The Berlin Group for scientific philosophy was active between 1928 and 1933 and was closely related to the Vienna Circle. In 1930, the leaders of the two Groups, Hans Reichenbach and Rudolf Carnap, launched the journal Erkenntnis. However, between the Berlin Group and the Vienna Circle, there was not only close relatedness but also significant difference. Above all, while the Berlin Group explored philosophical problems of the actual practice of science, the Vienna Circle, closely following Wittgenstein, was more interested in (...) problems of the language of science. The book includes first discussion ever (in three chapters) on Walter Dubislav’s logic and philosophy. Two chapters are devoted to another author scarcely explored in English, Kurt Grelling, and another one to Paul Oppenheim who became an important figure in the philosophy of science in the USA in the 1940s–1960s. Finally, the book discusses the precursor of the Nord-German tradition of scientific philosophy, Jacob Friedrich Fries. Mehr anzeigen Weniger anzeigen . (shrink)

Hermanns Lotze (1817–1881) hat nachweislich einige der bedeutendsten Philosophen des fin de siècle beeinflusst: (i) die britischen „Neo-Hegelianer“; (ii) Husserls Phänomenologie; (iii) Diltheys Philosophie des Lebens; (iv) die Neukantianer; (v) die frühere analytische Philosophie. Das angegebene Ziel seines dreibändigen Mikrokosmos (1856–1864) war „die Reflexion über den Sinn unseres menschlichen Daseins“. Die Aktualität dieser Aufgabe war eine Folge der wissenschaftlichen und industriellen Revolution Mitte des 19. Jahrhunderts. Sie veränderte die Art, wie sich die Menschen das Universum vorstellten. Lotze sah Gefahr in (...) den zahlreichen Versuchen seitens einiger philosophisch interessierter Wissenschaftler in Deutschland, zu beweisen, dass das menschliche Sein nur mechanisch und materialistisch zu verstehen ist. Er machte es sich zur Aufgabe, den Menschen das Gefühl von Heimat in dieser stark veränderten Welt zurückzugeben. Dies erklärt auch, wieso Lotze seine Untersuchung in „völlig populärer Form“ darstellte. Lotzes Mikrokosmos war jedoch nicht nur ein Werk der populären Philosophie. Sie fußt auf fundierten theoretischen Überlegungen. Man kann Lotzes Werk als einen gewagten Versuch betrachten, die sich abzeichnende Spaltung zwischen akademischer und populärer Philosophie zu überwinden. (shrink)

When Wittgenstein started writing the Tractatus in June 1915, he was convinced that he was producing a theory. Accordingly, he chose a theoretical style of expressing his thought. Wittgenstein abandoned this stance only at the end of his work of composing the book. He realized that what he is producing in not a theory but a manual for improving our language and thinking. Unfortunately, it was too late to change the architecture and the style of the book: Wittgenstein simply had (...) no time to do that. This drawback makes the Tractatus notoriously difficult to understand and is apparently the major factor that caused the so called “Tractarian Wars”. (shrink)

The present paper has two objectives. First, it explicates the story, initially portrayed by Eckart Förster (2012), that allegedly philosophy started with publishing of Kant’s CPR and ended a quarter century later when Hegel’s Phenomenology of Mind appeared. We address the questions in what sense this happened and how is this development to be interpreted? Secondly, we demonstrate that similar radical transition from new, “true” beginning of philosophy to its apparent finishing took place in two other, high profile occasions in (...) the history of Western philosophy, in two key points of its development: in the years 390–365 BC, between the early and the late Plato, and between 1898 and 1922, between Russell and Wittgenstein’s Tractatus. These three short-lived, spectacular transitions from philosophy’s alleged start to its alleged ultimate accomplishment give us good reason to speak about a specific 25-years principle in philosophy. In a peculiar way, this principle reveals philosophy’s true nature. (shrink)

Historians of philosophy commonly regard as antipodal Bertrand Russell and Edmund Husserl, the founding fathers of analytic philosophy and phenomenology. This paper, however, establishes that during a formative phase in both of their careers Russell and Husserl shared a range of seminal ideas. In particular, the essay adduces clear cases of family resemblance between Husserl’s and Russell’s philosophy during their middle period, which spanned the years 1905 through 1918. The paper thus challenges the received view of Husserl’s relation to early (...) analytic philosophy and this by pursuing two strategies of exposition. One involves comparing Husserl with Russell, and not, as has been the usual practice, with Frege. The other, which follows the first, foregrounds Husserl’s thinking vis-à-vis Russell’s from 1905 onward, a move that constitutes a break with what has become the standard approach of emphasising the relatedness of Husserl of the Logical Investigations (1900/1) to analytic philosophy. Moreover, this approach discloses two chief grounds of relatedness between the middle Husserl and the middle Russell. One is their shared interest in exploring philosophical “fundamentals”. The second consists of common elements shared by their epistemologies and philosophies of mind. (shrink)

