Results for 'Kaarlo Jaakko Juhani Hintikka'

91 found
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  1. How to prove the consistency of arithmetic.Jaakko Hintikka & Besim Karakadilar - 2006 - Acta Philosophica Fennica 78:1.
    It is argued that the goal of Hilbert's program was to prove the model-theoretical consistency of different axiom systems. This Hilbert proposed to do by proving the deductive consistency of the relevant systems. In the extended independence-friendly logic there is a complete proof method for the contradictory negations of independence-friendly sentences, so the existence of a single proposition that is not disprovable from arithmetic axioms can be shown formally in the extended independence-friendly logic. It can also be proved by means (...)
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  2. The Construction of Relations in Hume and Quine, directed by Jaakko Hintikka (Introduction).Stefanie A. Rocknak - 1999 - Dissertation, Boston University
    Hume and Quine argue that human beings do not have access to general knowledge, that is, to general truths . The arguments of these two philosophers are premised on what Jaakko Hintikka has called the atomistic postulate. In the present work, it is shown that Hume and Quine in fact sanction an extreme version of this postulate, according to which even items of particular knowledge are not directly accessible in so far as they are relational. For according to (...)
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  3. Intuition and ecthesis: the exegesis of Jaakko Hintikka on mathematical knowledge in kant's doctrine.María Carolina Álvarez Puerta - 2017 - Apuntes Filosóficos 26 (50):32-55.
    Hintikka considers that the “Transcendental Deduction” includes finding the role that concepts in the effort is meant by human activities of acquiring knowledge; and it affirms that the principles governing human activities of knowledge can be objective rules that can become transcendental conditions of experience and no conditions contingent product of nature of human agents involved in the know. In his opinion, intuition as it is used by Kant not be understood in the traditional way, ie as producer of (...)
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  4. Meeting Hintikka's Challenge to Paraconsistentism.Walter Carnielli - 2009 - Principia: An International Journal of Epistemology 13 (3):283-297.
    Jaakko Hintikka, in a series of talks in Brazil in 2008, defended that IF logic and paraconsistent logic are, in a sense, very similar. Having sketched the proposal of a new paraconsistent system, he maintains that several achievements of IF logic could be reproducible in paraconsistent logic. One of the major difficulties, left as a challenge, would be to formulate some truth conditions for this new paraconsistent first-order language in order to make IF logic and paraconsistent logic more (...)
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  5. Règles de logique, Règles de discours. La pragmatique de la connaissance selon Hintikka.Fabien Schang - 2018 - Klesis 39:92-124.
    L’article qui suit a pour but de présenter un des aspects centraux de la contribution philosophique de Jaakko Hintikka : l’épistémologie formelle. Le thème choisi, le Paradoxe de Moore, permettra d’illustrer le mot d’ordre de la philosophie formelle, celui d’utiliser des outils logiques en vue de la clarification de problèmes philosophiques. Il s’agit également de mettre en évidence la nature pragmatique du discours épistémique, qui transparaît dans les résultats sémantiques de Hintikka et parle en faveur de la (...)
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  6. How to save Aristotle from modal collapse.Derek von Barandy - 2013 - Studia Neoaristotelica 10 (1):89-98.
    On Jaakko Hintikka’s understanding of Aristotle’s modal thought, Aristotle is committed to a version of the Principle of Plenitude, which is the thesis that no genuine possibility will go unactualized in an infinity of time. If in fact Aristotle endorses the Principle of Plenitude, everything becomes necessary. Despite the strong evidence that Aristotle indeed accepts that Principle of Plenitude, there are key texts in which Aristotle seems to contradict it. On Hintikka’s final word on the matter, Aristotle (...)
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  7. How to Hintikkize a Frege.Fabien Schang - 2016 - In Amirouche Moktefi, Alessio Moretti & Fabien Schang (eds.), Let’s be Logical (Studies in the Philosophy and History of Logic). London: College Publications. pp. 161-172.
    The paper deals with the main contribution of the Finnish logician Jaakko Hintikka: epistemic logic, in particular the 'static' version of the system based on the formal analysis of the concepts of knowledge and belief. I propose to take a different look at this philosophical logic and to consider it from the opposite point of view of the philosophy of logic. At first, two theories of meaning are described and associated with two competing theories of linguistic competence. In (...)
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  8. A Philosophically Neutral Semantics for Perception Sentences.Samuele Iaquinto & Giuseppe Spolaore - 2022 - Theoria 88:532-544.
    Jaakko Hintikka proposed treating objectual perception sentences, such as “Alice sees Bob,” as de re propositional perception sentences. Esa Saarinen extended Hintikka’s idea to eventive perception sentences, such as “Alice sees Bob smile.” These approaches, elegant as they may be, are not philosophically neutral, for they presuppose, controversially, that the content of all perceptual experiences is propositional in nature. The aim of this paper is to propose a formal treatment of objectual and eventive perception sentences that builds (...)
