universe. Then, around adolescence, my passion became to understand the heart and soul of people via the novel. But I never discovered how (...) to tell stories in order to tell the truth. So, having failed to become a physicist, and failed to become a novelist, I studied philosophy at Manchester University and then, in six weeks of inspiration, discovered that the riddle of the universe is the riddle of our desires. Philosophy should be about how to live, and should not just do conceptual analysis. I struggled to reconcile the two worlds of my childhood ambitions, the physical universe and the human world. I decided they could be reconciled with one another if one regarded the two accounts of them, physics and common sense, as myths, and not as literal truths. But then I discovered Karl Popper: truth is too important to be discarded. I revised my ideas: physics seeks to depict truly only an aspect of all that there is; in addition, there is the aspect of the experiential features of the world as we experience it. I was immensely impressed with Popper’s view that science makes progress, not by verification, but by ferocious attempted falsification of theories. I was impressed, too, with his generalization of this view to form critical rationalism. Then it dawned on me: Popper’s view of science is untenable because it misrepresents the basic aim of science. This is not truth as such; rather it is explanatory truth – truth presupposed to be unified or physically comprehensible. We need, I realized, a new conception of science, called by me aim-oriented empiricism, which acknowledges the real, problematic aims of science, and seeks to improve them. Then, treading along a path parallel to Popper’s, I realized that aim-oriented empiricism can be generalized to form a new conception of rationality, aim-oriented rationality, with implications for all that we do. This led on to a new conception of academic inquiry. From the Enlightenment we have inherited the view that academia, in order to help promote human welfare, must first acquire knowledge. But this is profoundly and damagingly irrational. If academia really does seek to help promote human welfare, then its primary tasks must be to articulate problems of living, and propose and critically assess possible solutions – possible actions, policies, political programmes, philosophies of life. The pursuit of knowledge is secondary. Academia needs to promote cooperatively rational problem solving in the social world, and needs to help humanity improve individual and institutional aims by exploiting aim-oriented rationality, arrived at by generalizing the real progress-achieving methods of science. We might, as a result, get into life some of the progressive success that is such a marked feature of science. Thus began my campaign to promote awareness of the urgent need for a new kind of academic inquiry rationally devoted to helping humanity create a wiser world. (shrink)