We examine some of Connes’ criticisms of Robinson’s infinitesimals starting in 1995. Connes sought to exploit the Solovay model S as ammunition against non-standard analysis, but the model tends to boomerang, undercutting Connes’ own earlier work in functional analysis. Connes described the hyperreals as both a “virtual theory” and a “chimera”, yet acknowledged that his argument relies on the transfer principle. We analyze Connes’ “dart-throwing” thought experiment, but reach an opposite conclusion. In S , all definable sets of reals are (...) Lebesgue measurable, suggesting that Connes views a theory as being “virtual” if it is not definable in a suitable model of ZFC. If so, Connes’ claim that a theory of the hyperreals is “virtual” is refuted by the existence of a definable model of the hyperreal field due to Kanovei and Shelah. Free ultrafilters aren’t definable, yet Connes exploited such ultrafilters both in his own earlier work on the classification of factors in the 1970s and 80s, and in Noncommutative Geometry, raising the question whether the latter may not be vulnerable to Connes’ criticism of virtuality. We analyze the philosophical underpinnings of Connes’ argument based on Gödel’s incompleteness theorem, and detect an apparent circularity in Connes’ logic. We document the reliance on non-constructive foundational material, and specifically on the Dixmier trace −∫ (featured on the front cover of Connes’ magnum opus) and the Hahn–Banach theorem, in Connes’ own framework. We also note an inaccuracy in Machover’s critique of infinitesimal-based pedagogy. (shrink)

In the current philosophical literature, determinism is rarely defined explicitly. This paper attempts to show that there are in fact many forms of determinism, most of which are familiar, and that these can be differentiated according to their particular components. Recognizing the composite character of determinism is thus central to demarcating its various forms.

The Russian academic theological tradition, scarcely known to the West, was the only milieu wherein the development of philosophy of religion in the pre-revolutionary Russia was under way. Philosophical investigation of the phenomenon of religion was being elaborated in the apologetic context, i.e. in critical analysis of non-theistic conceptions of the origin and essence of religion, and the figure of Friedrich Schleiermacher, with his reduction of religion firstly to cosmic feelings and later to the feeling of the ontological dependence, occupied (...) an invariable place in this analysis. The paper deals with critical comments on Schleiermacher’s Speeches on Religion and Christian Faith made by Victor Kudryavtsev-Platonov and his followers, which are being parsed in turn, as well as with historical links of the later Schleiermacher with phenomenology of religion and typological affinities of the earlier Schleiermacher with the theology of religious pluralism. (shrink)

The short exposition of the triplet model of concepts and some definitions connected with it are given. In this model any concept may be depicted as having three characteristics: a base, a representing part and the linkage between them. The paper introduces the fuzzification of concepts in terms of the triplet model.

Felix Klein and Abraham Fraenkel each formulated a criterion for a theory of infinitesimals to be successful, in terms of the feasibility of implementation of the Mean Value Theorem. We explore the evolution of the idea over the past century, and the role of Abraham Robinson's framework therein.

The Lazy Argument, as it is preserved in historical testimonies, is not logically conclusive. In this form, it appears to have been proposed in favor of part-time fatalism (including past time fatalism). The argument assumes that free will assumption is unacceptable from the standpoint of the logical fatalist but plausible for some of the nonuniversal or part-time fatalists. There are indications that the layout of argument is not genuine, but taken over from a Megarian source and later transformed. The genuine (...) form of the argument seems to be given in different form and far closer to Megarian logical fatalism and its purpose is not to defend laziness. If the historical argument has to lead to a logically satisfactory solution, some additional assumptions and additional tuning is needed. (shrink)

The article discusses some aspects of the narrative explanation, and its nature and role in explaining the historical entities. The author defends possibility of formulating status of narrative explanation as scientific and adequate for all historical sciences, here defined as sciences concerned with the spatio-temporally restricted entities. lie suggests that uniqueness and particularity of historical objects are not in contradiction with the claims based on the classical model of explanation in the way of logical inferring. Results of discussion are that (...) undeveloped explanations, like explanation sketches, could be adopt, not just in accordance with pragmatic reasons, but also as the step toward full-fledged or complete explanation trough mediation of developing the scientific research programs on which they are based. (shrink)

The paper deals with the possible readings of The Reaper Argument premisses. Some conjectures related to the Stoics’ alleged proof of the argument are discussed.

