Call an account of names satisfactionalist if it holds that object o is the referent of name a in virtue of o’s satisfaction of a descriptive condition associated with a. Call an account of names minimally descriptivistif it holds that if a competent speaker finds ‘a=b’ to be informative, then she must associate some information with ‘a’ which she does not associate with ‘b’. The rejection of both positions is part of the Kripkean orthodoxy, and is also built into extant (...) versions of the file-picture of reference. In this paper, I argue that the rejection of minimal descriptivism only follows from the rejection of satisfactionalism given certain implausible assumptions about the nature of competence with a proper name. I do this by showing that considerations internal to the file-picture - in particular the idea that competence with a proper name constitutes an ‘epistemically rewarding’ relation to its bearer - motivate an acceptance of minimal descriptivism. (shrink)

Davidsonian analyses of action reports like ‘Alvin chased Theodore around a tree’ are often viewed as supporting the hypothesis that sentences of a human language H have truth conditions that can be specified by a Tarski-style theory of truth for H. But in my view, simple cases of adverbial modification add to the reasons for rejecting this hypothesis, even though Davidson rightly diagnosed many implications involving adverbs as cases of conjunct-reduction in the scope of an existential quantifier. I think the (...) puzzles in this vicinity reflect “framing effects,” which reveal the implausibility of certain assumptions about how linguistic meaning is related to truth and logical form. We need to replace these assumptions with alternatives, instead of positing implausible values of event-variables or implausible relativizations of truth to linguistic descriptions of actual events. (shrink)

Davidsonian analyses of action reports like ‘Alvin chased Theodore around a tree’ are often viewed as supporting the hypothesis that sentences of a human language H have truth conditions that can be specified by a Tarski-style theory of truth for H. But in my view, simple cases of adverbial modification add to the reasons for rejecting this hypothesis, even though Davidson rightly diagnosed many implications involving adverbs as cases of conjunct-reduction in the scope of an existential quantifier. I think the (...) puzzles in this vicinity reflect “framing effects,” which reveal the implausibility of certain assumptions about how linguistic meaning is related to truth and logical form. We need to replace these assumptions with alternatives, instead of positing implausible values of event-variables or implausible relativizations of truth to linguistic descriptions of actual events. (shrink)

This paper challenges the first Gettier counterexample to the tripartite account of knowledge. Noting that 'the man who will get the job' is a description and invoking Donnellan's distinction between their 'referential' and 'attributive' uses, I argue that Smith does not actually believe that the man who will get the job has ten coins in his pocket. Smith's ignorance about who will get the job shows that the belief cannot be understood referentially, his ignorance of the coins in his pocket (...) shows that it cannot be understood attributively. An explanation for why Smith appeared to have justified true belief is given by distinguishing between 'belief' and 'belief in truth'. Smith believes the sentence 'the man who will get the job has ten coins in his pocket' to be true (he mistakenly believes that Jones will get the job, of whom he knows that he has ten coins in his pocket) (hence his 'belief'), the sentence is true (hence 'truth'), and he has sufficient reason to assent to it (hence his 'justification'). But he does not believe the proposition expressed. Hence he does not know it either. (shrink)

ABSTRACT: I shall consider the phenomenon of believing ourselves to have at least one false belief: a phenomenon I call believed fallibility I shall first present a paradoxical argument which appears to show that believed fallibility is incoherent; second, note that this argument assumes that we are committed to the conjunction of all our beliefs; third, sketch a more intuitive notion of commitment in which we are not committed to the conjunction of all our beliefs and argue that the original (...) paradoxical argument is now defused; fourth, construct a new paradoxical argument showing that if we believe that we have at least one false belief we are committed to a contradiction, employing the preferable notion of commitment; and, fifth, suggest that perhaps we might avoid the new paradox by denying that closing our beliefs under conjunction is required by rationalityRÉSUMÉ: Je me pencherai ici sur le phénomène qui consiste à penser que nous avons au moins une opinion fausse: je nomme ce phénoméne «la croyance d’etre faillible». Je présente en premier lieu un argument paradoxal qui semble démontrer que la croyance d’être faillible est incohérente. Deuxièmement, je remarque que cet argument suppose que nous nous obligions à réaliser la conjonction de toutes nosopinions. Troisièmement, je propose une version plus intuitive de cette obligation selon laquelle nous ne sommes pas obligés de réaliser la conjonction de toutes nos opinions, et je soutiens que le paradoxe initial est alors désamorcé. Quatrièmement, je construis un nouvel argument paradoxal démontrant que, si nous croyons que nous avons au moins une opinion fausse, nous sommes obligés de nous contredire, selon la notion d’obligation que je préconise d’adopter. Cinquièmement, je suggère que nous pourrions peut-être éviter ce nouveau paradoxe en niant que la rationalité exige de soumettre nos opinions à la conjonction. (shrink)