From 1901 till, at least, 1919, Russell persistently maintained that there are two kinds of logic, between which he sharply discriminated: mathematical logic and philosophical logic. In this paper, we discuss the concept of philosophical logic, as used by Russell. This was only a tentative program that Russell did not clarify in detail, so our task will be to make it explicit. We shall show that there are three (-and-a-half) kinds of Russellian philosophical logic: (i) “pure logic”; (ii) philosophical logic (...) investigating the logical forms of propositions; (iii) philosophical logic exploring the logical forms of facts: in epistemology; and in the external world. In particular, Russell’s program or philosophical logic of the facts of the external world remained less than sketchily outlined. We shall discuss it in some detail in the hope that it can start a new life. (shrink)

The task of this paper is to reconstruct Bertrand Russell project for religion without God and dogma. Russell made two attempts in this direction, first in the essay “Free Man’s Worship” (1903), and then, in theoretical form, in the paper “The Essence of Religion” (1912). Russell’s explorations of religious impulses run in parallel with his work on technical philosophy. According to Russell from 1903–12, religion is an important part of human pursuits. However, whereas the ordinary man believes in God, the (...) freeman embraces a religion without fear and dogma. He strives for a union with the universe achieved in contemplation made from many perspectives through “impartiality of vision”. For this reason freemen renounce the Self and the Will. Russell abandoned his project for religion without God mainly because of Wittgenstein’s criticism. In his later writings he continued to criticize the religion of the ordinary man, without to further develop a positive philosophy of religion, though. (shrink)

The conception of truth-making, albeit in a rudimentary form, could already be discerned in the writings of G. E. Moore and E. Husserl in the early 1900s. A few years later it was more extensively exploited by William James. It was Wittgenstein, however, who gave the concept a precise meaning. In 1913/1914 Wittgenstein advanced a theory of possible worlds, only one of which was real. Every proposition suggests a part of a possible world which does or does not correspond to (...) parts of the real world. In the first case the proposition is true, in the second case false. Moreover, the part of the real world makes the sentence true. This part is a truth-maker, and the sentence is a truth-bearer. Surprisingly enough, Wittgenstein’s concept of truth-making had its family resemblance with William James’s conception of truth. In 1915 Wittgenstein stopped using the concept of truth-making—it was also not men-tioned in the Tractatus. Unfortunately, Russell did not notice this and in 1918 he adopted the concept of truth-making. In the 1930s, it was used by some second generation analytic philosophers (Schlick, Stebbing, and Wisdom). However, it became rather popular among analytic philosophers only in the 1980s. (shrink)

Despite of the fact that Reichenbach clearly acknowledged his indebtedness to Hilbert, the influence of this leading mathematician of the time on him is grossly neglected. The present paper demonstrates that the decisive years of the development of Reichenbach as a philosopher of science coincide with, and also partly followed the “philosophical” turn of Hilbert’s mathematics after 1917 that was fixed in the so called “Hilbert’s program”. The paper specifically addresses the fact that after 1917, Hilbert saw the axiomatic method (...) as an instrument for providing the foundations not only of mathematics but also of other sciences. In particular, Hilbert’s axiomatic program was closely connected with the theoretical physics and arguably helped Einstein to discover the general theory of relativity. In this context, one can see Reichenbach’s project to axiomatize Einstein’s theory of relativity as a continuation of this project. Under Russell’s influence, after 1914 Hilbert also developed an interest in mathematical logic. Reichenbach experienced similar transition from axiomatics to logic which went together with turn of his interest from Hilbert to Russell. Reichenbach’s rapprochement to Russell also supported the transition of his interests from epistemology to ontology. (shrink)

Two concepts of utmost importance for the analytic philosophy of the twentieth century, “sense-data” and “knowledge by acquaintance”, were introduced by Bertrand Russell under the influence of two idealist philosophers: F. H. Bradley and Alexius Meinong. This paper traces the exact history of their introduction. We shall see that between 1896 and 1898, Russell had a fully-elaborated theory of “sense-data”, which he abandoned after his analytic turn of the summer of 1898. Furthermore, following a subsequent turn of August 1900—-after he (...) became acquainted with the works of Peano and later of Frege—-Russell gradually developed another theory of sense-data. With the collaboration of G. E. Moore, Russell reintroduced the term “sense-data” in 1911. Concomitantly with this move, Russell introduced the epistemological term “knowledge by acquaintance”, which came to designate the grasping of sense-data and universals. (shrink)

