I begin with an explication of "thought experiment". I then clarify the role that intuitions play in thought experiments by addressing two important issues: (1) the informativeness of thought experiments and (2) the legitimacy of the method of thought experiments in philosophy and the natural sciences. I defend a naturalistic account of intuitions that provides a plausible explanation of the informativeness of thought experiments, which, in turn, allows thought experiments to be reconstructed as arguments. I also specify criteria for distinguishing (...) bad "intuition pumps" from legitimate thought experiments. These criteria help us to avoid being seduced by the dangerous suggestive power of misleading intuitions. (shrink)

I begin with an explication of “thought experiment”. I then clarify the role that intuitions play in thought experiments by addressing two important issues: the informativeness of thought experiments and the legitimacy of the method of thought experiments in philosophy and the natural sciences. I defend a naturalistic account of intuitions that provides a plausible explanation of the informativeness of thought experiments, which, in turn, allows thought experiments to be reconstructed as arguments. I also specify criteria for distinguishing bad “intuition (...) pumps” from legitimate thought experiments. These criteria help us to avoid being seduced by the dangerous suggestive power of misleading intuitions. (shrink)

According to truthmaker maximalism, each truth has a truthmaker. Peter Milne has attempted to refute truthmaker maximalism on mere logical grounds via the construction of a self-referential truthmaker sentence M “saying” of itself that it doesn’t have a truthmaker. Milne argues that M turns out to be a true sentence without a truthmaker and thus provides a counterexample to truthmaker maximalism. In this paper, I show that Milne’s refutation of truthmaker maximalism does not succeed. In particular, I argue that the (...) notion of truthmaker meets two structural principles which, if added to a formal language of a theory, are already sufficient to produce a provable contradiction—a contradiction that gives rise to a socalled “Truthmaker paradox”. I also address the question of how to possibly resolve the Truthmaker paradox. I thereby show that the Truthmaker paradox, just as the strengthened Liar paradox, yields a “revenge problem” for paracomplete theories and might lead to triviality for Priest’s dialetheist account LP if the notion of truthmaker is defined as a certain semantic predicate within LP. But regardless of how one tries to cope with the Truthmaker paradox, this paradox is surely interesting in its own right. However, its significance is completely orthogonal to the question of whether truthmaker maximalism is a philosophically sound view. (shrink)

It is argued that neither contextualism nor relativism can provide a satisfying semantics of knowledge ascriptions. According to contextualism, the truth conditions of knowledge ascriptions of the form “S knows that p” vary with the epistemic standards operative in the contexts of utterance. These epistemic standards are determined, in particular, by the speaker’s stakes with regard to p or the consideration of error-possibilities. It is shown that the absolute concept of utterance truth together with a knowledge rule of assertion lead (...) to certain unassertable truths in contextualism and to counterintuitive results with regard to certain cross-context knowledge ascriptions. Although utterance truth is relativized to contexts of assessment in relativist accounts of knowledge, relativism still makes inadequate semantic predictions. In particular, relativism runs into problems in cases where the context of assessment is lower than the context of utterance. It is finally argued that invariantist accounts, according to which the truth conditions of knowledge ascriptions do neither vary with the context of utterance nor the context of assessment, but are determined by objective features given in the situation in which the knowledge claim is made, are better suited for modelling the semantics of knowledge ascriptions. Besides the fact that stakes or the consideration of error-possibilities can have an influence on the belief in a proposition, they have no further bearing on the truth conditions of knowledge ascriptions. (shrink)

Studies on the nature of quotation have become a topic of growing interest among linguists and philosophers of language. What is the function and logical status of quotations? How can an analysis of quotation help to develop a general theory of the semantics-pragmatics interface? This volume is a collection of original papers by leading researchers in the field on such issues and related linguistic and philosophical aspects of quotations.

Keine ausführliche Beschreibung für "Die Wahrheit über den Lügner" verfügbar.