The theory of concepts advanced in the dissertation aims at accounting for a) how a concept makes successful practice possible, and b) how a scientific concept can be subject to rational change in the course of history. Traditional accounts in the philosophy of science have usually studied concepts in terms only of their reference; their concern is to establish a stability of reference in order to address the incommensurability problem. My discussion, in contrast, suggests that each scientific concept consists of (...) three components of content: 1) reference, 2) inferential role, and 3) the epistemic goal pursued with the concept's use. I argue that in the course of history a concept can change in any of these three components, and that change in one component—including change of reference—can be accounted for as being rational relative to other components, in particular a concept's epistemic goal.This semantic framework is applied to two cases from the history of biology: the homology concept as used in 19th and 20th century biology, and the gene concept as used in different parts of the 20th century. The homology case study argues that the advent of Darwinian evolutionary theory, despite introducing a new definition of homology, did not bring about a new homology concept (distinct from the pre-Darwinian concept) in the 19th century. Nowadays, however, distinct homology concepts are used in systematics/evolutionary biology, in evolutionary developmental biology, and in molecular biology. The emergence of these different homology concepts is explained as occurring in a rational fashion. The gene case study argues that conceptual progress occurred with the transition from the classical to the molecular gene concept, despite a change in reference. In the last two decades, change occurred internal to the molecular gene concept, so that nowadays this concept's usage and reference varies from context to context. I argue that this situation emerged rationally and that the current variation in usage and reference is conducive to biological practice.The dissertation uses ideas and methodological tools from the philosophy of mind and language, the philosophy of science, the history of science, and the psychology of concepts. (shrink)

I argue that thoughts and concepts are mental representations rather than abstracta. I propose that the most important difference between the two views is that the mentalist believes that there are concept and thought tokens as well as types; this reveals that the dispute is not terminological but ontological. I proceed to offer an argument for mentalism. The key step is to establish that concepts and thoughts have lexical as well as semantic properties. I then show that this entails that (...) concepts and thoughts are susceptible to the type/token distinction. I finish by considering some objections to the argument. (shrink)

Ned Block; IX*—An Argument for Holism1, Proceedings of the Aristotelian Society, Volume 95, Issue 1, 1 June 1995, Pages 151–170.

This paper is about the semantic analysis of referentially opaque verbs like seek and owe that give rise to nonspecific readings. It is argued that Montague's categorization (based on earlier work by Quine) of opaque verbs as properties of quantifiers runs into two serious difficulties: the first problem is that it does not work with opaque verbs like resemble that resist any lexical decomposition of the seek ap try to find kind; the second one is that it wrongly predicts de (...) dicto (i.e. narrow scope) readings due to quantified noun phrases in the object positions of such verbs. It is shown that both difficulties can be overcome by an analysis of opaque verbs as operating on properties. This is a strongly modified version of a paper entitled lsquoDo We Bear Attitudes towards Quantifiers?rsquo that I have presented at conferences in Gosen (Gesellschaft für Sprachwissenschaft), Ithaca (SALT I), and Konstanz (Lexikon). I owe a special debt to Hans Kamp and Arnim von Stechow for shaping my views on the subject of this paper during the past ten years or so. Comments from and discussions with the following friends and colleagues have also led to considerable improvements: Heinrich Beck, Steve Berman, David Dowty, Veerle van Geenhoven, Fritz Hamm, Irene Heim, Wolfgang Klein, Angelika Kratzer, Michael Morreau, Barbara Partee, Mats Rooth, Roger Schwarzschild, Wolfgang Sternefeld, Emil Weydert, Henk Zeevat, and three referees. (shrink)

of my axiomatic theory of abstract objects.¹ The theory asserts the ex- istence not only of ordinary properties, relations, and propositions, but also of abstract individuals and abstract properties and relations. The.