Gottlob Frege’s conception of works of art has received scant notice in the literature. This is a pity since, as this paper undertakes to reveal, his innovative philosophy of language motivated a theoretically and historically consequential, yet unaccountably marginalized Wittgenstinian line of inquiry in the domain of aesthetics. The element of Frege’s approach that most clearly inspired this development is the idea that only complete sentences articulate thoughts and that what sentences in works of drama and literary art express are (...) ‘mock thoughts’ (Schiengedanken). The early Wittgenstein closely followed Frege’s lead on this theme. One sees this, for example, in the Tractatus, where Wittgenstein announces that only sentential propositions model (‘picture’) states of affairs whereas works of art are objects we perceive sub specie aeternitatis (1961, 83). By the 1930s, however, Wittgenstein began to revise his view beyond his initial Frege-inspired standpoint. He came to insist that works of art can convey thoughts as well, but that thoughts do not model (picture) the world of facts and hence do not convey information about measurable objects and events. Rather, his contention was that aesthetically configured thoughts that artworks communicate impart information about our perspective on reality and reconfigure our view of life. To be more explicit, successful (gelungene) or ‘good’ works of art (ibid.), in Wittgenstein’s view, can supply aesthetically instructive ‘gestures’ that open to living experience promising new ways of being. It is in this respect, he held, that artists ‘have something to teach’ (1980, 36). (shrink)

Shortly before G. E. Moore wrote down the formative for the early analytic philosophy lectures on Some Main Problems of Philosophy (1910–1911), he had become acquainted with two books which influenced his thought: (1) a book by Husserl's pupil August Messer and (2) a book by the Greifswald objectivist Dimitri Michaltschew. Central to Michaltschew's book was the concept of the given. In Part I, I argue that Moore elaborated his concept of sense-data in the wake of the Greifswald concept. Carnap (...) did the same when he wrote his Aufbau, the only difference being that he spoke not of sense-data but of Erlebnisse. This means, I argue, that both Moore's sense-data and Carnap'sErlebnisse have little to do with either British empiricists or the neo-Kantians. In Part II, I try to ascertain what made early analytic philosophy different from all those philosophical groups and movements that either exercised influence on it, or were closely related to it: phenomenologists, Greifswald objectivists, Brentanists. For this purpose, I identify the sine qua non practices of the early analytic philosophers: exactness; acceptance of the propositional turn; descriptivism; objectivism. If one of these practices was not explored by a given philosophical school or group, in all probability, it was not truly analytic. (shrink)

The conventional wisdom has it that between 1905 and 1919 Russell was critical to pragmatism. In particular, in two essays written in 1908–9, he sharply attacked the pragmatist theory of truth, emphasizing that truth is not relative to human practice. In fact, however, Russell was much more indebted to the pragmatists, in particular to William James, as usually believed. For example, he borrowed from James two key concepts of his new epistemology: sense-data, and the distinction between knowledge by acquaintance and (...) knowledge by description. Reasonable explanation of this is that, historically, Russell’s logical realism and James’s pragmatism have the same roots—the German philosopher Rudolph Hermann Lotze (1817–1881). In this paper we are going to explore the fact that in 1905, under Lotze’s influence, Russell married propositions with beliefs. A few years later this step also made Russell prone to embrace the theory of truth-making that has its roots in James. In contrast to the concept of sense-data and to the distinction between knowledge by acquaintance and knowledge by description, however, the understanding that we believe propositions—and not, for example, simply grasp them—was in tension with Russell’s Principle of Extensionality, according to which propositions can be logically connected with other propositions only as truth-functions. The point is that when we judge a mind-relation (for example, a relation of belief) to a proposition, the latter cannot be determined as true or false. The two most talented pupils of Russell, Wittgenstein and Ramsey, severely criticized the central place propositional attitudes play in Russell’s logic. Wittgenstein analyzed “A believes that p” to “ ‘p’ says p” (5.542). Ramsey criticized Russell’s beliefs in propositions the other way round: He stressed that belief is an ambiguous term that can be interpreted for the better in the sense of pragmatism. Prima facie surprisingly, he maintained that his “pragmatism is derived from Mr Russell.” (1927: 51). (shrink)

Russell’s second philosophy of time (1899–1913), which will be the subject of this paper, is of special interest for two reasons. (1) It was basic to his New Philosophy, later called the “philosophy of logical atomism”. In fact, this philosophy didn’t initially emerge in the period of 1914– 1919, as many interpreters (e.g. A. J. Ayer) suggest, but with the introduction of Russell’s second philosophy of time (and space). The importance of Russell’s second philosophy of time for his early and (...) middle philosophy can be seen from the fact that it survived the dramatic changes in his philosophy of August–December 1900, and of July 1905. There is of course no surprise about this point: it served as their fundament. (2) Russell’s second philosophy of time is a locus classicus of all so called B-theories of time which define it in terms of the relations of before, after and simultaneous between events or moments. 20th century philosophy; absolute theory of time; theory of time; order; relation; relationist theory of time; B-series. (shrink)

