Frege: Philosophy of Language

This paper defends an interpretation of Gottlob Frege’s views on the structure of thought. I argue that Frege did not think that a thought has a unique decomposition into its component senses, but rather the same thought can be decomposed into senses in multiple, distinct ways. These multiple decompositions will often have distinct logical forms. I also argue against Michael Dummett and others that Frege was committed to the sense of a predicate being a function from the sense of a (...) name (or names) to a complete thought. I defend my Frege interpretation against a puzzle often discussed in the Frege literature; namely, that the Multiple Decompositions Thesis is incompatible with Frege’s stated view that a thought is built up out of its component senses as parts. I provide textual evidence and argument that Frege thought of the part/whole relation in such a way that a whole can be analyzed into (or built up out of) parts in multiple, distinct ways, thus dissolving the puzzle. I conclude with discussion of every sort of example of multiple decompositions that can be found in Frege's work. (shrink)

We propose the concepts of philomatics and psychomatics as hybrid combinations of philosophy and psychology with mathematics. We explain four motivations for this combination which are fulfilling the desire of analytical philosophy, proposing science of philosophy, justifying mathematical algorithms by philosophy, and abstraction in both philosophy and mathematics. We enumerate various examples for philomatics and psychomatics, some of which are explained in more depth. The first example is the analysis of relation between the context principle, semantic holism, and the usage (...) theory of meaning with the attention mechanism in mathematics. The other example is on the relations of Plato's theory of forms in philosophy with the holographic principle in string theory, object-oriented programming, and machine learning. Finally, the relation between Wittgenstein's family resemblance and clustering in mathematics is explained. This paper opens the door of research for combining philosophy and psychology with mathematics. (shrink)

The debate over whether the basic principles of Frege's philosophy of semantics committed him to the hierarchy of indirect senses is adjudicated. It is demonstrated by means of a simple device that Frege was indeed committed to the hierarchy.

Frege argued for the force-content distinction not only by appealing to the logical and fictional contexts which are most closely associated with the “Frege point", but also based on the fact that an affirmative answer to a yes-no question constitutes an assertion. Supposedly this is only intelligible if the question contains a forceless thought or proposition which an affirmative answer then asserts. Against this I argue that this fact more readily supports the view that questions operate on assertions and other (...) forceful acts themselves. Force is neither added to propositions as on the traditional view, nor is it cancelled as has recently been proposed. Rather higher-level acts such as questioning, but also e.g. conditionalizing, embed and present assertoric or directive acts that are forceful and committal, while suspending commitment to them. The Frege point confounds different varieties of force and the question whether something is merely presented for consideration with the question what is so presented. Force is representational: through assertoric and directive force indicators subjects non-conceptually present positions of theoretical or practical knowledge, while interrogative acts indicate positions of wondering which strive for such knowledge. (shrink)

In §8 of hisBegriffsschrift(1879), Gottlob Frege discusses issues related to identity. Frege begins his most famous essay,“On Sense and Denotation”(1892),published 13 years later, by criticizing the view advocated in §8. He returns to theseissues in the concluding paragraph. Controversies continue over these importantpassages. We offer an interpretation and discuss some alternatives. We defend thatin theBegriffsschrift,Frege does not hold that identity is a relation between signs.§8 of theBegriffsschriftis motivated by the conflict between two differentcriteria for sameness of conceptual content of sentences. (...) To resolve that conflict,Frege introduces‘≡’in §8 and, thus, circumstances with names as constituents. Tothe same end, in“On Sense and Denotation,”Frege introduces senses andThoughts and abandons both ‘≡’ and circumstances. He solves what we call theCo-instantiation problem, and disregards, but does not solve, the Name problem. (shrink)

This paper argues against the claim that Frege is committed to an infinite hierarchy of senses. Carnap and Kripke, along with many others, argue the contrary; I expose where all such arguments go astray. Invariably these arguments assume (without citation) that Frege holds that sense and reference are always distinct. This is the fulcrum upon which the hierarchy is hoisted. The counter to this assumption is based on two important but neglected passages. The locution ‘indirect sense’ has no ontological significance (...) for Frege. It was just a ‘short expression’ (his term) to indicate that the customary relation between sign, sense, and reference is suspended in what he called the exception case of indirect context. Once the hierarchy is abandoned, the alleged problem of just what indirect sense is, as well as questions as to why Frege said so little about it and why he did not examine iterative indirect contexts are resolved. Of course, with no hierarchy, Davidson’s “unlearnability argument” turns out to be a non-starter. Some objections to my interpretation are considered and answered. Additionally, comparisons to Dummett’s one-level view of sense, which is similar to mine are made, as well as to some two-level views (Parsons and Skiba). (shrink)