De jure coreference in a discourse is typically understood as explicit coreference that speakers are required to recognize in order to count as having correctly understood the discourse. For example, in an utterance of the sentence ‘Tom went to the market because he needed soy milk’, the two underlined terms are typically coreferential in a way that appreciating their coreference is required to fully understand the utterance. Often, de jure coreference is understood as an equivalence relation, so in particular it (...) is thought of as a transitive relation. However, Pinillos (Philos Stud 154(2):301–324, 2011) provides examples that apparently challenge the transitivity of de jure coreference. In this paper, I argue for two claims. First, while it is inconclusive whether the relevant terms in Pinillos’s examples satisfy his third condition, it is much clearer that they fail to satisfy his first two conditions. Given that Pinillos’s conditions capture important characteristics of de jure coreference, his examples do not successfully show the non-transitivity of de jure coreference. Second, I present an alternative account of his examples, one that shows which representation the anaphoric pronoun in an example of the sort that he presents is de jure coreferential with. (shrink)

As Quine observed, the following sentence has a reading which, if true, would be of special interest to the authorities: Ralph believes that someone is a spy. This is the reading where the quantifier is naturally understood as taking wide scope relative to the attitude verb and as binding a variable within the scope of the attitude verb. This essay is interested in addressing the question what the semantic analysis of this kind of reading should look like from a Fregean (...) perspective—a perspective according to which attitude states are generally relations to structured Fregean thoughts composed of senses. The Fregean view faces a challenge of compositionality here. This essay describes the challenge and offers a response on the Fregean's behalf. (shrink)

Holmes exists is false. How can this be, when there is no one for the sentence to misdescribe? Part of the answer is that a sentence’s topic depends on context. The king of France is bald, normally unevaluable, is false qua description of the bald people. Likewise Holmes exists is false qua description of the things that exist; it misdescribes those things as having Holmes among them. This does not explain, though, how Holmes does not exist differs in cognitive content (...) from, say, Vulcan does not exist. Our answer builds on an observation of Kripke’s: even if Holmes exists, he is not in this room, for we were all born too late. (shrink)

According to a posteriori physicalism, phenomenal properties are physical properties, despite the unbridgeable cognitive gap that holds between phenomenal concepts and physical concepts. Current debates about a posteriori physicalism turn on what I call “the perspicuity principle”: it is impossible for a suitably astute cognizer to possess concepts of a certain sort—viz., narrow concepts—without being able to tell whether the referents of those concepts are the same or different. The perspicuity principle tends to strike a posteriori physicalists as implausibly rationalistic; (...) further, a posteriori physicalists maintain that even if the principle is applicable to many narrow concepts, phenomenal concepts have unique features that render them inferentially isolated from other narrow concepts ). I argue, on the contrary, that the case for the perspicuity principle is quite strong. Moreover, not only have versions of the PCS repeatedly failed, likely, all versions will, given the strange combination of lucidity and opacity that the PCS has to juggle. I conclude that a posteriori physicalists currently lack a principled objection to classic anti-physicalist arguments. (shrink)

This paper is about the relations between the contents of our beliefs and the contents of the sentences used in the that‐clauses of our belief ascriptions. Loar has argued that any inference from sameness or difference of correct belief ascription to sameness or difference of belief content is illegitimate. In contrast, I defend a requirement (the Logic Requirement) that the logical properties of the sentence embedded in a belief ascription should, on that occasion of use, match the logical properties of (...) the belief content ascribed. (shrink)

The possibility of justified true belief without knowledge is normally motivated by informally classified examples. This paper shows that it can also be motivated more formally, by a natural class of epistemic models in which both knowledge and justified belief (in the relevant sense) are represented. The models involve a distinction between appearance and reality. Gettier cases arise because the agent's ignorance increases as the gap between appearance and reality widens. The models also exhibit an epistemic asymmetry between good and (...) bad cases that sceptics seem to ignore or deny. (shrink)