Philosophy is deeply rooted in human nature. On the one hand, thinking of an infinite essence of the universe may actualize an infinite essence of humans themselves and thus root them in the Cosmos infinity. On the other hand, to think of infinity is to acquire the power of infinity, i.e., an infinite power. In short, thinking in terms of infinity fills us with infinity. Philosophy allows individuals to overstep the limits of the lived experience, transcends their Selves beyond daily (...) occurrence. Obviously, just this human transcendence into metaphysical reality, into the world of essential relationships ensures a therapeutic effect of philosophy. (shrink)

The present paper considers using Social Networking Sites (SNS) as the primary means of communication . Current situations of communication are often associated with the active use of various SNS - convenient tool for information exchange, as new media, and one of the most widespread ways of self-presentation. The author comes to the conclusion that a SNS (like Facebook) gives no effective means to discern the real face - ego-, personal or actual social identity. However, modern Internet technologies provide us (...) with useful instruments, applied to the social network analysis and semiotic approach, to define the virtual social (or personal) identity that can (or cannot) be the same as the real one. (shrink)

Wittgenstein’s interpreters are undivided that the method plays a central role in his philosophy. This would be no surprise if we have in mind the Tractarian dictum: “philosophy is not a body of doctrine but an activity” (4.112). After 1929, Wittgenstein’s method evolved further. In its final form, articulated in Philosophical Investigations, it was formulated as different kinds of therapies of specific philosophical problems that torment our life (§§ 133, 255, 593). In this paper we follow the changes in Wittgenstein’s (...) thinking in four subsequent phases and in three dimensions: (i) in logic and ontology; (ii) in method proper; (iii) in style. (shrink)

The task of this essay is to put biological individuals in formal terms. This approach is not directly interested in matters of time (for example, in evolution), but rather in the formal shape of biological objects. So it is different from, but not opposed to, natural science. In his later years, Wittgenstein made similar investigations in psychology and mathematics. Unfortunately, he found no time to make extensive remarks on philosophy of biology. This is what we are going to advance here.

The Berlin Group was an equal partner with the Vienna Circle as a school of scientific philosophy, albeit one that pursued an itinerary of its own. But while the latter presented its defining projects in readily discernible terms and became immediately popular, the Berlin Group, whose project was at least as sig-nificant as that of its Austrian counterpart, remained largely unrecognized. The task of this chapter is to distinguish the Berliners’ work from that of the Vienna Circle and to bring (...) to light its impact in the history of scientific philosophy. (shrink)

Lotze’s "Microcosm" was published in three volumes, in 1856, 1858 and 1864, respectively. It was soon one of the most widely read philosophy books of the time. It was translated into French and Russian immediately, into English in 1885/87, and into Italian in 1911/16. The book saw six editions in Germany alone by 1923.

This paper advances an assessment of Kant’s Critique of Pure Reason made from a bird’s eye view. Seen from this perspective, the task of Kant’s work was to ground the spontaneity of human reason, preserving at the same time the strict methods of science and mathematics. Kant accomplished this objective by reviving an old philosophical discipline: the peirastic dialectic of Plato and Aristotle. What is more, he managed to combine it with logic. From this blend, Kant’s transcendental idealism appeared as (...) a new logic that paralleled Aristotle’s syllogistic logic. The first result of this move was that philosophy became a formal study that treats even such subjects as ethics with rigour. Another outcome was that it established philosophy as a professional – school – discipline. In the twentieth century academy, this development was echoed by the emergence of analytic philosophy, in which Kant’s new logic evolved into a philosophical logic. (shrink)

Die Psychologie hat sich im zweiten Viertel des 19. Jahrhunderts langsam zu einer autonomen Disziplin entwickelt. Im Unterschied zu den anderen Figuren in dieser Entwicklung, Johann Friedrich Herbart, Ernst Heinrich Weber und Gustav Theodor Fechner, hat Lotze in seiner Medicinische Psychologie (1852) von Anfang an die neue Disziplin, die Psychologie, konsequent in enger Verbindung mit der Philosophie entwickelt. Damit hat er die Hoffnung gebremst, die Psychologie völlig experimentellen Untersuchungen zu überlassen, die um diese Zeit schon viele gepflegt haben. Lotze scheute (...) sich jedoch, diese Disziplin „philosophische Psychologie“ zu benennen. Sie war für ihn nur physiologische Psychologie, herausarbeitet mit Hilfe der Philosophie. Sie stellt nur Tatsachen fest, untersucht wie Körper und Seele sich zueinander verhalten und dies nicht nur empirisch, sondern auch „metaphysisch“. (shrink)

