The thesis aims at a methodological reflection of logical reconstruction and tries to develop this method in detail, especially with regard to the reconstruction of natural language arguments. First, the groundwork for the thesis is laid by presenting and, where necessary, adapting its foundations with regard to the philosophy of language and the theory of argument. Subsequently, logical reconstruction, especially the logical reconstruction of arguments, is presented as a hermeneutic method and as a tool for the application of (formal) logic (...) and argumentation theory to natural language arguments. Logical reconstruction is presented as a special type of exegetical interpretation by paraphrase that is subject to (adapted) hermeneutic maxims and presumption rules that govern exegetical interpretation in general. However, in contrast to the interpretation of texts by natural language paraphrases, logical reconstruction leads to interpretantia that are logically explicit formal language texts and can be analyzed using formal methods and meta-theoretical concepts that are not directly applicable to natural language texts. By providing explicit and precise records of different readings, logical reconstruction can thus help to clarify (and maybe even solve) persistent interpretation controversies. Through an adaptation and specification of hermeneutic maxims and presumption rules, the thesis aims at providing suitable means for the systematic guidance and evaluation of logical reconstructions of argumentative texts. As a genuinely interpretative undertaking, logical reconstruction will be distinguished from the non-interpretative enterprise of formalization and from the development of theories of logical form, which provide a framework in which formalization and reconstruction take place. As exegetical interpretations, logical reconstructions of texts that are not readily formalizable can still be assessed with respect to their hermeneutic quality. The hermeneutic method of logical reconstruction can thus widen the scope for the application of logic and argumentation theory, because it allows us to use formal methods for the analysis and assessment of "difficult" natural language texts in a non-arbitrary, albeit indirect way. The last part of the thesis presents a manual for the logical reconstruction of natural language arguments, whose application is illustrated step by step. (shrink)

Using a short excerpt from Anselm's Responsio as an example, this paper tries to present logical reconstruction as a special type of exegetical interpretation by paraphrase that is subject to (adapted) hermeneutic maxims and presumption rules that govern exegetical interpretation in general. As such, logical reconstruction will be distinguished from the non-interpretative enterprise of formalization and from the development of theories of logical form, which provide a framework in which formalization and reconstruction take place. Yet, even though logical reconstruction is (...) dependent on methods of formalization, it allows us to use formal methods for the analysis and assessment of natural language texts that are not readily formalizable and is thus an important tool when it comes to applying the concepts and methods of formal logic to such texts. (shrink)

We outline a pragmatic-normative understanding of logic as a discipline that is completely anchored in the sphere of action, rules, means and ends: We characterize inferring as a speech act which is in need of regulation and we connect inferential rules with consequence relations. Furthermore, we present a scenario which illustrates how one actually assesses or can in principle assess the quality of logical rules with respect to justificatory questions. Finally, we speculate on the origin of logical rules as a (...) means of supporting our practice of inferring. (shrink)

We argue that the need for commentary in commonly used linear calculi of natural deduction is connected to the “deletion” of illocutionary expressions that express the role of propositions as reasons, assumptions, or inferred propositions. We first analyze the formalization of an informal proof in some common calculi which do not formalize natural language illocutionary expressions, and show that in these calculi the formalizations of the example proof rely on commentary devices that have no counterpart in the original proof. We (...) then present a linear natural deduction calculus that makes use of formal illocutionary expressions in such a way that unique readability for derivations is guaranteed – thus showing that formalizing illocutionary expressions can eliminate the need for commentary. (shrink)

Claims that agents must accept or reject certain propositions “on pain of self-contradiction” play a key role in Alan Gewirth’s dialectically necessary method. The aim of this paper is to investigate Gewirth’s method with respect to the relation between such claims, entailment and self-contradiction. I will identify certain bridge principles connecting obligatory acceptance, rejection and entailment that seem to be presupposed by Gewirth. Contrary to what seems to be Gewirth’s view, these principles, e. g., that one must accept simple and (...) direct consequences of propositions that one must accept, do not follow from minimal rationality demands with respect to the avoidance of self-contradiction. Moreover, the bridge principles themselves appear to be rather problematic. Still, plausible dialogical versions of them can be developed. This dialogical treatment is not confined to the transfer of obligatory acceptance and rejection via entailment, but can be extended to primary acceptance with respect to the starting premises. It might seem questionable whether such a dialogical strategy is acceptable to a strict Gewirthian, since agents would have to accept certain propositions not “on pain of self-contradiction,” but on pain of violating dialogical principles which would have to be justified independently. However, even Gewirth’s demands with respect to the avoidance of self-contradiction go beyond what the rules of logic require. It seems that the dialectically necessary method cannot proceed without acknowledging a normative sphere of discursive practices. (shrink)