Frege’s Begriffsschrift account of modality involves both a negative and a positive claim. The negative claim is that modal notions are logically insignificant; the positive claim is that modals convey a ‘hint’ (Wink) as to the speaker’s grounds for judgement. This paper is about Frege’s positive claim, which has not received much attention. I explain in detail the Fregean notion of hinting and how to distinguish hints from conceptual contents, and I argue that Frege’s two-dimensional account of modal talk is (...) supported by various observations. However, it also seems clear that Frege’s account cannot be the whole story. (shrink)

This paper is partly exegetical, partly systematic. I argue that Frege's account of what he called “colouring” contains some important insights on how communication is related to mental states such as mental images or emotions. I also show that the Fregean perspective is supported by current research in psycholinguistics and that a full understanding of some linguistic phenomena that scholars have accounted for in terms of either semantics or pragmatics need involve psycholinguistic elements.

This paper investigates the connection between two recent trends in philosophy: higher-orderism and conceptual engineering. Higher-orderists use higher-order quantifiers (in particular quantifiers binding variables that occupy the syntactic positions of predicates) to express certain key metaphysical doctrines, such as the claim that there are properties. I argue that, on a natural construal, the higher-orderist approach involves an engineering project concerning, among others, the concept of existence. I distinguish between a modest construal of this project, on which it aims at engineering (...) higher-order analogues of the familiar notion of first-order existence, and an ambitious construal, on which it additionally aims at engineering a broadened notion of existence that subsumes first-order and higher-order existence. After identifying a substantial problem for the ambitious project, I investigate a possible response which is based on adopting a cumulative type theory as the background higher-order logic. While effective against the problem at hand, this strategy turns out to undermine a major reason to embrace higher-orderism in the first place, namely the idea that higher-orderism dissolves a range of otherwise intractable debates in metaphysics. Higher-orderists are therefore best advised to pursue their engineering project on the modest variant and against the background of standard type theory. (shrink)

Uncovering an aspect of Gottlob Frege's linguistic theorizing that has until now received little attention, this volume offers the first detailed exposition of Frege's pragmatics. Thorsten Sander explores his views on colouring, side-thoughts, presuppositions, indexicals and illocutionary force and closely relates these to current research in philosophy of language and linguistics. -/- Throughout his career, Frege was concerned with various secondary aspects of meaning. He claims, for instance, that the two words 'dog' and 'cur' differ not in what he calls (...) sense, but merely in colouring. By contrast, the difference between 'morning star' and 'evening star' is supposed to be a matter of sense. How exactly does sense differ from colouring? Frege also claims that by using a proper name one presupposes the existence of its bearer and that our utterances are frequently associated with side-thoughts. What exactly does he mean by these terms, and wherein lies the difference between these phenomena. Frege's Pragmatics answers questions such as these, providing a fresh perspective on Frege's account of various pragmatic aspects of language. In this first book-length treatment, Sander makes the case that Frege's groundbreaking ideas are an essential part of his overall philosophical enterprise. (shrink)

Dummett, Hanks, Künne, and Bobzien have all stated or implied that when Frege wrote ‘Über Sinn und Bedeutung’, Frege believed that the sense of a sentence-question was not a thought. I present the passage of ‘Über Sinn und Bedeutung’ which is relevant to the evaluation of that proposition. I then present and evaluate an argument which I assume to be the best argument based on that passage for that proposition. I argue that the argument is likely to be unsound. I (...) also address the question whether Frege believed that sentence-questions could be true or false and discuss what Frege did say and what he should have said about logical-alternative questions. (shrink)

In both the paper "Revisability and Conceptual Change in 'Two Dogmas of Empiricism'" and in Constructing the World, David Chalmers has argued against W.V.O. Quine's claim that there are no 'analytic' sentences. I argue here that Chalmers's argument does not advance this debate.