This paper argues that, in its pre-Biblical version (pre-J), the Cain and Abel story principally dealt with tensions distinctive for dry-farming families identifying the social structure as their main cause. The social structure was problematic because it involved two important imbalances, one between the spouses and one between the children. Pre-J offers a novel solution to problems caused by these interfamilial imbalances: rather than accepting their pre-established social roles, people should develop a merit-based social structure. This is why Yahweh says (...) that acceptance and honour are in doing what is right. Focusing on a pre-J narrative in this way and situating the story within the broader motive of sibling rivalry, solve three puzzles: Yahweh’s preference (God challenges unjust social institutions), Cain’s reactions (he is angry because his expectations were unmet and depressed because he thought that this was his failure), and Yahweh’s final forgiveness to Cain (the conflict was not due to Cain’s wicked character). (shrink)

Comparative philosophical studies can seek to fit some Eastern patterns of thought into the general philosophical framework, or, on the contrary, to improve understanding of Western ones through the view "from abroad". I try to hit both marks by means of establishing, firstly, the parallels between Indian versions of theodicy and the Hellenic and Christian ones, then by defining to which of five types of Western theodicy the Advaita-Vedanta and Nyaya versions belong and, thirdly, by considering the meaning of the (...) fact that some varieties of Western theodicy, like the explanation of evil by free will and divine dispensation aiming at the improvement of man, have Indian counterparts while others lack them. Some considerations concerning the remainders of primordial monotheisms ("an argument from theodicy") under the thick layers of other religious world-outlooks are also offered to the reader at the end of the article. (shrink)

The paper has three objectives: to expound a set-theoretical triplet model of concepts; to introduce some triplet relations (symbolic, logical, and mathematical formalization; equivalence, intersection, disjointness) between object concepts, and to instantiate them by relations between certain physical object concepts.

It is proposed to analyze fuzzy concepts and relations between them in the frame of triplet concept modeling. Fuzzy concepts are introduced by means of the so-called fuzzification of dichotomous concepts. The cognitive and psychological aspects of concept possession are separated and studied.

Cílem studie je zodpovědět otázku, co znamená v interpretujících humanitních či sociálních vědách zkoumat narativně. Interpretace je pojata jako explikace utváření významu. V návaznosti na toto pojetí je identifikována řada interpretačních dilemat. V tomto kontextu je uveden narativní přístup jako řešení těchto dilemat. Je pojednáno o povaze narativní perspektivy, o vztahu narativity a zkušenosti a o povaze narativních dat. Narativní výzkum je chápán jako rekonstrukce způsobů, jakými je utvářen význam narativními prostředky. Narativní interpretace umožňuje pohybovat se pružně a efektivně: 1) (...) mezi explicitními daty a exemplifikačními schématy, 2) mezi jedincem a kulturou, 3) mezi hermeneutikou podezření a hermeneutikou důvěry, 4) mezi částmi a celkem, 5) mezi obsahem a formou, 6) mezi strukturou a funkcí. (shrink)

Článek reflektuje Hayekovy výklady o povaze pravidel. Ukazuje, že jeho pojetí pravidel je extrémně široké a vazba mezi pravidly a pravidelnostmi je nepřijatelně úzká. Následně je nastíněno alternativní - užší - vymezení pojmu pravidla. Nakonec je podrobeno kritice Hayekovo příliš úzké chápání pojmu normativních pravidel a je navrženo jeho širší vymezení.

It is proposed to analyze the unity of scientific knowledge in terms of its structure-nominative reconstruction. -/- .

There are no universally adopted answers to the natural questions about scientific concepts: What are they? What is their structure? What are their functions? How many kinds of them are there? Do they change? Ironically, most if not all scientific monographs or articles mention concepts, but the scientific studies of scientific concepts are rare in occurrence. It is well known that the necessary stage of any scientific study is constructing the model of objects in question. Many years logical modeling was (...) dominant in the concept studies. Last decades, concepts came to be regarded as the subject of mathematical modeling. However, different authors take different features of concepts as independent variables of their models. Our objective is to characterize informally the spectra of relevant variables for the modeling of scientific concepts. (shrink)

Physical theories are complex and necessary tools for gaining new knowledge about their areas of application. A distinction is made between abstract and practical theories. The last are constantly being improved in the cognitive activity of professional physicists and studied by future physicists. A variant of the philosophy of physics based on a modified structural-nominative reconstruction of practical theories is proposed. Readers should decide whether this option is useful for their understanding of the philosophy of physics, as well as other (...) philosophies of particular sciences. (shrink)