Logical reconstruction is a fundamental philosophical method for achieving clarity concerning the prerequisites, presuppositions and the logical structure of natural language arguments. The scope and limits of this method have become visible not least through its intense application to Anselm of Canterbury’s notorious proofs for the existence of God. This volume collects, on the one hand, reconstructions of Anselmian arguments that take account of the problems of reconstruction and, on the other hand, theoretical reflections on reconstruction with a view to (...) Anselm. We hope that this will allow the reader to critically assess the merits of the theoretical accounts in the light of the reconstructions and the merits of the reconstructions in the light of the theoretical accounts. In general, by considering the example of an outstanding thinker in one or the other way, this volume aims at advancing the methodology and the practice of logical reconstruction. The following remarks explain and motivate this undertaking: What purposes does logical reconstruction serve? What purposes does the reflection on logical reconstruction serve? In which ways can the practice and theory of reconstruction profit particularly from studying Anselm’s reasoning? How can the resulting problems be addressed? – Finally, a short overview over the contributions to this volume is offered. (shrink)

This volume brings together papers on the theory of reconstruction that pay attention to the humdrum exercise of everyday reconstruction and papers that develop reconstructions of Anselmian arguments with a view to the theoretical problems of reconstruction. We hope that this will provide the readers with an opportunity to assess the merits of the theoretical accounts in the light of the reconstructions and the merits of the latter in the light of the former.

Peregrin and Svoboda propose an inferential and holistic approach to formalization, and a similar approach (to correctness) is considered by Brun. However, while the inferential criteria of adequacy explicitly endorsed by these authors may be holistic "in spirit," they are formulated for single formulas. More importantly, they allow the trivialization of equivalence and face problems when materially correct arguments come into play. Against this background, this paper tries to motivate holistic inferential criteria that compel us to distinguish carefully between non-trivially (...) equivalent formalizations as well as between materially and logically correct arguments on an inferential basis. (shrink)

Building on the work of Peter Hinst and Geo Siegwart, we develop a pragmatised natural deduction calculus, i.e. a natural deduction calculus that incorporates illocutionary operators at the formal level, and prove its adequacy. In contrast to other linear calculi of natural deduction, derivations in this calculus are sequences of object-language sentences which do not require graphical or other means of commentary in order to keep track of assumptions or to indicate subproofs. (Translation of our German paper "Ein Redehandlungskalkül. Ein (...) pragmatisierter Kalkül des natürlichen Schließens nebst Metatheorie"; online available at http://philpapers.org/rec/CORERE.). (shrink)

Building on the work of Peter Hinst and Geo Siegwart, we develop a pragmatised natural deduction calculus, i.e., a natural deduction calculus that incorporates illocutionary operators at the formal level, and prove its adequacy. In contrast to other linear calculi of natural deduction, derivations in this calculus are sequences of object-language sentences which do not require graphical or other means of commentary in order to keep track of assumptions or to indicate subproofs.

Wir stellen einen pragmatisierten Kalkül des natürlichen Schließens vor, der sich dadurch auszeichnet, dass Ableitungen reine Folgen objektsprachlicher Sätze sind und ohne graphische oder andere Kommentarmittel auskommen.

Dieser Band umfasst 35 Texte des Wiener Philosophen und Wissenschaftstheoretikers Friedrich G. Wallner aus den 1980er Jahren. Sie setzen sich allesamt auseinander mit dem sprachphilosophischen Denken des fruhen wie spaten Wittgenstein. Die Auseinandersetzung erfolgt dabei in einer zweifachen Weise: In einem ersten Teil gilt es den Texten, Grundgedanken Wittgensteins zu analysieren, zu erhellen sowie deren Pragungen und Einflusse aufzuzeigen. Dabei werden der Ansatz seines Denkens sowie dessen Bedeutung fur Wissenschaftstheorie und Dichtung erortert. In einem zweiten Teil verfolgen die Texte (...) das Ziel, im Anschluss an Wittgenstein ein Konzept von Philosophie auszuarbeiten, welches Philosophie als Therapie begreift. Ein Konzept, welches im Horizont der Einzelwissenschaften mehrfach zur Anwendung kommt.". (shrink)

Die Frage nach dem Subjekt politischen Handelnsist eines der aktuellen Themen politischer Theoriebildung. Das Neue Testament zeigt im Zuge seiner vielfältigen Interpretationen der Geschichte Jesu Christi aufschlussreiche Aspekte der Subjektwerdung. Dabei werden lohnende Perspektiven auf gegenwärtige Theorien des politischen Subjekts sichtbar, deren interdisziplinäre Reflexion einen Beitrag zum gegenwärtigen Diskurs des Politischen bildet.