Modes of Presentation analyses a collection of problems, known as 'Frege's puzzle', resulting from how thinkers and speakers have a limited perspective on reference in thought and language. Heck argues that these puzzles have much to teach us both about the foundations of cognition and the nature of linguistic communication.

Frege maintains that there are not two distinct acts, assertion and denial; rather, denying p is one and the same as asserting not-p. Wittgenstein appears not to recognise this identity in Frege, attributing to him the contrary view that a proposition may have one of two verbs, "is true" or "is false". This paper explains Wittgenstein’s attribution as a consequence of Frege’s treatment of content as theoretically prior to the act of judgment. Where content is prior to judgment, the denial (...) of p—what is rejected in asserting p—is distinct from the assertion of not-p. Wittgenstein’s own embrace of Frege’s identity is then considered, an embrace explained in part by his repudiation of Frege’s theoretical order. (shrink)

The study concerns a possible private language in the philosophy of Gottlob Frege, particularly in his scarce investigation of indexicals such as ‘I’ and ‘now’. The indexicals may be seen as private from the late-Wittgensteinian perspective because their sense (Sinn) cannot be repeated outside of a specific linguistic context of the expression. The study examines whether these indexicals presuppose a private language. If Frege’s philosophy contains such privateness (for which only insufficient evidence can be found), it would be peculiar since (...) a major part of his work implies that all thoughts are objective and publicly communicable. However, the privateness in Frege’s remarks rather differs from Wittgenstein’s, for the indexical’s sense should be principally expressible at any time. (shrink)

In several passages, Frege suggests that successful communication requires that speaker and audience understand the uttered words and sentences to have the same sense. On the other hand, Frege concedes that, in many ordinary cases, variation in sense is tolerable. In a recent article in this journal, Michaelson and Textor (2023) offer a new interpretation of Frege on the tolerability of sense variation according to which variation in sense is tolerable when the conversation aims at joint action, but not when (...) the conversation aims at joint thought. We maintain, contra Michaelson and Textor, that whether sense variation is tolerable does not depend on the conversational purpose, whether it be theoretical or practical. Rather, whether sense variation is tolerable depends instead on the conversational background. This picture offers what we take to be a more plausible reconstruction of Frege’s own view. (shrink)

Boethius identifies God both with esse ipsum and esse suum. This paper explains Boethius's general semantic use of "esse" and the application of this use to God. It questions the helpfulness of attributing to Boethius "existence" words and argues for a more robust role in Boethius’s thought for Hilary of Poitiers’s and Augustine’s exegeses of Exodus 3:14-15 than has been acknowledged in recent scholarship.

In this paper we give a detailed comparison of the key elements of Frege’s formal language of thought and apparently similar views in Stoic formal logic. That is, we compare their views on the following topics: connectives, negation, simple sentences, propositional content, predicates and their incompleteness, and quantifications. We show that in most of these cases the similarities between Frege’s views and the Stoic views are only superficial. Frege’s views are far more systematic, better developed and can in no case (...) directly or fully be traced back to Stoic ideas. Furthermore, we show that Prantl, pace Bobzien 2021, is in most of these cases not a reliable source with respect to Stoic logic and that it is very unlikely that Frege’s views on logic were influenced by Prantl’s interpretation of Stoic formal logic. (shrink)

Spoken sentences have parts. Therefore they take time to speak. For instance, when you say, “Socrates is running”, you begin by uttering the subject term ("Socrates"), before carrying on to the predicate. But are the corresponding predications in thought also composite? And are such thoughts extended across time, like their spoken counterparts? Peter Abelard gave an affirmative response to both questions. Alberic of Paris denied the first and, as a corollary, denied the second. Here, I first set out Abelard’s account. (...) I then present a series of arguments against Abelard, reconstructed from (sometimes fragmentary) manuscripts associated with Alberic’s school. I conclude with an observation about present philosophy of language: this twelfth-century debate points to some undefended (and largely unstated) assumptions common to our latest thinking about propositions. I highlight this by presenting recent accounts of two philosophers with radically different outlooks: Jeffrey King and Peter Hanks. Both their accounts take many of the same things for granted, as the Alberican criticisms make plain. (shrink)

The present article reviews the Polish-language edition of Gottlob Frege’s scientific correspondence. In the article, I discuss the material hitherto unpublished in Polish in relation to the remainder of Frege’s works. First of all, I inquire into the role and nature of definitions. Then, I consider Frege’s recognition criteria for sameness of thoughts. In the article’s third part, I study letters devoted to the principle of semantic compositionality, while in the fourth part I discuss Frege’s remarks concerning the context principle.

