In the preface of the Philosophical Investigations, Wittgenstein says that his “most fruitful ideas” are due to the stimulus of Sraffa's criticism, but Sraffa is not mentioned anywhere else in the book. It remains a puzzle in the literature how and why Sraffa influenced Wittgenstein. This paper presents a solution to this puzzle. Sraffa's criticism led Wittgenstein away from the calculus conception of language of the Big Typescript (arguably, an adaptation of the calculus of the Tractatus), and towards the “anthropological (...) view,” which structures both the opening sections of the Philosophical Investigations and Wittgenstein's later philosophy of mathematics. (shrink)

The intention here is that of giving a formal underpinning to the idea of ‘meaning-is-use’ which, even if based on proofs, it is rather different from proof-theoretic semantics as in the Dummett–Prawitz tradition. Instead, it is based on the idea that the meaning of logical constants are given by the explanation of immediate consequences, which in formalistic terms means the effect of elimination rules on the result of introduction rules, i.e. the so-called reduction rules. For that we suggest an extension (...) to the Curry– Howard interpretation which draws on the idea of labelled deduction, and brings back Frege’s device of variable-abstraction to operate on the labels (i.e., proof-terms) alongside formulas of predicate logic. (shrink)

In this paper, I examine the grammatical nature of Wittgenstein's private language argument (PLA). On my interpretation, the definition of private language implies that the private speaker has no natural expressions for his sensations. This in turn implies that he has no criterion of correctness for using his sensation‐words. This then implies, together with the grammatical rule that a word is senseless without a criterion of correctness for its use, that private sensation‐words are senseless, and hence also that private language (...) is senseless. So in my analysis, Wittgenstein succeeds in dissolving the problem of private language through a grammatical investigation, and therefore, his treatment of private language is consistent with his metaphilosophy. I further explain that Wittgenstein provides a diagnosis of the error of the philosopher who thinks that private language is possible and that he also offers a therapy consisting of analogies or objects of comparison. I also make a comparison with previous studies on the PLA and discuss a number of novelties in my interpretation. (shrink)

As a celebration of theTractatus100th anniversary it might be worth revisiting its relation to the later writings. From the former to the latter, David Pears recalls that “everyone is aware of the holistic character of Wittgenstein’s later philosophy, but it is not so well known that it was already beginning to establish itself in theTractatus” (The False Prison, 1987). From the latter to the former, Stephen Hilmy’s (The Later Wittgenstein, 1987) extensive study of theNachlasshas helped removing classical misconceptions such as (...) Hintikka’s claim that “Wittgenstein in thePhilosophical Investigationsalmost completely gave up the calculus analogy.” Hilmy points out that even in theInvestigationsone finds the use of the calculus/game paradigm to the understanding of language, such as “in operating with the word” (Part I, §559) and “it plays a different part in the calculus”. Hilmy also quotes from a late (1946) unpublished manuscript (MS 130) “this sentence has use in the calculus of language”, which seems to be compatible with “asking whether and how a proposition can be verified is only a particular way of asking ‘How do you mean?’” Central in this back and forth there is an aspect which seems to deserve attention in the discussion of a semantics for the language of mathematics which might be based on (normalisation of) proofs and/or Hintikka/Lorenzen game-dialogue: the explication of consequences. Such a discussion is substantially supported by the use of the open and searchableThe Wittgenstein Archives at the University of Bergen. These findings are framed within the discussion of the meaning of logical constants in the context of natural deduction style rules of inference. (shrink)

A significant discrepancy in Wittgenstein's studies is whether Philosophical Investigations contains any trace of positive philosophy, notwithstanding the author's apparent anti-theoretic position. This study argues that the so-called ‘Chapter on philosophy’ in the Investigations §§89–133 contains negative and positive vocabulary and the use of various voices through which Wittgenstein employs his primary method of language-games, thus providing a surveyable understanding of several philosophical concepts, such as knowledge and time. His positive philosophy aims to reorient our attention from understanding the theories (...) on these concepts to understanding the concepts themselves, regardless of any theorisation. (shrink)

Este artigo investiga alguns usos da metáfora da linguagem como cálculo em Wittgenstein. A metáfora do cálculo emerge, nos anos 30, numa interlocução com o referencialista, e é ali instrumental na recondução do olhar filosófico para os usos efetivos do simbolismo linguístico. Contudo, foi levada longe demais, ao sugerir uma imagem da linguagem composta apenas de inferências à maneira dos sistemas de regras fechados. Isto embargaria certa expansão pragmática do contexto criterial da análise conceitual. Mas a aplicabilidade do símile do (...) cálculo não é invalidada. A metáfora será reativada em manuscritos posteriores, sempre e quando puder servir aos mesmos propósitos do período intermediário, à medida que o ambiente dialógico convoque novas vozes dogmaticamente referencialistas. Ainda assim, é nos manuscritos intermediários que melhor se esclarece o seu funcionamento. Tal movimento exemplifica, por fim, um método filosófico que não procede por meio da superação de problemas à maneira científica. (shrink)