The task of this paper is to give a new, catholic interpretation of Leibniz’s concept of characteristica universalis. In § 2 we shall see that in different periods of his development, Leibniz defined this concept differently. He introduced it as “philosophical characteristic” in 1675, elaborated it further as characteristica universalis in 1679, and worked on it at least until 1690. Secondly, we shall see (in § 3) that in the last 130 years or so, different philosophers have advanced projects similar (...) to that of Leibniz, not always referring to him, at that. These very projects, we claim, threw some light on what Leibniz idea of characteristica universalis could be; or, in more positive sense, on how could it be reconstructed in a more workable way. Unfortunately, they failed to answer the question what exactly Leibniz’s philosophy was. Finally, despite the fact that Leibniz’s concept of characteristica universalis impressed generations of philosophers who tried to make sense of it, the result is that in the more than 300 years after it was introduced, it was never used in the scale its author dreamed of. This fact sets out the next objective which we are going to pursue in this paper: we shall try to find out (in §§ 4 and 5) how this concept can be interpreted in more practical form. (shrink)

It is generally acknowledged that Kant’s new “transcendental” philosophy produced a “Copernican revolution” in this discipline. Instead to philosophically explore the world, Kant investigated the possibility of cognizing the world through human reason. Unfortunately, it is not thus clear which exactly method helped Kant to produce it. The claim of the present paper is that Kant’s new approach in philosophy went together with a change of the style followed in this discipline. Instead of doing philosophical “meditations” (like Descartes) or composing (...) philosophical “essays” (like Locke and Hume), Kant introduced, what we call here, a diachronic encyclopedic approach of doing philosophy, which was brought about in the context of the highly influential in his years Encyclopédie of D’Alembert and Diderot. In contrast to the latter, however, Kant’s project prompted a logical unification of all substantial ideas introduced in philosophy so far. (shrink)

The received view has it that Hans Reichenbach and his friends of the Berlin Group worked close together with the more prominent Vienna Circle. In the wake of this view, Reichenbach was often treated as a logical positivist – despite the fact that he decisively opposed it. In this chapter we follow another thread. We shall show the “third man”– besides Reichenbach and Walter Dubislav – of the Berlin Group, Kurt Grelling, as a man who could grasp the academic trends (...) of the time faster than anybody else, who was better informed about logic and philosophy of nature than his two prominent colleagues and thus, could better delineate, although tentatively, central threads of research of the Berlin Group. Grelling did this on several occasions, but most ostensibly in the last years of his life when he was focused on problems of formal ontology. On the basis of this analysis, we shall see that in the early 1920s, Reichenbach too was led by a project in ontology of science that he elaborated together with the psychologist Kurt Lewin. Moreover, Reichenbach’s later philosophy of nature was also shaped by this project. We present this direction of philosophy of science as a “road less travelled” which, however, if revived, can point to a new direction that will more closely connect philosophy and science. (shrink)

In the last decades, several attempts were made to exploit the relatedness between the early analytic philosophers and Hegel. Some 30 years ago, Peter Hylton and Nicholas Griffin investigated the apprenticeship of Bertrand Russell with neo-Hegelians. 25 years later, the direction of interest changed. Paul Redding and Angelica Nuzzo sought a connection between Hegel and analytic philosophy following hints made by Robert Brandom and John McDowell. According to these authors, Hegel can be seen as a theorist of concepts. Moreover, they (...) found that Hegel’s understanding of concepts is close to that of the early analytic philosophy. The approach we are following in this paper is different. We shall concentrate on the relatedness between the method of the early analytic philosophers and aspects of Hegel’s method. This is an unexplored venue and we hope that our study will open a new perspective both in the history of the early analytic philosophy and in Hegel Studies. To be more explicit, we are not going to specifically investigate the genealogical connection between these two methods. We shall be mainly concerned with their kinship. (shrink)