Proponemos una interpretación novedosa de la(s) teoría(s) de Frege en Begriffsschrift (1879/2016) y “Über Sinn und Bedeutung” (1892a/2016). Prestamos especial atención al papel de las circunstancias como contenido conceptual de las oraciones en Begriffsschrift y argumentamos que ninguna razón de las que ofrece Frege en “Über Sinn und Bedeutung” para establecer los valores de verdad como referencia de las oraciones justifica su eliminación. Este artículo no es tanto de carácter histórico como de reconstrucción conceptual. Buscamos en Frege las raíces de (...) una concepción pluralista del contenido de la oración (Perry, 2001/2012; Korta & Perry, 2011). (shrink)

Gottlob Frege (1848–1925), begründete nicht nur die moderne Logik, sondern auch die Sprachphilosophie. Er erweiterte die funktionale Analyse der Sätze zu einer Systematik des gesamten sprachlichen Bedeutens und Ausdrucks, indem er zwischen den Zeichen selbst, dem Sinn und der Bedeutung der Zeichen unterschied. Dieser Band versammelt Kommentare und Analysen zu den drei klassischen Aufsätzen Funktion und Begriff (1891), Über Sinn und Bedeutung und Über Begriff und Gegenstand (beide 1892). Er verschafft dadurch einen fundierten Überblick sowohl zu den Kernproblemen wie auch (...) den Hintergründen von Freges bis heute kontrovers diskutiertem Ansatz. Dabei wird die enge Verzahntheit zwischen dem logischen Hintergrund und Freges logizistischem Anliegen einerseits und den Vorschlägen zur Deutung einer ganzen Reihe von sprachlichen Erscheinungen erkennbar. Dazu gehören Fragen nach dem Wesen von Begriff und Gegenstand bzw. Prädikaten und Eigennamen als den Grundelementen jeder Aussage überhaupt – aber auch Erläuterungen zu indirekter Rede und fiktionalem Diskurs. Der vorliegende Band bietet dazu informierte Kommentare und Analysen. (shrink)

This work addresses the critical discussion featured in the contemporary literature about two well-known paradoxes belonging to different philosophical traditions, namely Frege’s puzzling claim that “the concept horse is not a concept” and Gongsun Long’s “white horse is not horse”. We first present the source of Frege’s paradox and its different interpretations, which span from plain rejection to critical analysis, to conclude with a more general view of the role of philosophy as a fight against the misunderstandings that come from (...) the different uses of language (a point later developed by the “second” Wittgenstein). We then provide an overview of the ongoing discussions related to the Bai Ma Lun paradox, and we show that its major interpretations include—as in the case of Frege’s paradox—dismissive accounts that regard it as either useless or wrong, as well as attempts to interpret and repair the argument. Resting on our reading of Frege’s paradox as an example of the inescapability of language misunderstandings, we advance a similar line of interpretation for the paradox in the Bai Ma Lun: both the paradoxes, we suggest, can be regarded as different manifestations of similar concerns about language, and specifically about the difficulty of referring to concepts via language. (shrink)

E.E.C. Jones’s early logical writings have recently been rescued from obscurity and it has been claimed that, in her works dating from the 1890s, she anticipated Frege’s distinction between sense and reference. This claim is challenged on the ground that it is based on a common but inadequate reading of Frege, which runs together his concept/object and sense/reference distinctions. It is admitted that a case can be made for Jones having anticipated something very like Frege’s analysis of categorical propositions, and (...) that she offered a sound rebuttal of Russell’s objection to Frege’s account of the informativeness of identity statements. However, these significant achievements should not be misrepresented as an anticipation of Frege on sense and reference, a claim that encourages a defective reading of both philosophers. (shrink)

In this paper, I defend an inferentialist account of proper names. After a review of how the account works in the framework of Robert Brandom’s inferentialism, I focus on two objections. The first one, from a Russellian view, is that the inferentialist account will eventually collapse into a Russellian description theory of proper names. The second, from a Millian view, is that the account fails due to the fact that proper names in fact have no conceptual content, as they are (...) merely meaningless tags. I conclude by recapitulating the advantages of the inferentialist account of proper names. (shrink)

Frege famously claimed that variations in the sense of a proper name can sometimes be ‘tolerated’. In this paper, we offer a novel explanation of this puzzling claim. Frege, we argue, follows Trendelenburg in holding that we think in language—sometimes individually and sometimes together. Variations in sense can be tolerated in just those cases where we are using language to coordinate our actions but are not engaged in thinking together about an issue.

