In “Empiricism, Semantics, and Ontology” Carnap drew his famous distinction between ‘internal’ and ‘external’ questions of existence, pronouncing the former meaningful and the latter meaningless. In The Significance of Philosophical Scepticism, Barry Stroud understands Carnap to be applying the verification criterion of meaningfulness in order to refute Cartesian skepticism. I suggest that Stroud misrepresents both Carnap’s aim and method. Carnap was responding to critics who suggested that his willingness to quantify over abstract entities in his work in semantics violated his (...) commitment to empiricism. He rejected that criticism as presupposing a super-scientific standpoint from which constraints on the admissible domain of entities of science could be delivered. Carnap wanted to insulate science from the imposition of frrst-philosophical metaphysical prejudice, not to defuse scepticism by appeal to verificationism. (shrink)

In “Empiricism, Semantics, and Ontology” Camap drew his famous distinction between ‘internal’ and ‘external’ questions of existence, pronouncing the former meaningful and the latter meaningless. In The Significance of Philosophical Scepticism, Barry Stroud understands Carnap to be applying the verification criterion of meaningfulness in order to refute Cartesian skepticism. I suggest that Stroud misrepresents both Carnap's aim and method. Camap was responding to critics who suggested that his willingness to quantify over abstract entities in his work in semantics violated his (...) commitment to empiricism. He rejected that criticism as presupposing a super‐scientific standpoint from which constraints on the admissible domain of entities of science could be delivered. Carnap wanted to insulate science from the imposition of first‐philosophical metaphysical prejudice, not to defuse scepticism by appeal to verificationism. (shrink)

In “Empiricism, Semantics, and Ontology” Camap drew his famous distinction between ‘internal’ and ‘external’ questions of existence, pronouncing the former meaningful and the latter meaningless. In The Significance of Philosophical Scepticism, Barry Stroud understands Carnap to be applying the verification criterion of meaningfulness in order to refute Cartesian skepticism. I suggest that Stroud misrepresents both Carnap's aim and method. Camap was responding to critics who suggested that his willingness to quantify over abstract entities in his work in semantics violated his (...) commitment to empiricism. He rejected that criticism as presupposing a super‐scientific standpoint from which constraints on the admissible domain of entities of science could be delivered. Carnap wanted to insulate science from the imposition of first‐philosophical metaphysical prejudice, not to defuse scepticism by appeal to verificationism. (shrink)

While this Journal is not the place for an extended discussion of the exegeticalpoints raised by Thomas Oberdan’s ‘The Vienna Circle’s ‘‘Anti-Foundation-alism’’’ [1998], some brief remarks are required to correct his misunderstand-ing of my position on the relevant issues, to stress the highly controversialstatus of his own interpretation and to counter his portrayal of the dialectics ofthe debate.

Throughout the late nineteenth and early twentieth centuries, philosophers of various sorts, including Helmholtz, Avenarius, Husserl, Russell, Carnap, Neurath, and Heidegger, were united in promulgating a new, “scientific” philosophy. This article documents some of the varieties of scientific philosophy and argues that the history of scientific philosophy is crucial to the development of analytic philosophy and the division between analytic and continental philosophy. Scientific philosophy defined itself via criticisms of old-fashioned systematic metaphysics and, in the twentieth century, of Lebensphilosophie. It (...) offered a modernist vision of philosophy participating in a progressive, problem-solving, piecemeal, and collaborative scientific ethos. The article argues that the rise of scientific philosophy indicates a change of the conception of science as well as philosophy in the late nineteenth century and notes some tensions in the accounts of science offered by scientific philosophers. The article offers some preliminary lessons for the interpretation of logical empiricism and phenomenology as episodes within a larger history of scientific philosophy. (shrink)

Uebel has recently claimed that, contrary to popular opinion, none of the philosophers of the Vienna Circle of Logical Positivists were proponents of epistemological foundationalism. According to the considerations of the current discussion, however, Uebel's conclusion is erroneous, especially with respect to the work of Moritz Schlick. The chief reason Uebel offers to support his conclusion is that current attempts to portray Schlick's epistemology as foundationalist fail to overcome its ‘ultimate incoherence’. In contrast, it is argued that current interpretations, based (...) on the unpublished as well as the published record, provide understandings of Schlick's foundationalist epistemology as not only coherent, but plausible. In closing, Uebel's own treatment of Schlick's work, which purports to show that the most feasible candidates for foundational statements are ‘meaning-theoretic’ clarifications of the content of expressions, itself fails to accurately represent Schlick's own characterizations, and pictures Schlick's epistemology as a confused mix of epistemic and semantic insights. (shrink)