The possibility of justified true belief without knowledge is normally motivated by informally classified examples. This paper shows that it can also be motivated more formally, by a natural class of epistemic models in which both knowledge and justified belief are represented. The models involve a distinction between appearance and reality. Gettier cases arise because the agent's ignorance increases as the gap between appearance and reality widens. The models also exhibit an epistemic asymmetry between good and bad cases that sceptics (...) seem to ignore or deny. (shrink)

The lecture starts by considering analytic philosophy as a tradition, and its global spread over recent years, of which Disputatio’s success is itself evidence. The costs and benefits of the role of English as the international language of analytic philosophy are briefly assessed. The spread of analytic philosophy is welcomed as the best hope for scientific philosophy, in a sense of ‘science’ on which mathematics, history, and philosophy can all count as sciences, though not as natural sciences. Arguably, experimental philosophy (...) provides no plausible alternative methodology for philosophy, only a way of psychologizing it. However, it serves a useful purpose by highlighting the inadequacy of current methods for detecting errors in judgments on possible cases, which may result from reliance on possibly universal but imperfectly reliable cognitive heuristics. The problem is exacerbated by analytic philosophers’ tendency to regard increased flexibility in a theoretical framework as progress, where natural scientists would treat it as methodologically vicious profligacy with degrees of freedom. The result is a familiar type of bad science, overfitting theory to uncritically accepted data. The recent ‘hyperintensional revolution’ may be an example of such overfitting, it is suggested. The lecture ends with a call for a more miserly attitude to degrees of freedom. (shrink)

The paper develops a proof-theoretic semantics for belief reports by extending the constructive type-theoretical formalism presented in Więckowski with a specific kind of set-forming operator suited for the representation of belief attitudes. The extended formalism allows us to interpret constructions which involve, e.g., iteration of belief, quantifying into belief contexts, and anaphora in belief reports. Moreover, constructive solutions to canonical instances of the problem of hyperintensionality are suggested. The paper includes a discussion of Ranta’s constructive account of belief reports.

Objective reasons are given by the facts. Subjective reasons are given by one’s perspective on the facts. Subjective reasons, not objective reasons, determine what it is rational to do. In this paper, I argue against a prominent account of subjective reasons. The problem with that account, I suggest, is that it makes what one has subjective reason to do, and hence what it is rational to do, turn on matters outside or independent of one’s perspective. After explaining and establishing this (...) point, I offer a novel account of subjective reasons which avoids the problem. (shrink)

According to phenomenal conservatism, seemings can provide prima facie justification for beliefs. In order to fully assess phenomenal conservatism, it is important to understand the nature of seemings. Two views are that (SG) seemings are a sui generis propositional attitude, and that (D2B) seemings are nothing over and above dispositions to believe. Proponents of (SG) reject (D2B) in large part by providing four distinct objections against (D2B). First, seemings have a distinctive phenomenology, but dispositions to believe do not. Second, seemings (...) can provide a non-trivial explanation for dispositions to believe, which wouldn’t be possible if seemings were dispositions to believe. Third, there are some dispositions to believe that are not seemings. Fourth, there are instances of seemings which are not dispositions to believe. I consider and reject each of these objections. The first and third objections rely on a misunderstanding of (D2B). The second objection fails because there are contexts in which an appeal to a previously unknown identity can provide an interesting explanation. The fourth objection overlooks the possibility of finkish and masked dispositions, phenomena which are widely accepted in the dispositions literature. I conclude that (D2B) escapes these common objections unscathed. (shrink)

In this paper, I want to hold, first, that a treatment of Frege cases in terms of a difference in cognitive phenomenology of the involved experiential mental states is not viable. Second, I will put forward another treatment of such cases that appeals to a difference in intentional objects metaphysically conceived not as exotica, but as schematic objects, that is, as objects that have no metaphysical nature qua objects of thought. This allows their nature to be settled independently of their (...) being thought of, in particular as concrete entities in the sense of entities that may be spatiotemporal occupiers. Yet third, as to Frege cases, cognitive phenomenology may return from the back door. For the realization that, if correct, solves any such case cannot but have a proprietary, though neither distinctive nor individuative, phenomenology. In my account, this is the realization that the different schematic intentional objects involved are none other than the same entity. (shrink)