The paper has two objectives: to introduce the fundamentals of a triplet model of a concept, and to show that the main concept models may be structurally treated as its partial cases. The triplet model considers a concept as a mental representation and characterizes it from three interrelated perspectives. The first deals with objects (and their attributes of various orders) subsumed under a concept. The second focuses on representing structures that depict objects and their attributes in some intelligent system. The (...) third concentrates on the ways of establishing correspondences between objects with their attributes and appropriate representing structures. (shrink)

[From an Evolutionary Point of View: The Concept of Evolution in Contemporary Philosophy].

Este livro é o resultado do II Encontro Nacional de Pesquisadores em Filosofia e Psicanálise, realizado em 2006 na Universidade de São Paulo, e reúne vários pesquisadores em torno de três temas - a filosofia após Freud, os problemas ...

We analyzed remarkable stories linked to the famous Anatoly Vlasov equations in plasma physics. Their creation, modification, and application are interesting from a scientific viewpoint. We also show the relations between those equations dealing with electromagnetism and analogous Jeans equations describing, in particular, gravitational instability in astrophysics. The second half of the essay is devoted to the controversies and political struggle in Soviet (before 1991) and Russian (after 1991) physical communities related to Vlasov’s personality, career, and posthumous recognition. The never-ending (...) destructive influence of Russian totalitarianism on science is demonstrated. (shrink)

The scheme for classifications of concepts is introduced. It has founded on the triplet model of concepts. In this model a concept is depicted by means of three kinds of knowledge: a concept base, a concept representing part and the linkage between them. The idea of triplet classifications of concepts is connected with a usage of various specifications of these knowledge kinds as classification criteria.

Philosophy of Science; Ukraine; Polysytemic nature of theories; Practical theories; Subsystems of a theory.

The work tends to point out the deficiency of some opinions claiming simplified presentation of the promise as the act that directly rise obligation for the promisor. Promises, either in the moral or legal sphere, are based on communication and so form an order of dependent steps that indicates their procedural nature. These characteristics may differ to a lesser extent, depending on the legal systems, moral norms of the society and its technical level and its needs. In all these cases, (...) however, the procedural characteristics of promises, especially in conditional promises, as well as the promises in contractual relations, persists. In our analysis we wish to show that the consistent conception of promise has to take into account a step of acceptance. The outcome of this approach relativizes a strong distinction between promise and offer. (shrink)

David Miller v pracích Critical Rationalism a Out of Error se jako jeden z mála Popperových žáků snaží nejen o vysvětlení a obhájení Popperova kritického racionalismu, ale zároveň i o jeho další rozvinutí. Millerovo znovunastolení kritického racionalismu ovšem předpokládá, že k racionálnímu jednání není třeba žádných „dobrých důvodů“, ale jen argumentů. Uvedená stať se zaměřuje právě na tuto otázku existence tzv. „dobrých důvodů“ ve spojení s racionalitou a racionálním rozhodováním a ukazuje, že Millerův požadavek neexistence „dobrých důvodů“ je nejen příliš (...) radikální, ale i nepřijatelný z hlediska Popperova nebo Musgravova pojetí kritického racionalismu. (shrink)

Stať se zabývá diskusemi o epistemologicko-metodologické roli simulací v soudobé vědě. Soustředí se nejprve na aktuálnost těchto diskusí v současné metodologii vědy a následně na její návaznost na určitou myšlenkovou tradici z osmdesátých let 20. století, kdy diskuse kolem modelování vyvolaly řadu otázek zpochybňujících tradiční pojmové distinkce, především mezi experimentem a teorií. Stať se přiklání v rámci těchto diskusí k názorům, které řadí simulace k novým a specifickým nástrojům vědy, jež také vyžadují novou a specifickou metodologii a epistemologické postavení. Pro (...) podporu této názorové pozice jsou uvedeny některé aktuální analýzy konkrétních příkladů simulací a jejich specifického postavení v moderní vědě. (shrink)