Husserl’s theory of manifolds was developed for the first time in a very short form in the Prolegomena to his Logical Investigations, §§ 69–70 (pp. 248–53), then repeatedly discussed in Ideas I, §§ 71–2 (pp. 148–53), in Formal and Transcendental Logic, §§ 51–4 (pp. 142–54), and finally in the Crisis, § 9 (pp. 20–60). Husserl never lost sight of it: it was his idée fixe. He discussed this theme over forty years, expressing the same, in principle, ideas on it in (...) different terms and versions. His discussions of it, however, were always cut short and inconclusive, so that he never developed his theory of manifolds in detail. Main claim in this essay is that Husserl’s theory of manifolds is twofold. It is (1) a theory of theories, advanced in the good German tradition of Wissenschaftslehre, launched first by Bernard Bolzano. The latter, in turn, is an offspring of the ancient tradition of mathesis universalis, explored in the modernity by Descartes and Leibniz. Further, (2) the theory of manifolds is also a formal theory of everything. Its objective is to provide a systematic account of how the things in the world (its parts) hang together in wholes of quite different kind. It is to be noted that Husserl explicitly speaks about (1) and only implicitly about (2). In this paper we shall also show that the theory of everything is intrinsically connected with the theory of theories. (shrink)

In this paper we shall open a perspective from which the relatedness between the early analytic philosophy and Husserl’s phenomenology is so close that we can call the two programs with one name: “rigorous philosophy”, or “theory of forms”. Moreover, we shall show that the close relatedness between the two most influential philosophical movements of the 20th century has its roots in their common history. At the end of the paper we shall try to answer the question why being rather (...) related at the beginning, their ways parted in the subsequent years. (shrink)

The received view has it that analytic philosophy emerged as a rebellion against the German Idealists (above all Hegel) and their British epigones (the British neo-Hegelians). This at least was Russell’s story: the German Idealism failed to achieve solid results in philosophy. Of course, Frege too sought after solid results. He, however, had a different story to tell. Frege never spoke against Hegel, or Fichte. Similarly to the German Idealists, his sworn enemy was the empiricism (in his case, John Stuart (...) Mill). Genealogically, this stance is not difficult to explain. Frege grew up as a philosopher in the context of the German Idealists. He was a member of Karl Snell’s “Sunday Circle” of university teachers in Jena. The group was influenced with Schelling and the German romanticists. The first Anglophone scholar to point out what Frege's thought owes to nineteenth-century Germany philosophy, Hans Sluga, argued that Frege followed the philosophical-logical tradition originating with Leibniz and Kant which Trendelenburg and Lotze developed significantly. About the same time, a philosophical historian writing in German, Gottfried Gabriel, did much to bring this tradition to light, casting Frege as neo-Kantian. Advancing beyond Sluga and Gabriel, the present paper reveals that through the mediation of Trendelenburg and especially of Lotze many elements of German idealism found their way into Frege's logic and philosophy. (shrink)

Many authors believe that the manuscripts Frege wrote in 1924–1925 are not theoretically of interest. They are rather a product of his emotional despair and theoretical dead-end which he reached in the last years of his life. Such is also the judgement of Michael Dummett delivered in his seminal book Frege: Philosophy of Language. According to Dummett, “the few fragmentary writings of Frege’s final period—1919–1925—are not of high quality: they are interesting chiefly as showing that Frege did, at least at (...) the very end of his life, acknowledge the failure of the logicist programme” (Dummett 1981, p. 664). In this paper we will try to show that the widely accepted negative assessment of Frege’s latest writings is due to a lack of understanding of their true idea. In fact, the change in Fre-ge’s mind in the last two or three years of his life was result of long deliberations on a severe tension in his founding intuitions. The change itself made his logico-philosophical project more coherent and, thus, is of utmost theoretical importance. (shrink)

Between April and November 1912, Bertrand Russell and Ludwig Wittgenstein were engaged in a joint philosophical program. Wittgenstein‘s meeting with Gottlob Frege in December 1912 led, however, to its dissolution – the joint program was abandoned. Section 2 of this paper outlines the key points of that program, identifying what Russell and Wittgenstein each contributed to it. The third section determines precisely those features of their collaborative work that Frege criticized. Finally, building upon the evidence developed in the preceding two (...) sections, section 4 recasts along previously undeveloped lines Wittgenstein‘s logical–philosophical discoveries in the two years following his encounter with Frege in 1912. The paper concludes, in section 5, with an overview of the dramatic consequences the Frege-Wittgenstein critique had for Russell‘s philosophical development. (shrink)

Many historians of analytic philosophy consider the early philosophy of Moore, Russell and Wittgenstein as much more neo-Hegelian as once believed. At the same time, the authors who closely investigate Green, Bradley and Bosanquet find out that these have little in common with Hegel. The thesis advanced in this chapter is that what the British (ill-named) neo-Hegelians brought to the early analytic philosophers were, above all, some ideas of Lotze, not of Hegel. This is true regarding: (i) Lotze’s logical approach (...) to practically all philosophical problems; (ii) his treating of the concepts relation, structure (constructions) and order; (iii) the discussion of the concepts of states of affairs, multiple theory of judgment, general logical form; (iv) some common themes like panpsychism and contemplating the world sub specie aeternitatis. (shrink)

The paper presents a new approach to the history of analytic philosophy. Instead of exploring different kinds of analysis (Michael Beaney), or to marry analytic philosophy to the analytic / synthetic distinction (Scott Soames), we turn attention to the fact that it was rooted in two different types of logical constructing. The discrepancy between the two concepts of logical constructing produced much unclarity in our understanding of analytic philosophy.