In this article, I first analyze and assess the epistemological and semantic status of canonical value-range equations in the formal language of Frege’s Grundgesetze der Arithmetik. I subsequently scrutinize the relation between (a) his informal, metalinguistic stipulation in Grundgesetze I, Section 3, and (b) its formal counterpart, which is Basic Law V. One point I argue for is that the stipulation in Section 3 was designed not only to fix the references of value-range names, but that it was probably also (...) intended to play a regulative role with an eye to Basic Law V. I further intend to shed new light on the status of Frege’s identification of the truth-values with their unit classes in Grundgesetze I, Section 10 and determine its place and importance in his overall logicist project. In a subsequent section, I first discuss the hypothetical extendability of the logical system of Grundgesetze. In what follows, I analyze the incompleteness of that system—were it not inconsistent and hence trivially complete—by focusing on the role of the definite description operator and the axiom governing it (= Basic Law VI) as well as on the role of the application operator. The latter is defined by means of the former. I further comment on the redundancy of an axiom that could be designed to supplement Basic Law VI by incorporating the second clause of Frege’s two-part elucidation of the description operator. I argue that although it seems likely that Basic Law VI could have been shown to be dispensable in Grundgesetze, Frege would probably have been reluctant to dispense with it, despite his commitment to axiomatic parsimony. In my view, the reason is that he considers it essential that every primitive function-name of his formal language be governed and grounded by a basic law that is tailored to the nature and the role of the primitive name occurring at a key point in the law. Toward the end of the article, I propose solutions to two problems with Frege’s use of “=” in the concept-script sentences that result from his definitions involving the replacement of the double stroke of definition with the judgment-stroke. I conclude the article with a summary of the main results that I have achieved. (shrink)

Raimo Tuomela’s most important contribution to the philosophy of collective intentionality was his development of the notion of the we-mode. In my chapter I extend the notion of we-mode to that of role-mode, the mode in which individual and collective subjects feel, think and act as occupants of roles within groups and institutional structures. I focus on how being in role-mode is manifest in the minds of subjects and on the following points. First, I argue that both we-mode and role-mode (...) are best thought of as further modifications of I-consciousness, respectively we-consciousness. Second, role-mode is further characterized by the fact that subjects will take positions as role occupants that they won’t take as mere individuals, or we-mode group members, or in other roles. Third, such divergences are only possible against a background of agreements between positions taken in different modes. Fourth, such divergences are also grounded in decision making procedures and the accessibility and admissibility of sources of evidence. Fifth, role-mode goes all the way down, that is, it is also manifest in how subjects feel, move and comport themselves when they occupy their roles. To put it into fashionable jargon, it is embodied and enacted. (shrink)

카플란은 고유 이름과 지표사 같은 단칭어들을 분석하면서 프레게의 뜻 이론이 한계를 갖는다고 비판하였다. 그러나 필자는 두 가지 점에서 프레게가 카플란의 비판을 피할 수 있다고 주장한다. 먼저 카플란은 단칭어들이 대상을 직접 지시한다고 주장할 뿐, 프레게가 정보를 제공하는 동일성 진술을 설명할 목적으로 뜻 이론을 도입한 이유는 무시한다. 카플란은 또한 독창적인 지표사 분석을 통해 프레게식의 뜻 이론이 지표사를 포함하는 문장을 취급할 수 없다고 주장하지만, 필자는 프레게의 뜻 이론과 필자가 제안한 확장된 맥락의 원리에 의해 지표사를 포함하는 문장을 취급할 수 있다고 주장한다. 이를 보이기 위해 (...) 먼저 프레게의 뜻 이론과 이 이론을 기반으로 하는 가능 세계 의미론을 살핀 다음 프레게에 대한 카플란의 비판이 어떤 형태로 진행되는지 구체적으로 살펴보겠다. Kaplan criticized Frege’s theory of sense as having limitations while analyzing singular terms such as proper names and indexicals. However, I argue that Frege can avoid Kaplan’s criticism in two ways. First, Kaplan only claims that singular words refer directly to objects, but ignores the reason why Frege introduced the theory of meaning for the purpose of explaining informative identity statements. Kaplan also argues, through an original analysis of indexicals, that Frege’s theory of meaning cannot handle sentences containing indexicals. I argue that Frege’s own theory of meaning and the expended principle of context proposed in this paper can handle sentences containing indexicals. To show this, we will first look at Frege’s theory of meaning and possible world semantics based on this theory, and then look specifically at the form in which Kaplan’s criticism of Frege progresses. (shrink)