Along with a well-honoured tradition, we will accept that intentionality is at least a property a thought holds necessarily, i.e., in all possible worlds that contain it; more specifically, a necessary relation, namely the relation of existential dependence of the thought on its intentional object. Yet we will first of all try to show that intentionality is more than that. For we will claim that intentionality is an essential property of the thought, namely a property whose predication to the thought (...) is true in virtue of the identity, or nature, of such a thought. More particularly, for us intentionality will again be a relation, yet a relation of ontological dependence of the thought on its intentional object; specifically, the relation for the thought of being constituted by its object. Moreover, we will try to show that if intentionality is such a constitutive relation for the thought that has it, certain metaphysical consequences ensue. First, an objectual thought, a thought whose content basically consists in its intentional object, is nothing but that object in a certain cogitative modality, or, which is the same, as playing a certain motivational role for the subject entertaining the thought itself (at a certain time). Second, if an objectual thought is nothing but an intentional object in a cogitative modality, such a thought, not only as a type, but also as a token, is an abstract entity. More specifically, an objectual thought-type, an abstract object par excellence, is indeed instantiated by objectual thought-tokens which are again abstract particulars, yet of a specific kind: namely, tropes of a relational sort depending for their existence on their bearers (and possibly also on their temporal location). (shrink)

Has Fodor demonstrated conceptual atomism?

It seems uncontroversial that Dalton wrongly believed that atoms are indivisible. However, the correct analysis of Dalton’s belief and the way it relates to contemporary beliefs about atoms is, on closer inspection, far from straightforward. In this paper, I introduce four features that any candidate analysis is plausibly bound to respect. I argue that theories that individuate concepts at the level of understanding are doomed to fail in this endeavor. I formally sketch an alternative and suggest that cases such as (...) the one presented provide support for the claim that the genuine source for concept individuation is public sharable thought. (shrink)

Paradigmatic cases of disagreement seem not to be compatible with a widespread kind of solution to Kripke’s celebrated Pierre puzzle. As a result, the classical puzzle about rational belief is shown to be also a puzzle about public disagreement/agreement phenomena. In this paper, I defend that the new public version of the puzzle is substantial and challenging and conclude that a full solution to Kripke’s considerations must offer a satisfactory account of both the rational and public character of belief attributions. (...) I then argue that a notion of non-belief-individuating understanding is plausibly the key notion that would allow us to arrest both versions of the Pierre puzzle. (shrink)

Verdejo, Víctor_A Puzzle about Disagreement.

Truthmakers, truth conditions, and analyses are closely related, but distinct in rather important ways. A failure to properly appreciate their differences has led to some confusion regarding the role that possible worlds ought to play with respect to modality. Those philosophers who initially proposed the existence of possible worlds were understood as providing an analysis of modality. More recently, many have interpreted them as providing modal truthmakers. But, possible worlds are only suited to serve as truth conditions for modal truths. (...) My goals are as follows: First, to dispel this confusion by detailing the differences between these three concepts. Second, to apply the lesson learned to the famous Humphrey objection against possible worlds. While this objection, if successful, does undermine Lewisian modal realism, it only partially undermines ersatzism, and leaves available a route by which ersatzers may avoid the objection altogether. (shrink)

Traditionnellement, une théorie de la signification doit rendre compte à la fois des conditions de vérité des phrases des langues naturelles et des relations évidentes qu'entretiennent le langage et la pensée. À ce titre, le paradigme frégéen est un modele du genre. Une phrase y est dite exprimer une pensée, laquelle lui sert de valeur cognitive et a une valeur de vérité. Différentes occurrences d'une même phrase expriment une même pensée. Si cette phrase a une occurrence dans un contexte d'attitude (...) propositionnelle, elle réfère à la pensée qu'elle exprimerait en contexte ordinaire. La théorie de la référence directe a fait voler en éclats cette image aussi simple que claire de la relation entre langage et pensée. C'est sur cet arrière-plan que prend place le livre de François Récanati, Direct Reference. Une bonne partie des efforts de l'auteur est en effet consacrée à rétablir des liens aujourd'hui étiolés. (shrink)