According to the received view the later Wittgenstein subscribed to the thesis that speaking a language requires being guided by rules (thesis RG). In this paper we question the received view. On its most intuitive reading, we argue, (RG) is very much at odds with central tenets of the later Wittgenstein. Giving up on this reading, however, threatens to deprive the notion of rule-following of any real substance. Consequently, the rule-following considerations cannot charitably be read as a deep and subtle (...) defense of (RG) against the threat of paradox, as proponents of the received view are wont to do. Instead, we argue, the rule-following considerations provide Wittgenstein's deep and subtle reasons for rejecting the very idea that speaking a language involves rule-guidance. Although Wittgenstein subscribed to (RG) during his middle period writings, his later remarks on rules, far from being a clarification and elaboration of his earlier views, are directed against the claim of the middle period that speaking a language is an essentially rule-guided activity. (shrink)

While Wittgenstein wrote unconventionally and denied that he was advancing philosophical theses, most of his interpreters have attributed conventional philosophical theses to him. But the best recent interpretations have taken the form of his writing and his distinctive way of doing philosophy seriously. The 1980s have also seen the emergence of a body of work on Wittgenstein that makes extensive use of the unpublished Wittgenstein papers. This work on Wittgenstein's method and his way of writing are the main themes of (...) this literature review.Section 1 surveys Wittgenstein's conception of philosophical method and its reception. Section 2 is a review of recent work on rule-following and the methodological issues it raises. Section 3 concerns research on the WittgensteinNachlass and its implications for the interpretation of his philosophy. (shrink)

ABSTRACTWittgenstein’s remark that one cannot follow a rule only once has generated two puzzles: how can everyone accept it to be true? and why does Wittgenstein advance it? These two puzzles have tormented commentators for decades. In this paper I put forward a new interpretation and explain away the two puzzles. I shall show that Wittgenstein’s remark is plain truth and that his motivation behind making it is to dissolve the picture theory of meaning propounded in the Tractatus. This interpretation (...) also helps us to see that Wittgenstein’s other remark, that to follow a rule is a custom, is also a grammatical one. (shrink)

In trying to make clear whether understanding is a mental state Wittgenstein asks a series of questions about the timing and duration of understanding. These questions are awkward, and they have posed a great challenge for commentators. In this paper I review the interpretations by Mole and by Baker and Hacker, and point out their problems. I then offer a new interpretation which shows (1) that a “mental state” in this context means a state of consciousness, (2) that Wittgenstein's questions (...) are intended to elicit the grammars of the words “understand” and a “state of consciousness”, (3) that, in this way, he clearly shows that understanding is not a state of consciousness and (4) that he also provides a therapy to dissolve the problem. (shrink)

No verão de 1932, Wittgenstein alegou que o artigo recentemente publicado porCarnap “Linguagem Física como Linguagem Universal da Ciência” fez uso extensivo e semmenções das idéias do próprio Wittgenstein. Em uma carta a Schlick, ele se queixou que“em breve estaria em uma situação na qual seu próprio trabalho seria considerado meramentecomo uma versão requentada ou plágio do de Carnap”. Neste artigo, examino arelação entre o artigo de Carnap, posteriormente reimpresso como A Unidade da Ciência, eo tratamento dispensado por Wittgenstein, nos (...) primeiros sete capítulos das ObservaçõesFilosóficas e outros escritos entre 1929-1932, a assuntos relacionados. (shrink)

Tractatus Logico-Philosophicus (TLP) turns hundred years of its publication in the year 2021. The book has received several interpretations during this period of hundred years. However, in the last three decades, the interpretations of TLP have taken a very tenacious position with regard to the debates among scholars concerning whether there is any metaphysical significance in the text. The debates primarily offshoot in the rise of anti-metaphysical or often known as resolute reading that challenges the standard or metaphysical reading. The (...) present paper, however, goes beyond this debate between the resolute and standard reading of TLP. The paper aims at addressing various types of metaphysical reading(s) that has not been perhaps the centre of discussion because the resolute reading takes on only standard reading. Thus, the present paper attempts to show the variety of metaphysical interpretations of the text in some of the recent literatures. (shrink)