Bozickovic’s The Indexical Point of View is a richly informative and solid philosophical work about the problem of cognitive significance involving indexical thoughts and expressions. Although I tend to agree with most of what is said in the book, here I will make some comments on two minor correlated points regarding Bozickovic’s Fregean account of indirect speech reports (or ISRs). After presenting some of the author's ideas about reports, I will claim that the tracking and updating involved in ISRs is (...) of a complex kind that requires attention to the role played by speech reporters and their audiences. Following that, I will hold that a general theory of correct ISR strictly in Fregean terms (as Bozickovic’s) fails to account for that - at least directly. (shrink)

The aim of this article is to examine Frege’s view of the context principle in his mature philosophical doctrine. Here, the author argues that the context principle is embodied in the contextual explanation of value-ranges presented in Basic Laws of Arithmetic. The contextual explanation of value-ranges plays essentially the same role as the context principle in The Foundations of Arithmetic. It is supposed to show how a reference to natural numbers is possible. Moreover, the author argues against the view that (...) the context principle should be separated from the recarving thesis. This aspect of Frege’s view leads the author to the rejection of the purely referential view of the context principle, which is fairly widely accepted in the current literature. (shrink)

In the paper, I propose a novel approach to Frege’s view on the principle of compositionality, its relation to the propositional holism and the formation of concepts. The main idea is to distinguish three stages of constructing a logically perfect language. At the first stage, only a sentence as a whole expresses a Thought. It is impossible to assign meaning to less complex units. This is the stage of an ordinary language. The second phase concerns the proper level of construction (...) of a logically perfect language. We are forced to discriminate syntactic and semantic parts of sentences to account for the inference relations. We can distinguish senses and references of parts of sentences. Furthermore, it is possible here to choose between different ways of analysing the given Thought. Finally, at the third stage, every expression of the language has an unambiguous sense and this sense determines a unique reference. The logically perfect language is ready. We may view Thoughts as composed from primitive elements. Moreover, the senses of parts of a sentence correspond to the parts of a Thought, so that the structure of the sentence serves as the image of the structure of the Thought. The principle of compositionality is met and we can discern how understanding of the infinite numbers of Thoughts is possible and how languages are learnable. The main advantage of the presented view is that it allows accommodating some aspects of Frege’s philosophy that are often seen as mutually incompatible. Furthermore, I submit extensive textual data in favour of the discussed views and conceptions. (shrink)

In this paper I want to show that two proposals to determine Frege’s notion of a mark (Merkmal) of concepts that are made in the relevant literature face some serious interpretative and systematic problems. The main problem of both conceptions is that they cannot be properly applied to those explicit examples of complex concepts that are given in Frege’s works. The first of these conceptions interprets marks as analytic components of a concept, the second as defining parts of a concept. (...) I will show that only the second conception can be modified in a meaningful way such that we get a conception of marks as result that fits with Frege’s general characterizations and examples. (shrink)

The main question of this article is that what are the important differences or similarities between Aristotle's and Frege's analysis of the categorical proposition? Based on the famous view, Aristotle analyzes the categorical proposition into three components: Subject, Predicate and Relation; while Frege analyzes the categorical proposition into two components of Variable and Function, and therefore; these two analyses are completely different and there is no similarity between them. In the other article, I have argued that in the Aristotle's viewpoint, (...) in the logical analysis of the categorical proposition, against its linguistic analysis, it is divided into two main components of subject and predicate. At this article, I have shown that by accepting of this analysis and based on it, it becomes clear that: firstly, there are important similarities between these two analyses: 1) both are two-part analyses 2) Aristotle, like Frege, considers «to be attributed to something else» to be the essential feature of the predicate part; Secondly, there are important differences between them: 1) Aristotle considers «to be attributed to something else» to be merely the essential property of the Role of Predicate, but Frege considers it to be also the essential property of general concepts that replaces in this role, and therefore 2) Frege, against Aristotle, maintains that general concepts cannot be the subject of propositions. This viewpoint of Frege is based on the «Fundamental distinction between Object and Concept». Therefore the root of the differences between the two analyses should be sought in this assertion.. (shrink)