Frege’s puzzling remarks on the beginning of On Sense and Reference challenge us to explain how true identity sentences of the form a = a can differ in cognitive value from sentences of the form a = b when they are made true by the same object’s self-identity. Some philosophers (e.g. Almog, Glezakos and Paganini) suggest that the puzzle cannot be set up in the context of natural languages since natural sentences, unlike those of regimented formal ones, do not wear (...) their logical properties on their sleeves. In this paper we argue that, on the contrary, there exists a notion of coordination between names which is apt to track the relevant logical properties of natural sentences and therefore to set up the puzzle in natural languages. Frege’s puzzle is here to stay. (shrink)

It seems plausible that successfully communicating with our peers requires entertaining the same thoughts as they do. We argue that this view is incompatible with other, independently plausible principles of thought individuation. Our argument is based on a puzzle inspired by the Kripkean story of Peter and Paderewski: having developed several variations of the original story, we conclude that understanding and communication cannot be modeled as a process of thought transfer between speaker and hearer. While we are not the first (...) to reach this conclusion, the significance of our argument lies in the fact that it only relies on widely accepted premises, without depending on any especially controversial theory of mental and linguistic content. We conclude by drawing out the implications of that conclusion: if communication and understanding do not require thought identity, then one important motivation for the postulation of inter-personally shared thoughts is undercut. (shrink)

Speakers are confused about identity if they mistake one thing for two or two things for one. I present two plausible models of confusion, the Frege model and the Millikan model. I show how a prominent objection to Fregean models fails and argue that confusion consists in having false implicit beliefs involving the identity relation. Further, I argue that confused identity has characteristic corruptive effects on singular cognition and on the proper function of singular terms in linguistic communication.

At first pass, internalism about justification is the view that there is no justificatory difference without an internal difference. Externalism about mental content is the view that there are differences in mental content without an internal difference. Assuming mental contents are the primary bearers of justificatory features, the two views are in obvious tension. The goal of this paper is to determine how the tension is best resolved. The paper proceeds as follows. In §1 I explain the threat to justificatory (...) internalism from content externalism in more detail. In §2 I present Earl Conee and Richard Feldman’s “counterpart propositions” reply to the problem of content externalism. §3 criticizes the counterpart propositions reply. §4 presents a view in the metaphysics of belief that is widely adopted by content externalists: one that appeals to vehicles of content, modes of presentation of content, or ways of believing propositions. §5 exploits this metaphysics of belief in order to better accommodate justificatory internalist insights in light of content externalism. §6 shows how the new view can be used to address problems that face Conee and Feldman’s account. Finally, §7 provides a new argument from the Vehicle View for the language of thought hypothesis. (shrink)

Conventional wisdom has it that there is a class of attitude ascriptions such that in making an ascription of that sort, the ascriber undertakes a commitment to specify the contents of the ascribee’s head in what might be called a notionally sensitive, ascribee-centered way. In making such an ascription, the ascriber is supposed to undertake a commitment to specify the modes of presentation, concepts or notions under which the ascribee cognizes the objects (and properties) that her beliefs are about. Consequently, (...) it is widely supposed that an ascription of the relevant sort will be true just in case it specifies either directly or indirectly both what the ascribee believes and how she believes it. The class of “notionally sensitive” ascriptions has been variously characterized. Quine (1956) calls the class I have in mind the class of notional ascriptions and distinguishes it from the class of relational ascriptions. Others call the relevant class the class of de dicto ascriptions and distinguish it from the class of de re ascriptions. More recently, it has been called the class of notionally loaded ascriptions (Crimmins 1992, 1995). So understood, the class can be contrasted with the class of notionally neutral ascriptions. Just as the class of notional/de dicto/notionally loaded ascriptions is supposed to put at semantic issue the ascribee’s notions/conceptions/modes of presentation, so ascriptions in the relational/de re/notionally neutral class are supposed not to.. (shrink)