Karl Popper has often been cast as one of the most solitary figures of twentieth-century philosophy. The received image is of a thinker who developed his scientific philosophy virtually alone and in opposition to a crowd of brilliant members of the Vienna Circle. This paper challenges the received view and undertakes to correctly situate on the map of the history of philosophy Popper’s contribution, in particular, his renowned fallibilist theory of knowledge. The motive for doing so is the conviction that (...) the mainstream perspective on Popper’s philosophy makes him more difficult to understand than might otherwise be the case. The thinker who figures most significantly in the account of Popper developed in these pages is Leonard Nelson. Both a neo-Friesian and neo-Kantian, this philosopher deeply influenced Popper through his student Julius Kraft, who met with Popper on numerous occasions in the mid 1920s. It is in the light of this influence that we understand Popper’s recollection that when he criticized the Vienna Circle in the early 1930s, he looked upon himself “as an unorthodox Kantian”. (shrink)

In the late 1920s and early 1930s, the philosopher Hans Reichenbach led a group of like-minded colleagues in Berlin that must count as an independent point of origin of the movement of logical empiricism. Like the Vienna Circle with whom they cooperated on numerous occasions, their concern was to develop a philosophy of science adequate to the latest advances in science itself. Differences of philosophical background and interests, however, resulted in putting different accents by justifying scientific knowledge.

The task of this paper is to show that Franz Brentano was not a solitary figure who advanced his philosophy in complete isolation from other contemporary philosophers in Germany, as some Neo-Brentanists have claimed over the last 30–40 years. He developed his philosophical psychology in the context of his time—in particular, under the influence of Hermann Lotze.

Unsere These lautet, dass die Geschichte des logischen Empirismus bisher nicht in ihrer ganzen Komplexität dargestellt wurde. Es herrscht das Bild vor, dass vor allem der Wiener Kreis die wissenschaftliche Philosophie seiner Zeit dominiert habe. In Wirklichkeit waren Hans Reichenbach und die Philosophen und Wissenschaftler in seiner Gruppe mehr als nur geistige Verwandte der Wiener logischen Empiristen. Die Berliner Gruppe war ein gleichberechtigter Partner bei der Verbreitung wissenschaftlicher Philosophie im deutschsprachigen Raum um 1930 und schlug dabei durchaus einen individuellen Weg (...) ein. Reichenbach hat daher auch ausdrücklich die Eigenständigkeit der Berliner Gruppe innerhalb des logischen Empirismus verteidigt (Hoffmann 1994, 26). Dabei kämpfte er nicht einfach für Gleichberechtigung mit dem Wiener Kreis. Reichenbach beanspruchte sogar die Priorität der Initiative. (shrink)

This paper outlines the intellectual biography of Walter Dubislav. Besides being a leading member of the Berlin Group headed by Hans Reichenbach, Dubislav played a defining role as well in the Society for Empirical/Scientific Philosophy in Berlin. A student of David Hilbert, Dubislav applied the method of axiomatic to produce original work in logic and formalist philosophy of mathematics. He also introduced the elements of a formalist philosophy of science and addressed more general problems concerning the substantiation of human knowledge. (...) What set Dubislav apart from the other logical empiricists was his expertise in the history of logic and exact philosophy which enabled him to elucidate and advance the thinking in both disciplines. In the realm of logic proper, Dubislav is best known for his pioneering work in theory of definitions. What is more, he did original work on the so called ‘quasi truth-tables’ which aided Reichenbach in developing his logic of probability. Dubislav also elaborated an influe.. (shrink)

Carl Stumpf (1848–1937) is a key figure in the fin de siècle germanophone philosophy. Unfortunately, after the World War One, the interest towards Stumpf as a philosopher waned. One of the reasons was that already in the 1920s the attention of the mainstream philosophers shifted in direction of the rising rivalry between analytic and continental philosophy. The interest towards Carl Stumpf’s philosophy was revived only in the last twenty years or so. Great service in this provided the Neo-Brentanists. But while (...) the association of Carl Stumpf with Franz Brentano fostered Stumpf studies, it also gave rise of one-sided interpretations of Stumpf as a philosopher. In this way his importance and idiosyncrasy as philosopher remained in shadow. (shrink)