Frege believes that the content of declarative sentences divides into a thought and its ‘colouring’, perhaps combined with assertoric force. He further thinks it is important to separate the thought from its colouring. To do this, a criterion which determines sameness of sense between sentences must be deployed. But Frege provides three criteria for this task, each of which adjudicate on different grounds. In this article, rather than expand on criticisms levelled at two of the criteria offered, the author focuses (...) on the most promising candidate. As it stands, this criterion has problems, but not insuperable ones. He suggests an adjusted criterion that relies on the epistemic notion of triviality. He recommends this criterion as both harmonious with Frege’s broader thought and preferable to alternatives offered. The moral is that Frege individuates thoughts by deploying an epistemic concept, and this is the only suitable way for him to do so. (shrink)

Commentators regularly attribute to Frege realist, idealist, and quietist responses to metaphysical questions concerning the abstract objects he calls ‘thoughts’. But despite decades of effort, the evidence offered on behalf of these attributions remains unconvincing. I argue that Frege deliberately avoids commitment to any of these positions, as part of a metaphysical separatist policy motivated by the fact that logic is epistemologically autonomous from metaphysics. Frege’s views and arguments prove relevant to current attempts to argue for epistemological autonomy, particularly that (...) of ethics. (shrink)

In a letter of 1891, Frege drew a diagram to illustrate his logical ontology. We observe that it omits features that play an important role in his thought on the matter, propose an extension of the diagram to include them, and compare with a diagram of the ontology of current first-order logic.

Number words seemingly function both as adjectives attributing cardinality properties to collections, as in Frege’s ‘Jupiter has four moons’, and as names referring to numbers, as in Frege’s ‘The number of Jupiter’s moons is four’. This leads to what Thomas Hofweber calls Frege’s Other Puzzle: How can number words function as modifiers and as singular terms if neither adjectives nor names can serve multiple semantic functions? Whereas most philosophers deny that one of these uses is genuine, we instead argue that (...) number words, like many related expressions, are polymorphic, having multiple uses whose meanings are systematically related via type shifting. (shrink)

In this essay I consider Kaplan’s challenge to Frege’s so-called dictum: “Logic (and perhaps even truth) is immune to epithetical color”. I show that if it is to challenge anything, it rather challenges the view (attributable to Frege) that logic is immune to pejorative colour. This granted, I show that Kaplan’s inference-based challenge can be set even assuming that the pejorative doesn’t make any non-trivial truth-conditional (descriptive) contribution. This goes against the general tendency to consider the truth-conditionally inert logically irrelevant. (...) But I take it that Kaplan is right and take his examples to show that truth-conditional inertness need not entail inferential inertness. I end up assessing the Kaplan-Frege “debate” as giving edge to the former to the extent that clarity is achieved through Kaplanian inferences on what should be considered part of the explanandum. (shrink)

El presente artículo tiene como principal objetivo introducir al lector algunos de los conceptos fundamentales de la filosofía de Gottlob Frege. Estos son: el binomio sentido/referencia, el valor veritativo de oraciones con elementos no referenciales, la distinción entre pensar, juzgar y aseverar, su concepción de los indéxicos y los demostrativos, así como su defensa de la existencia de un tercer reino. En algunos de ellos se mostrarán algunas problemáticas asociadas que han sido destacados por pensadores de renombre. Tal es el (...) caso, por ejemplo, de la famosa crítica de Bertrand Russell a la semántica de Frege por su incapacidad para dar cuenta del valor de verdad de oraciones ficticias. Dirigido especialmente al lector lego en la materia, aunque sin perder rigor académico, este trabajo procura presentar algunas de las principales tesis fregeanas a través de sus fuentes primarias. (shrink)

We draw attention to a series of implicit assumptions that have structured the debate about Frege’s Puzzle. Once these assumptions are made explicit, we rely on them to show that if one focuses exclusively on the issues raised by Frege cases, then one obtains a powerful consideration against a fine-grained conception of propositional-attitude content. In light of this consideration, a form of Russellianism about content becomes viable.