In this paper we present a solution to Saul Kripke’s Puzzle About Belief Meaning and use, Dordrecht, 1979) based on Kaplan’s metaphysical picture of words. Although it is widely accepted that providing such a solution was one of the main incentives for the development of Kaplan’s theory, it was never presented by Kaplan in a systematic manner and was regarded by many as unsatisfactory. We agree with these critiques, and develop an extension of Kaplan’s theory by introducing the notion of (...) “conservative” word uses, as well as arguing for the restriction of Kripke’s Disquotational Principle only to such uses. This restriction allows us to solve Kripke’s Puzzle by arguing that the assent of the puzzle’s protagonist does not allow disquotation and ascription of corresponding inconsistent belief, as it contains the non-conservative use of a proper name. At the end of the paper, we defend two of Kaplan’s theses that we find essential for our argument to work: that individuation of word tokens involves taking into account the intention of the speaker, and that different uniquely referring proper names of the same shape should be regarded as different homonymous words. (shrink)

The aim of this paper is to present and analyze arguments provided for the Psychological Principle of Non-Contradiction which states that one cannot have, or cannot be described as having, contradictory beliefs. By differentiating two possible interpretations of PNC, descriptive and normative, and examining arguments provided for each of them separately I point out the flaws in reasoning in these arguments and difficulties with aligning PNC with the empirical data provided by research done in cognitive and clinical psychology. I claim (...) that PNC cannot be derived from any metaphysical stance regarding the mental phenomena and that having contradictory beliefs should be regarded as possible. Furthermore, I argue that interpreting a subject as having contradictory beliefs, and therefore abandoning PNC, can be more effective in explaining the phenomena of contradictory beliefs and irrational behaviour than solutions consistent with the PNC. (shrink)

Celem tego tekstu jest rekonstrukcja i analiza argumentów przedstawianych za Psychologiczną Zasadą Niesprzeczności, stwierdzającą, że żaden podmiot nie może mieć sprzecznych przekonań lub być opisany jako posiadający sprzeczne przekonania. Poprzez rozróżnienie dwóch możliwych interpretacji PZN, deskryptywnej i normatywnej, oraz dokładne zbadanie argumentacji przedstawionej dla każdej z nich z osobna, wskazuję zawarte w nich błędy oraz problemy związane z uzgodnieniem ich z wynikami badań prowadzonych w psychologii poznawczej i klinicznej. Uzasadniam, dlaczego PZN nie może być wyprowadzona z żadnego ze stanowisk metafizycznych (...) dotyczących nastawień sądzeniowych i że posiadanie sprzecznych przekonań powinno być uznane za możliwe. Następnie piszę, dlaczego zinterpretowanie niektórych podmiotów jako posiadających sprzeczne przekonania może być bardziej efektywne w wyjaśnianiu przypadków nieracjonalnego zachowania niż rozwiązania zgodne z PZN. (shrink)

Toward a theory of n-tuples of individuals and concepts as surrogates for Russellian singular propositions and singular concepts. Alonzo Church proposed a powerful and elegant theory of sequences of functions and their arguments as singular-concept surrogates. Church’s account accords with his Alternative (0), the strictest of his three competing criteria for strict synonymy. The currently popular objection to strict criteria like (0) on the basis of the Russell-Myhill paradox is here rebutted. As Church recognized, Russell-Myhill is not a problem specifically (...) for Alternative (0). Rather it is a disproof of unrestricted concept comprehension. Unrestricted comprehension is also inconsistent with facts about sets of properties. It is demonstrated furthermore that the principal rival conception of propositions--propositions conceived as classes of possible worlds--is subject to a fatal philosophical collapse: It follows on that conception, given that each of us is fallible, that everyone believes everything. Although it is far superior to its principal rival conception, Church’s proposed theory is vulnerable under (0) to a version of Russell’s notorious Gray’s /Elegy/ objection. Some amendments to Church’s proposal are proffered that address Russell’s objection, including an amendment first proposed in the present author’s /Frege’s Puzzle/ (1986). Church’s response (personal correspondence) is considered. (shrink)

I argue that thoughts and concepts are mental representations rather than abstracta. I propose that the most important difference between the two views is that the mentalist believes that there are concept and thought tokens as well as types; this reveals that the dispute is not terminological but ontological. I proceed to offer an argument for mentalism. The key step is to establish that concepts and thoughts have lexical as well as semantic properties. I then show that this entails that (...) concepts and thoughts are susceptible to the type/token distinction. I finish by considering some objections to the argument. (shrink)