Physicalism as a metaphysical or ontological concept has maintained a dominant position since the second half of the last century to the present day. The claim that everything is physically constituted often accompanies microphysical reductionism, which assumes the existence of fundamental laws to which everything is reducible. In this context, a question regarding the status and possible autonomy of the laws of special sciences arises. The article focuses on the basic philosophical discussions between the strong, weak, and non-reductive physicalism that (...) treat the laws of special sciences in different ways, but none of which can be considered sufficiently convincing and successful. The article seeks to prove the existence of a universal mechanism that leads to the emergence of new and complex entities and regulations of their behaviour, thus justifying the autonomous status of special sciences and laws. (shrink)

The triplet model treats a concept as complex structure that expresses three kinds of information. The first is about entities subsumed under a concept,their properties and relations. The second is about means and ways of representing the first information in intelligent systems. The third is about linkage between the first and second ones and methods of its constructing. The application of triplet models to generalization and development of concept models in philosophy, logic, cognitive psychology, cognitive science, linguistics, artificial intelligence has (...) been demonstrated. The componential structure of the triplet model and extended concept classification have been given. Theoretical considerations are combined with historical case-studies of concept history. For scientists and students with an interest in problems of knowledge structure and representation. Abstract and Extended Summary in English. (shrink)

An application of diagrams for separating modes of theory development.

The purpose of this paper is to present and describe a new method for studying pre-speech language. The suggested approach allows correlate epistemology of linguistics to the ideological tradition of other scientific disciplines. Method is based on three linguistic categories – nouns, verbs, and interjections in their motor and expressive qualities – and their relation to the three basic forms of art – graphics (visual art), movement (dance), and sound (music). The study considers this correlation as caused by the nature (...) of the human receptor system. This method explains the nature of art and the phenomenon of aesthetics and allows for the chronological arrangement of important cultural processes; it identifies the fundamental unanimity of the semiotic nature of language and art. (shrink)

The essay presents the main ideas of the philosophical system «OntoTopoLogia», developed and promoted since 1990 at the I-IV, VIII Russian Philosophical Congresses, the XX World Philosophical Congress (Boston, 1998), Conference «Problems of Consciousness in Philosophy and Science» (Institute of Philosophy RAS, 1996), Conference «Philosophy of Physics: Current Problems» (MSU, 2010), seven International contests The Foundational Questions Institute (USA, FQXi Essay 2012-2020), International scientific conference «Modern Ontology» (St. Petersburg , 2013, 2017, 2019, 2023), Third All-Russian Scientific Conference «Philosophy of Mathematics: (...) Current Problems» (MSU, 2013), International Congress «Fundamental Problems of Natural Science» (St. Petersburg, 2013, 2016, 2022), Conference «Foundations of Fundamental Physics and Mathematics» (RUDN University, 2023). The ideas of the «OntoTopoLogia» system are aimed at overcoming the conceptual-paradigmatic crisis in the metaphysical/ontological basis of fundamental science (mathematics, physics, cosmology) on the basis of a holistic paradigm («paradigm of understanding»), a comprehensive conceptual-figurative synthesis, a method of dialectical-ontological construction, MetaCategory, MetaAxiom, SuperPrinciple and Metasymbol, a new holistic understanding of matter, its ontological unification across all levels of existence of the Universe as eternal holistic process of generating more and more new meanings, forms and structures. A model of the Primordial (absolute) generating structure is being built - a single ontological basis of knowledge: ontological frameworc, carcass, foundation as an all-encompassing Ideality, a single basis for the «sciences of nature» and «sciences of the spirit». (shrink)

The article deals with the question of correct reconstruction of and solutions to the ancient paradoxes. Analyzing one contemporary example of a reconstruction of the so-called Crocodile Paradox, taken from Sorensen’s A Brief History of Paradox, the author shows how the original pattern of paradox could have been incorrectly transformed in its meaning by overlooking its adequate historical background. Sorensen’s quoting of Aphthonius, as the author of a certain solution to the paradox, seems to be a systematic failure since the (...) time of Politiano’s erroneous attributing it to Aphthonius. In the conclusion, the author claims that neglecting the historical background of the ancient paradoxes into account, we are neither able to evaluate their modern interpretations as adequate nor their solutions as successful. (shrink)

Determinism is usually understood as a commonly clear and obvious thesis. In the most of the actual literature a character of determinism is rarely enough explicitly underlined and we believe that it is the reason why common uses of the term often leads to inconsistencies and present a source of misunderstandings of different sorts. Here we will try to show that that there are many forms of determinism; that the concept of determinism has a composite character; and that conceptions of (...) determinism can be mutually discriminated and organized according to particular elements they are consisting of by applying the procedure of classification. (shrink)