In this extended essay, I argue that Frege plagiarized the Stoics --and I mean exactly that-- on a large scale in his work on the philosophy of logic and language as written mainly between 1890 and his death in 1925 (much of which published posthumously) and possibly earlier. I use ‘plagiarize' (or 'plagiarise’) merely as a descriptive term. The essay is not concerned with finger pointing or casting moral judgement. The point is rather to demonstrate carefully by means of detailed (...) evidence that there are numerous (over a hundred) and extensive parallels both in formulation and --more importantly-- in content between the Stoics and Frege, parallels so plentiful that one would be hard pressed to brush them off as coincidence. These parallels include several that appear to occur in no other modern works that were published before Frege’s own and were accessible to him. Additionally, a cluster of corroborating historical data is adduced to support the suggestion, showing how easy it would have to been for Frege to plagiarize the Stoics. This (first) part of the essay is easy to read and vaguely entertaining, or so I hope. -/- (Corrigendum: At school, Frege likely had seven, not ten, years of intensive Latin and four years of intensive ancient Greek courses.). (shrink)

Este artigo tem como objetivo expor e discutir as concepções de Gottlob Frege sobre os conceitos de “sentido” e “referência” e como, por meio destes, se deu a contribuição do filósofo ao que hoje chamamos filosofia da linguagem. Entretanto, vários estudiosos não consideram Frege um autêntico filósofo da linguagem, alguns de seus escritos representam, historicamente, enorme influência nesse ramo da filosofia contemporânea, pois tentam solucionar certos problemas da linguagem. Serão analisados principalmente o célebre artigo “Sobre Sentido e Referência” bem como (...) alguns de seus escritos que se ocupam, ainda que de modo secundário, sobre ambos os conceitos. (shrink)

Frege claims that sentences of the form ‘A’ are equivalent to sentences of the form ‘it is true that A’ (The Equivalence Thesis). Frege also says that there are fictional names that fail to refer, and that sentences featuring fictional names fail to refer as a result. The thoughts such sentences express, Frege says, are also fictional, and neither true nor false. Michael Dummett argues that these claims are inconsistent. But his argument requires clarification, since there are two ways The (...) Equivalence Thesis has been formulated, according as the thesis equates the senses or the referents of the relevant sentences. -/- I have two aims in this paper. The first is to demonstrate that a sameness of sense thesis is inconsistent with Frege’s other theses. The second is to argue that a sameness of reference thesis is consistent with them. Thus, all else being equal, Frege ought to endorse a sameness of reference, rather than a sameness of sense thesis. (shrink)

I shall discuss some of the issues concerning a notorious doctrine of Frege that sentences are names of truth-values. I am interested in a problem raised by Kripke that the doctrine obscures the distinction between judgeable and unjudgeable contents. I shall present what I take to be Frege’s account of judgeable content: a proper expression of a judgeable content is susceptible to an analysis into a predicate and an argument-word, where a predicate is understood as a concept-word used to attribute (...) a certain property to the referent of the argument-word. In the light of this analysis, I shall argue that the doctrine does not obscure the distinction. The problem will also be discussed within the formal context of Grundgesetze. A new light will be shed on his rather peculiar conception of the symbol ‘ ${\boldsymbol \vdash}$’. (shrink)

In his Naming and Necessity, Saul Kripke puts forth a series of arguments against theories of proper names he calls Frege-Russell theories. As the title reveals, Kripke takes Gottlob Frege's theory of sense and Bedeutung to be a good representative of these theories. In this essay, I characterize how Frege might have answered Kripke. I agree with Kripke that presumably Frege thought that the sense of a proper name is the same as some definite description. I, however, question his assumption (...) that Frege's theory of proper names was a theory of meaning as he uses the term. I go even further and suggest that it is not so obvious that Frege thought, at least always, that the role of the concept of sense in his theory is a semantic concept at all. This constitutes the heart of my reconstruction of Frege's answer. I argue that this, together with Frege's conception of natural languages, would have allowed him to hold that the sense of a proper name may sometimes be the same as the sense of an indefinite or even a wrong description. This makes Frege's theory immune to Kripke's counter-arguments. (shrink)