Published posthumously in 1908, Ecce Homo was written in 1888 and completed just a few weeks before Nietzsche’s complete mental collapse. Its outrageously egotistical review of the philosopher’s life and works—featuring chapters called Why I Am So Wise and Why I Write Such Good Books—are redeemed from mere arrogance by masterful language and ever-relevant ideas. In addition to settling scores with his many personal and philosophical enemies, Nietzsche emphasizes the importance of questioning traditional morality, establishing autonomy, and making a commitment (...) to creativity. Essential reading for students of philosophy, this unique memoir is crucial to an understanding of Nietzsche’s other works. (shrink)

In this study Friedrich Waismann gives a systematic presentation of insights into philosophical problems which can be achieved by clarifying the language in which the problems are posed. Much of the material and the method itself derive from Wittgenstein's work in the early 30s. The book was originally envisaged as a lucid and well organized account of Wittgenstein's distinctive form of linguistic philosophy to enable the Vienna Circle to incorporate these valuable methods into their own programme of analysis. The (...) project evolved over many years into a wide-ranging survey of the dissolution of many philosophical problems and the construction of a systematic philosophical grammar. Waismann shows in detail how puzzlement can be removed by careful description of the uses of the terms employed in framing problems. At the same time, he sketches a general framework for analysis of language, including chapters on names, general terms, logical operators, propositions, questions, etc. This book is an authoritative presentation of Wittgenstein's influential philosophy of language in a format much easier to follow than his own intricate and elusive texts. Waismann exhibits clearly the merits of this method of philosophizing. This book should serve as an important and useful text for those who wish to understand the method and power of linguistic philosophy. It has no equal as an introduction to Wittgenstein's philosophy. (shrink)

The Origin of the Family, Private Property and the State (1884), was a provocative and profoundly influential critique of the Victorian nuclear family. Engels argued that the traditional monogamous household was in fact a recent construct, closely bound up with capitalist societies. Under this patriarchal system, women were servants and, effectively, prostitutes. Only Communism would herald the dawn of communal living and a new sexual freedom and, in turn, the role of the state would become superfluous.

The Voices of Wittgenstein brings for the first time, in both the original German and in English translation, over one hundred short essays in philosophical logic and the philosophy of mind. This text is of key historical importance to understanding Wittgenstein's philosophical thought and development in the 1930's. Transcribed from the papers of Friedrich Waismann and dating from 1932 to 1935, the majority are highly important dictations by Wittgenstein to Waismann. It also includes texts of redrafted material by Waismann, (...) closely based on these dictations. (shrink)

Buch 1. Geschichte des Materialismus bis auf Kant.--Buch 2. Geschichte des Materialismus seit Kant.

A work of Nietzsche's later years, The Antichrist was written after Thus Spoke Zarathustra and shortly before the mental collapse that incapacitated him for the rest of his life. The work is both an unrestrained attack on Christianity and a further exposition of Nietzsche's will-to-power philosophy so dramatically presented in Zarathustra. Christianity, says Nietzsche, represents "everything weak, low, and botched; it has made an ideal out of antagonism towards all the self-preservative instincts of strong life." By contrast, Nietzsche defines good (...) as: "All that enhances the feeling of power, the Will to Power, and power itself in man. What is bad?-All that proceeds from weakness. What is happiness?-The feeling that power is increasing,-that resistance has been overcome." In attempting to redefine the basis of Western values by demolishing the formative influence of the Judeo-Christian tradition, The Antichrist has proved to be highly controversial and continuously stimulating to later generations of philosophers. (shrink)

The present work carries us back to a period which, although chronologically no more than a generation or so behind us, has become as foreign to the present generation in Germany as if it were already a full hundred years old. Yet it was the period of Germany's preparation for the Revolution of 1848; and all that has happened in our country since then has been merely a continuation of 1848, merely the execution of the last will and testament of (...) the revolution. Just as in France in the eighteenth century, so in Germany in the nineteenth, a philosophical revolution ushered in the political collapse. But with what a difference! The French were in open combat with all official science, with the church and often also the state; their writings were printed beyond the frontier, in Holland or England, while they themselves were often on the point of landing in the Bastille. But the Germans were professors, state-appointed instructors of youth; their writings were recognized textbooks, and the system rounding off the whole development---the Hegelian system---was even raised, in some degree, to the rank of a royal Prussian philosophy of state! Was it possible that a revolution could hide behind these professors, behind their pedantically obscure phrases, their ponderous, wearisome sentences? Were not the liberals, the very people who then passed as the representatives of the revolution, the bitterest opponents of this brain-befuddling philosophy? But what neither governments nor liberals saw was seen by at least one man as early as 1833, and indeed by a man called Heinrich Heine. (shrink)

v. 1. The birth of tragedy; or, Hellenism and pessimism.--v. 2. Early Greek philosophy & other essays.--v. 3. On the future of our educational institutions. Homer and classical philology.--v. 4-5. Thoughts out of season.--v. 6-7. Human, all-too-human.--v. 8. The case of Wagner. Nietzsche contra Wagner. Selected aphorisms.--v. 9. The dawn of day.--v. 10. The joyful wisdom.--v. 11. Thus spake Zarathustra.--v. 12. Beyond good and evil.--v. 13. The genealogy of morals. Peoples and countries.--v. 14.-15. The will to power.--v. 16.--The twilight of (...) the idols; or, How to philosophise with the hammer. The antichrist.--v. 17. Ecce homo, Nietzsche's autobiography.--v. 18. Guppy, R. Index to Nietzsche. (shrink)

Classic, influential study of Greek tragedy.