This article aims to show that it is impossible to put Cicero’s testimonies regarding The Fabius Argument in a consistent inferential order. Either we must suppose that additional premises are tacitly assumed in the text or we must com-pare it with other sources, which leads to inconsistencies in the proof’s reconstruction. Cicero’s reconstruction of the progression of the argument has formal shortcomings, and the paper draws attention to some of these deficiencies. He interpreted sources in a revised and intentionally simplified (...) way, with the aim of undermining the views of his opponents, casting them as inconsistent and similar to views held by Diodorus. Rather than being a consistently interpreted argument faithfully transcribed from the Stoic sources, Cicero’s Fabius Argument is ultimately anti-Stoic. (shrink)

The article deals with some current pioneering formal reconstructions and interpretations of the problem well known in antiquity as The Master Argument. This problem is concerning with enrichment of formal logical systems with modal and temporal notions. The opening topic is devoted to reconstruction of Arthur Prior. while the other here included approach to the problem arc mostly reactions. revisions or additions to this one.

One of the main and currently dominating attempt in theories of philosophical psychology is the way of describing psychological facts as cognitive state of affairs or mental events which could be individuated by the same means as it were natural species. This idea resulted from incapability of the " folk" psychology to give complete and satisfactory scientific explanation by the intentionality approach. The author claims that many certain advantages of the cognitive theories could be disputable if we try to consistently (...) analyze the ways of describing and individuation of entities in such "deeper" theories. And, especially if we can recognize them as spatiotemporally restricted (i .e. historical) entities. This alternative case could be, as it seems, theoretically more appropriate to their subjects: particular thoughts, believes, desires, representations and other mental events would be individuated as genealogically reconstructed subjects which forms potentially stronger explanatory power than in the case of explanations given by covering laws and in accordance with the presupposition of nomological necessity. (shrink)

In the opening lines of this article it is claimed that history is a discipline taking role as part of unique body of science. The concept of scientific rationality is presented as the criterion of demarcation between science and pseudoscience. From this statement as a starting point, it follows that the methodological grounds for scientific predictions are common for all scientific disciplines. Different aspects of scientific predicting are critically examined: thesis of symmetry, determinism and predictability, indeterminism and predictability, reflexivity of (...) predictions, prediction of novelty and progress, predictions in relation to the time of their uttering, the prediction sketch, truthfulness and regularity in implying prediction, and predictability of human actions. In the concluding section, the author admits of the possibility of constructing the theory of history, opposed to eschatological philosophy of history, as a predictive theory with a scientific basis and a theory whose specifications limit its misuse in practice. (shrink)

The article deals with some items of Gödelian time travel problem well-known as an illustration of a specific kind of causality paradox. Its first part presents “the travel into the past” according to several recent physical hypotheses, which, from theoretical standpoint, seem to make such an idea possible. The familiar concept of backward causation is also discussed; we need to accept and develop it, if we wish to escape this type of time-travel paradoxes. The second part of the contribution is (...) devoted to philosophical interpretations of the precedence in order of cause and effect, and of the relation between temporal and causal order. The author claims, that if we wish to save coherent picture of nature, it is necessary to revise the concept of causality to make it compatible with the concept of backward causation. (shrink)

The changes of concepts are described in the frame of concept triplet model. -/- .

The book focuses on some properties of those arguments that appear in discussions on climate change and that occur in the procedures of forming multilateral agreements determining the obligations of the individual actors involved in a multilateral attempt to solve the problem of global warming by eliminate its causes and to neutralize its consequences. Presented arguments appear at two levels - epistemic (or a level of future activity planning) and executive (a level of plan implementation). At the preliminary, basic level, (...) we encounter arguments (occurring in public opinion or originating from the scientific community), the purpose of which is an attempt: to obtain relevant knowledge of the problem; to offer the plan of problem solution; and to change the beliefs of the potential future actors. At the second level we are facing with arguments appearing at the institutional level, the purpose of which is to direct the actors of multilateral agreements toward a certain type of procedures aiming to meet the previously stated targets. Multilateral agreements are preceded by presenting arguments purported for the process of negotiating about the objectives, the methods of achieving goals and the ways of determining future obligations for the participants. We will point out the procedural deficiencies of the specific frameworks in which these activities take place. Even the arguments should be a means of overcoming problem obstacles at the way to achieve collective objectives, shortcomings at institutional level significantly relativizes the effectiveness and purpose of these arguments. These deficiencies result in poor determination of the axis sequences of procedural and institutional elements while their inexplicite and indefinitely articulated properties lead to noneffective prerequisites for achieving the targets necessary to address the problem solution of global warming. (shrink)

Cicero's De fato: On Hellenistic Conditionals and Free Will. The Serbo-Croatian translation of Cicero's De fato, with comments and detailed analysis of some arguments and problems of the text. -/- (s/h): Tekst Ciceronovog spisa "de fato", prevod, komentari i u dodacima, detaljnija analiza pojedinih argumenata i problema sadržanih u tekstu.