Leben wir in einer simulierten Scheinrealität statt in einer Welt tatsächlich existierender Dinge? Diese These der so genannten Skeptiker lässt sich zwar nicht grundsätzlich widerlegen, erscheint aber ziemlich unwahrscheinlich.Im Kultfilm »Matrix« der Wachowski-Brüder von 1999 arbeitet Thomas A. Anderson tagsüber als Programmierer in einer Softwarefirma. Nachts schlüpft er in die Rolle eines berüchtigten Computerhackers, der unter dem Pseudonym Neo sein Gehalt aufbessert. In Wirklichkeit ist jedoch sein ganzes Leben, wie Neo im Lauf der Geschichte schmerzlich erfahren muss, bloß Teil einer (...) gigantischen computergenerierten Scheinwelt, der »Matrix«. Wohnung, Arbeitsplatz, Freunde, Stadt, Restaurants – sie alle existieren nicht, sondern sind nur Konstrukte einer Softwaresimulation. Man schreibt nicht mehr das Jahr 1999, sondern 2199. Bereits Anfang des 21. Jahrhunderts übernahmen, so der Filmplot, intelligente Maschinen die Macht auf der Erde. Sie halten Menschen in riesigen Anlagen zwecks Energiegewinnung. Deren Körper schwimmen in Kapseln, die mit Nährflüssigkeit gefüllt sind. Über Schläuche und Drähte sind die Menschen an Computer angeschlossen, die ihnen eine perfekte Scheinrealität vorgaukeln. (shrink)

In this paper we survey some main arguments for and against epistemological contextualism. We distinguish and discuss various kinds of contextualism, such as attributer contextualism (the most influential version of which is semantic, conversational, or radical contextualism); indexicalism; proto-contextualism; Wittgensteinian contextualism; subject, inferential, or issue contextualism; epistemic contextualism; and virtue contextualism. Starting with a sketch of Dretske's Relevant Alternatives Theory and Nozick's Tracking Account of Knowledge, we reconstruct the history of various forms of contextualism and the ways contextualists try to (...) handle some notorious epistemological quandaries, especially skepticism and the lottery paradox. Then we outline the most important problems that contextualist theories face, and give overviews of their criticisms and defenses as developed in this issue. (shrink)

Argumentation or reasoning is the act of rendering theses rationally justified or plausible, through appeal to specific premises and the use of logical inferences. The principal forms of logical inference are deductive, inductive, and abductive. The chapter outlines some common argumentative fallacies and discusses important modes of argumentation, such as the use of universalizing arguments, wedge arguments, arguments from authority, and arguments from analogy, arguing through thought experiments and allegories. In the light of the modern global turn, the focus of (...) research in the theory of reasoning and argumentation has shifted to the examination of how fundamental theses can be justified, as well as questions about how to engage in argumentation with people whose worldviews differ markedly from our own. Yet reasoning as a method of rational conviction still plays a decisive role in the comprehension, clarification, and critical questioning of one’s own positions, as well as that of others. (shrink)

As a result of his studies in metalogicEssler became convincedthat an absolute fixed totality of alltruths and a final metalanguage doesnot exist. Taking this result into account,it is shown that the usualabsolute concept of omniscience isuntenable. From this it can be concludedthat definitions of knowledge whichappeal to such a concept of omnisciencelead to serious problems.

Contextualism has become one of the leading paradigms in contemporary epistemology. According to this view, there is no context-independent standard of knowledge, and as a result, all knowledge ascriptions are context-sensitive. Contextualists contend that their account of this analysis allows us to resolve some major epistemological problems such as skeptical paradoxes and the lottery paradox, and that it helps us explain various other linguistic data about knowledge ascriptions. The apparent ease with which contextualism seems to solve numerous epistemological quandaries has (...) inspired the burgeoning interest in it. This comprehensive anthology collects twenty original essays and critical commentaries on different aspects of contextualism, written by leading philosophers on the topic. The editors’ introduction sketches the historical development of the contextualist movement and provides a survey and analysis of its arguments and major positions. (shrink)

The paper focuses on the problem of how to account for the phenomena of disagreement and retraction in disputes over skepticism in a contextualist framework. I will argue that nonindexical versions of contextualism are better suited to account for those phenomena than DeRose’s indexical form of contextualism. Furthermore, I will argue against DeRose’s “single scoreboard” semantics and against his solution of ruling that in a dispute over skepticism, both parties to the conversation are expressing something truth-valueless. At the end, I (...) will briefly address the question of whether DeRose’s contextualism combined with his double-safety account and his rule of sensitivity provide an epistemically satisfying answer to the skeptical challenge. It will be argued that by merely explaining the attractiveness of skeptical arguments, DeRose’s contextualism seems to lack the resources to explain some important epistemic issues, as, for example, the question of what knowledge is and when a true belief turns into knowledge. (shrink)