The author attempts to sketch a new picture of language: language is stratified into layers, each layer having a logic of its own and being separated from the others by gaps over which one may jump but which cannot be bridged by logical processes. Philosophers try to bridge the gaps and become entangled in pseudo-problems. Law statements exemplify one stratum, thing statements another, sense-datum statements another, ethical statements another, and so on. The different subject-matters are to be characterized by reference (...) to the different strata, rather than conversely; a sense impression is something that is describable in a language of such-and-such structure; a material object is something which can be described in such-and-such language; and so on. A consequence of the theory is said to be that logic loses its universal validity: logic can only be applied to statements that are homogeneous. However, relations between the layers do claim the attention of the logician. (shrink)

Bestimmend fur die hier getroffene Auswahl der Arbeiten ist Friedrich Wallners Interesse an der Tradition der osterreichischen Philosophie und Wissenschaftstheorie: Dieses richtet sich nicht so sehr auf die historiographische Rekonstruktion, sondern viel mehr auf die theoretisch-philosophische Entwicklung solcher Traditionen als Beitrage zur zeitgenossischen Debatte in der Epistemologie. Der programmatische Titel "Strategien indirekter Rationalitat" gilt richtungweisend fur alle im Buch vorhandenen Gebiete der Forschung und beschreibt eine pluralistische, vielseitig orientierte Perspektive. Diese Perspektive beweist - nach einer der wichtigsten Lehren Wittgensteins (...) - wie sich das philosophische Tun nicht in einer -einseitigen Diat- erschopfen kann, sondern aus mehreren Methoden und -gleichsam verschiedenen Therapien- besteht.". (shrink)

This abridged and revised edition of the original book (Springer-Verlag Vienna, 2001) offers the only comprehensive history and documentation of the Vienna Circle based on new sources with an innovative historiographical approach to the study of science. With reference to previously unpublished archival material and more recent literature, it refutes a number of widespread clichés about "neo-positivism" or "logical positivism". Following some insights on the relation between the history of science and the philosophy of science, the book offers an accessible (...) introduction to the complex subject of "the rise of scientific philosophy" in its socio-cultural background and European philosophical networks till the forced migration in the Anglo-Saxon world. The first part of the book focuses on the origins of Logical Empiricism before World War I and the development of the Vienna Circle in "Red Vienna" (with the "Verein Ernst Mach"), its fate during Austro-Fascism (Schlick's murder 1936) and its final expulsion by National-Socialism beginning with the "Anschluss" in 1938. It analyses the dynamics of the Schlick-Circle in the intellectual context of "late enlightenment" including the minutes of the meetings from 1930 on for the first time published and presents an extensive description of the meetings and international Unity of Science conferences between 1929 and 1941. The chapters introduce the leading philosophers of the Schlick Circle (e.g., Hans Hahn, Otto Neurath, Rudolf Carnap, Philipp Frank, Felix Kaufmann, Edgar Zilsel) and describe the conflicting interaction between Moritz Schlick and Otto Neurath, the long term communication between Moritz Schlick, Friedrich Waismann and Ludwig Wittgenstein, as well as between the Vienna Circle with Heinrich Gomperz and Karl Popper. In addition, Karl Menger's "Mathematical Colloquium" with Kurt Gödel is presented as a parallel movement. The final chapter of this section describes the demise of the Vienna Circle and the forced exodus of scientists and intellectuals from Austria.The second part of the book includes a bio-bibliographical documentation of the Vienna Circle members and for the first time of the assassination of Moritz Schlick in 1936, followed by an appendix comprising an extensive list of sources and literature. (shrink)

La Généalogie de la Morale appartient aux oeuvres de la maturité de Friedrich Nietzsche, puisqu'elle a été publiée en 1887, après Ainsi parlait Zarathoustra. Dans cet essai, le penseur allemand traite de philosophie morale, cherchant à retracer l'origine de nos conceptions morales: selon lui, les valeurs prennent leur source dans la morale chrétienne, qu'il tient pour une morale du ressentiment, une morale d'esclave, dont il faut se libérer: la morale du surhomme sera ainsi une morale de la libération. Le (...) livre est structuré en trois essais, ce qui le rend un peu plus accessible que certains oeuvres écrites en aphorismes et déliées, comme le Gai Savoir. (shrink)