Resumen Este trabajo reconstruye la caracterización de “positivismo” en tres obras centrales de Horkheimer. Se afirma que, en el uso del término, Horkheimer incurre en una doble equivocidad, pues lo utiliza indistintamente para referirse al positivismo decimonónico y al del siglo XX; además, no reconoce las diferencias internas entre las posiciones de los positivistas contemporáneos. Asimismo, se muestra que muchos rasgos que se consignan como propios del positivismo del siglo XX no tienen justificación en los textos de esa tradición, de (...) manera que la categoría horkheimeriana de “positivismo” se convierte en una entidad interpretativa respecto de la cual la Escuela de Fráncfort se considera antagónica. A partir de lo anterior se realiza una crítica a las interpretaciones del autor.This paper reconstructs the characterization of “positivism” in Horkheimer’s works. We argue that in the use of this term, Horkheimer makes a misinterpretation, then he uses it in order to refer to both nineteenth century positivism and the positivism of the twentieth century; at the same time, he does not recognize the significant contrasts between the positions of the twentieth century positivists. We also show that many of the features Horkheimer sets out for twentieth century positivists find no correlation in texts belonging to this tradition, which makes Horkheimer’s concept of “positivism” an interpretative entity in opposition to Frankfurt School. From the foregoing, we carry out a critique of the interpretations made by the author. (shrink)

When Schlick introduced his theory of ”Konstatierungen“ in the Vienna Circle’s Protocol-Sentence Debate, the sole other member of the Circle who took part on his side was his former disciple B´ela Juhos. However, Juhos’ own conception, developed in full extend only later, differs in important respects from the one of his teacher. Both conceptions are critically examined in the first part of this paper. The second part is devoted to an examination of the charge that such basic propositions are by (...) all means useless because of incommunicability. (shrink)

It is one of the distinctive claims of Neurath, though not of the Vienna Circle generally, that the Vienna Circle's philosophy was not really German philosophy at all. The relation is, if Neurath is to be trusted, anything but straight-forward. To understand it, not only must some effort be expended on specifying Neurath's claim, but also on delineating the different party-lines within the Vienna Circle.

Starting from the sixties of the past century theory change has become a main concern of philosophy of science. Two of the best known formal accounts of theory change are the post-Popperian theories of verisimilitude (PPV for short) and the AGM theory of belief change (AGM for short). In this paper, we will investigate the conceptual relations between PPV and AGM and, in particular, we will ask whether the AGM rules for theory change are effective means for approaching the truth, (...) i.e., for achieving the cognitive aim of science pointed out by PPV. First, the key ideas of PPV and AGM and their application to a particular kind of propositional theories - the so called "conjunctive propositions" - will be illustrated. Afterwards, we will prove that, as far as conjunctive propositions are concerned, AGM belief change is an effective tool for approaching the truth. (shrink)

Philipp Frank––physicist, philosopher, and early member of the Vienna Circle––is often neglected in retrospective accounts of twentieth century philosophy of science, despite renewed interest in the work of the Vienna Circle. In this thesis, I argue that this neglect is unwarranted. Appealing to a variety of philosophical and historical sources, I trace the development of Frank’s philosophical thought and, in so doing highlight the roles played by history, sociology, values, and pragmatism in his philosophy of science. Turning to contemporary literature, (...) I then argue that Frank’s work should be understood as an early instance of what is now called “socially engaged philosophy of science.” This understanding is explored through a careful consideration of his work on education, where previous work on history, sociology, values, and pragmatism is applied to an important, real-world problem. This socially engaged reading of Frank extends beyond pragmatic issues of theory application, because as I show, Frank used sociology to argue for the meaningfulness of metaphysical claims. However, Frank’s account of meaning may seem to be problematic since it heavily relies on Percy Bridgman’s operationalism. So, I outline the problems associated with Bridgman’s account of operationalism and show that Frank’s view does not fall prey to the same criticisms. After these objections are addressed, Frank’s work is contextualized in the broader debate about value-free science, where I argue that Frank did not endorse the value-free ideal. As a result of these findings, we will not only have a clearer picture of Frank’s philosophical contributions, but also a better understanding of how the philosophy of science can better engage important social issues. (shrink)

Recent Carnap scholarship suggests that the received view of the Carnap-Quine analyticity debate is importantly mistaken. It has been suggested that Carnap’s analyticity distinction is immune from Quine’s criticisms. This is either because Quine did not understand Carnap’s use of analytic-ity, or because Quine did not appreciate that, rather than dispelling dog-mas, he was merely offering an alternate framework for philosophy. It has also been suggested that ultimately nothing of substance turns on this dis-pute. I am sympathetic to these reassessments (...) and their rejection of the re-ceived view, but argue that they fail to pay proper attention to Carnap’s metaphysical deflationism. For it is there that Quine’s arguments ultimately make contact with Carnap, undermining his metaphysical deflationism. Moreover, the viability of deflationism is directly related to the viability of Carnap’s view of philosophy as methodologically distinct from science. Hence, Quine’s criticisms make contact with the deepest aspects of Carnap’s views. (shrink)