C.Z. Elgins Argumente zur Unbrauchbarkeit des Wissensbegriffes für epistemologische Untersuchungen und die damit begründete Ersetzung des Wissensdurch den Verstehensbegriff werden anhand einer Analyse der Funktion von Begriffsexplikationen zur Bildung wahrer gerechtfertigter Überzeugungen zurückgewiesen. Die Verwendung grober Begriffskategorien, die mit einer Reduktion der Irrtumsmöglichkeit und somit einer leichten Bildung vieler gerechtfertigter Überzeugungen einhergeht, erweist sich nur vordergründig als epistemischer Vorteil für die Laien, da die so gewonnenen Uberzeugungen kognitiv weniger gehaltvoll sind, Experten aber neben den feineren gewöhnlich auch über die groben (...) Begriffskategorien verfügen, und selbst bei eingestandener Irrtumsmöglichkeit und dem Verzicht auf definitive Überzeugungen der Art „Dieses x ist F" erheblich mehr und Gehaltvolleres wissen als Laien, da auch,,x ist definitiv kein F" oder,,x ist höchstwahrscheinlich F" Wissen ausdrücken. (shrink)

C.Z. Elgins Argumente zur Unbrauchbarkeit des Wissensbegriffes für epistemologische Untersuchungen und die damit begründete Ersetzung des Wissensdurch den Verstehensbegriff werden anhand einer Analyse der Funktion von Begriffsexplikationen zur Bildung wahrer gerechtfertigter Überzeugungen zurückgewiesen. Die Verwendung grober Begriffskategorien, die mit einer Reduktion der Irrtumsmöglichkeit und somit einer leichten Bildung vieler gerechtfertigter Überzeugungen einhergeht, erweist sich nur vordergründig als epistemischer Vorteil für die Laien, da die so gewonnenen Uberzeugungen kognitiv weniger gehaltvoll sind, Experten aber neben den feineren gewöhnlich auch über die groben (...) Begriffskategorien verfügen, und selbst bei eingestandener Irrtumsmöglichkeit und dem Verzicht auf definitive Überzeugungen der Art „Dieses x ist F" erheblich mehr und Gehaltvolleres wissen als Laien, da auch,,x ist definitiv kein F" oder,,x ist höchstwahrscheinlich F" Wissen ausdrücken. (shrink)

C.Z. Elgins Argumente zur Unbrauchbarkeit des Wissensbegriffes für epistemologische Untersuchungen und die damit begründete Ersetzung des Wissensdurch den Verstehensbegriff werden anhand einer Analyse der Funktion von Begriffsexplikationen zur Bildung wahrer gerechtfertigter Überzeugungen zurückgewiesen. Die Verwendung grober Begriffskategorien, die mit einer Reduktion der Irrtumsmöglichkeit und somit einer leichten Bildung vieler gerechtfertigter Überzeugungen einhergeht, erweist sich nur vordergründig als epistemischer Vorteil für die Laien, da die so gewonnenen Uberzeugungen kognitiv weniger gehaltvoll sind, Experten aber neben den feineren gewöhnlich auch über die groben (...) Begriffskategorien verfügen, und selbst bei eingestandener Irrtumsmöglichkeit und dem Verzicht auf definitive Überzeugungen der Art „Dieses x ist F" erheblich mehr und Gehaltvolleres wissen als Laien, da auch,,x ist definitiv kein F" oder,,x ist höchstwahrscheinlich F" Wissen ausdrücken. (shrink)

This chapter gives an overview of important philosophical accounts of knowledge. It starts with Plato’s idea of knowledge as a certain true judgement with an account which stands as the origin of the famous tripartite analysis of knowledge as justified true belief in modern epistemology. Descartes’ concept of knowledge as clear and distinct perception is introduced and shown that it leads to a radical and universal skepticism regarding empirical knowledge of the external world. It is argued that twentieth-century philosophy of (...) cognition and philosophy of science has been more open to accepting concepts of knowledge in which epistemic justification of beliefs is fallible. Furthermore, recent trends in philosophical theories of knowledge, such as naturalistic approaches in epistemology as well as virtue epistemology and social accounts of knowledge, are described and connections to the global turn in cultural sciences are drawn. (shrink)

Since universal language systems are confronted with serious paradoxical consequences, a semantic approach is developed in whichpartial worlds form the ontological basis. This approach shares withsituation semantics the basic idea that statements always refer to certain partial worlds, and it agrees with the extensional and model-theoretic character ofpossible worlds semantics. Within the framework of the partial worlds conception a satisfactory solution to theLiar paradox can be formulated. In particular, one advantage of this approach over those theories that are based on (...) the totality of possible worlds semantics can be found in the fact that the so-called Strengthened Liar problem is avoided. (shrink)