Essays on Aristotle's Sea-Battle, Lazy Argument, Argument Reaper, Diodorus' Master Argument -/- The book is devoted to the ancient logical theories, reconstruction of their semantic proprieties and possibilities of their interpretation by modern logical tools. The Ancient arguments are frequently misunderstood in modern interpretations since authors usually have tendency to ignore their historical proprieties and theoretical background what usually leads to a quite inappropriate picture of the argument’s original form and mission. Author’s primary intention was to draw attention to the (...) complexity of some historical arguments and to the theoretical context in which arguments were created, circulated, developed, and finally tuned. Four well-known ancient arguments – with a common central subject related to the future contingencies problem – are reconstructed from available historical sources: “The Sea Battle”, which is drawn from Aristotle’s treatise De Interpretatione; two arguments, usually ascribed to the Stoics, “The Lazy Argument” and “The Reaper”; “The Master Argument” of the Megarian philosopher Diodorus. Arguments are linguistically and semantically detaily analyzed, formally presented by reflecting some relevant corresponding hypotheses based on physical or logical theories of their ancient authors, and finally covered by appropriate logical tools familiar to a modern reader. Two appendices are added at the closing part of the book. One covering some assumptions relevant for understanding of rival streams in ancient theories of meaning related to the nature of names and naming; the other is devoted to the ancient understanding of logical proposition and attempts to find an adequate Latin translation of the Greek delicate philosophical term “ἀξίωμα”. (shrink)

The English Synopsis is after the text of the book. The book presents an original and generalizing substantive vision of the philosophy of science through the prism of a detailed analysis of the polysystem structure of scientific theories. Theories are considered, firstly, as complex specialized forms of developed scientific thinking about the realities studied by natural science, secondly, as constantly improving tools for producing new knowledge in interaction with experimental research, and thirdly, as carriers of ordered and verified knowledge. Emphasis (...) is placed on their nominal and ontic subsystems. The book develops personal and joint research of the authors (theoretical physicist and philosopher), the experience of teaching philosophy of physics at NaUKMA, philosophy of science at the Higher School of Philosophy at the H. Skovoroda Institute of Philosophy of the National Academy of Sciences of Ukraine and theoretical physics at the National Technical University "Ihor Sikorsky Kyiv Polytechnic Institute". The research is based on a significant source base covering works of modern Western researchers in natural science and philosophy of science. For students, teachers, and scientists who are interested in the problems of modern philosophy of science and have a certain amount of scientific knowledge. It will also be useful for high school students who are eager to become scientists. (shrink)

Целью данного исследования является описание нового метода изучения доречевого языка. Предлагаемый подход позволяет соотнести эпистемологию лингвистики с общефилософскими мировоззренческими традициями других научных дисциплин. Метод построен на соответствии трёх лингвистических категорий – существительных, глаголов и междометий, по своим моторным и выразительным качествам, трём основным видам искусства – графике (изобразительному искусству), движению (танцу) и звукам (музыке), и рассматривает подобное соотношение как обусловленное природой рецепторной системы человека. Объясняя фундаментальное единство семиотической природы языка и феноменов искусства и эстетики, метод позволяет провести хронологизацию важных культурных (...) процессов. (shrink)

This paper develops a counterexample to Davidson’s elaborate model of conventionless communication, first articulated in his (1986) and defended in his (1994a). The first part contains an analysis of the model and its assumptions. Then, in a second part, I present a case focused around the concept of overhearing. It subtracts active interaction from the model and reveals that, under these novel conditions, communication makes further demands on it, namely conformity of the prior interpretive theory of all but one of (...) the interacting members. The analysis of the case concludes, in the third part, that Davidson’s account is unsuited for explaining communication where active interpretive interactions are excluded. And hence, for describing the full range of our linguistic competence. (shrink)