The present paper discusses the radical changes witnessed in the political landscape of the world today. After 25 years of post-Cold World hopes for triumph of liberal democracy, the years between 2014 and 2016 shattered the Western World. The annexation of Crimea by Putin’s Russia came first in March 2014, then in June 2016, the Berxit of Boris Johnson followed and finally in November 1916, came the stunning victory of Donald Trump at the US presidential elections. These developments can be (...) called the illiberal turn in politics and ideology. (shrink)

This paper introduces a novel interpretation of Wittgenstein’s Tractatus, a work widely held to be one of the most intricate in the philosophical canon. We understand the Tractatus not as the development of a theory but as the advancement of a new logical symbolism (a new instrument) that enables one to “recognize the formal properties [the logic] of propositions by mere inspection of propositions themselves” (6.122). Moreover, the Tractarian conceptual notation stands to instruct us in a better way to follow (...) the logic of language, and by that token, enhances our ability to think. Upon acquiring the thinking skills that one can develop by working with this symbolism, one can “throw away [this] ladder” (6.54), as it were, and move on. (shrink)

Dieser Versuch einer philosophischen Autobiographie ist hauptsächlich der Geschichte meiner Ideen und Anregungen im Bereich der Philosophie gewidmet. In dieser Zusammenfassung werden vor allem meine philosophischen Begegnungen und Veröffentlichungen besprochen. Es ist weniger die Geschichte meines privaten Lebens, da bei mir privates und berufliches Leben zum großen Teil zusammenfallen.

Aristotle first investigated different modes, or ways of being. Unfortunately, in the modern literature the discussion of this concept has been largely neglected. Only recently, the interest towards the concept of ways increased. Usually, it is explored in connection with the existence of universals and particulars. The approach we are going to follow in this chapter is different. It discusses Wittgenstein’s conception of higher ontological levels as ways of arranging elements of lower ontological levels. In the Tractatus, Wittgenstein developed his (...) ontology of ways (Art und Weise) in six steps: (i) Constructing states of affairs out of objects; (ii) Constructing propositions out of states of affairs; (iii) Constructing propositional signs; (iv) Constructing thoughts with the help of propositional signs; (v) Constructing truth / falsity; (vi) Constructing works of art. In Philosophical Investigations he added further five ways of producing new ontological levels: (vii) the meaning of a proposition is the way in which it is verified; (viii) the child gets command on language/calculus in the way it replicates demonstrations of the teacher; (ix) the products of mind are ways of doing something; (x) an action is a way of carrying out the instructions for acting. (shrink)

Walter Dubislav (1895–1937) was a leading member of the Berlin Group for scientific philosophy. This “sister group” of the more famous Vienna Circle emerged around Hans Reichenbach’s seminars at the University of Berlin in 1927 and 1928. Dubislav was to collaborate with Reichenbach, an association that eventuated in their conjointly conducting university colloquia. Dubislav produced original work in philosophy of mathematics, logic, and science, consequently following David Hilbert’s axiomatic method. This brought him to defend formalism in these disciplines as well (...) as to explore the problems of substantiating (Begründung) human knowledge. Dubislav also developed elements of general philosophy of science. Sadly, the political changes in Germany in 1933 proved ruinous to Dubislav. He published scarcely anything after Hitler came to power and in 1937 committed suicide under tragic circumstances. The intent here is to pass in review Dubislav’s philosophy of logic, mathematics, and science and so to shed light on some seminal yet hitherto largely neglected currents in the history of philosophy of science. (shrink)

State of affairs (Sachverhalt) is one of the few terms in philosophy, which only came into use for the first time in the twentieth century, mainly via the works of Husserl and Wittgenstein. This makes the task of finding out who introduced this concept into philosophy, and in exactly what sense, of considerable interest. Our thesis is that Lotze introduced the term in 1874 in the sense of the objective content of judgments, which is ipso facto the minimal structured ontological (...) unit. We would argue against authors such as Michael Dummett and Barry Smith, who have tried to prove that Lotze's theory of judgment, and so of states of affairs, was ad-vanced in the wake of psychologism. (shrink)

Recently, Michael Friedman has claimed that virtually all the seeds of Hempel’s philosophical development trace back to his early encounter with the Vienna Circle (Friedman 2003, 94). As opposed, however, to Friedman’s view of the principal early influences on Hempel, we shall see that those formative influences originated rather with the Berlin Group. Hempel, it is true, spent the fall term of 1929 as a student at the University of Vienna, and, thanks to a letter of recommendation from Hans Reichenbach, (...) he even attended some sessions of the Vienna Circle. But he spent much less time in Vienna than in Berlin, where he studied under Reichenbach from 1926 till 1933 and wrote a dissertation on probability, Reichenbach’s specialty. Hempel also attended seminars conducted by Walter Dubislav, another member of the Berlin Group. (shrink)