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  9. Truth, Proof and Gödelian Arguments: A Defence of Tarskian Truth in Mathematics.Markus Pantsar - 2009 - Dissertation, University of Helsinki
    One of the most fundamental questions in the philosophy of mathematics concerns the relation between truth and formal proof. The position according to which the two concepts are the same is called deflationism, and the opposing viewpoint substantialism. In an important result of mathematical logic, Kurt Gödel proved in his first incompleteness theorem that all consistent formal systems containing arithmetic include sentences that can neither be proved nor disproved within that system. However, such undecidable Gödel sentences can be established to (...)
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  10. Belief Contexts and Epistemic Possibility.Hylarie Kochiras - 2006 - Principia: An International Journal of Epistemology 10 (1):1-20.
    Although epistemic possibility figures in several debates, those debates have had relatively little contact with one another. G. E. Moore focused squarely upon analyzing epistemic uses of the phrase, ‘It’s possible that p’, and in doing so he made two fundamental assumptions. First, he assumed that epistemic possibility statements always express the epistemic position of a community, as opposed to that of an individual speaker. Second, he assumed that all epistemic uses of ‘It’s possible that p’ are analyzable in terms (...)
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  11. Synthetic proofs.Salman Panahy - 2023 - Synthese 201 (2):1-25.
    This is a contribution to the idea that some proofs in first-order logic are synthetic. Syntheticity is understood here in its classical geometrical sense. Starting from Jaakko Hintikka’s original idea and Allen Hazen’s insights, this paper develops a method to define the ‘graphical form’ of formulae in monadic and dyadic fraction of first-order logic. Then a synthetic inferential step in Natural Deduction is defined. A proof is defined as synthetic if it includes at least one synthetic inferential step. (...)
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  12. Leibniz on Rational Decision-Making.Markku Roinila - 2007 - Dissertation, University of Helsinki
    In this study I discuss G. W. Leibniz's (1646-1716) views on rational decision-making from the standpoint of both God and man. The Divine decision takes place within creation, as God freely chooses the best from an infinite number of possible worlds. While God's choice is based on absolutely certain knowledge, human decisions on practical matters are mostly based on uncertain knowledge. However, in many respects they could be regarded as analogous in more complicated situations. In addition to giving an overview (...)
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  13. Performative transcendental arguments.Adrian Bardon - 2005 - Philosophia 33 (1-4):69-95.
    ‘Performative’ transcendental arguments exploit the status of a subcategory of self-falsifying propositions in showing that some form of skepticism is unsustainable. The aim of this paper is to examine the relationship between performatively inconsistent propositions and transcendental arguments, and then to compare performative transcendental arguments to modest transcendental arguments that seek only to establish the indispensability of some belief or conceptual framework. Reconceptualizing transcendental arguments as performative helps focus the intended dilemma for the skeptic: performative transcendental arguments directly confront the (...)
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  14. Intentionality and Referentiality. The problem of referentiality in Husserl's 'Zeitdenken'.Babu Thaliath - manuscript
    In the framework of Husserl's phenomenology, intentionality is regarded as the main feature of every act of consciousness. Our consciousness is directed towards objects immanent in it, however in a variety of epistemological functions and operations, such as sensory perception, judgment, cognition, volition, imagination, etc. Husserl uses the technical terms noesis and noema to designate the intentional acts of consciousness and their outcome in the constitution of objects in consciousness. At the same time, the persistence of a hyletic data is (...)
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  15. Leibniz's Models of Rational Decision.Markku Roinila - 2008 - In Marcelo Dascal (ed.), Leibniz: What Kind of Rationalist? Springer. pp. 357-370.
    Leibniz frequently argued that reasons are to be weighed against each other as in a pair of scales, as Professor Marcelo Dascal has shown in his article "The Balance of Reason." In this kind of weighing it is not necessary to reach demonstrative certainty – one need only judge whether the reasons weigh more on behalf of one or the other option However, a different kind of account about rational decision-making can be found in some of Leibniz's writings. In his (...)
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  16. Avoiding Façons de Parler: Potentiality and Possibility in Aristotle’s Philosophy.José Luis Fernández - 2023 - Humanities Bulletin 6 (2):66-77.
    The distinction between potentiality and possibility in Aristotle’s modal teleology is sometimes conflated by the implicative conjunction that potentiality implies possibility and possibility implies potentiality. In his unpublished doctoral dissertation Richard Rorty warns that trying to pin down Aristotle’s definition of potentiality often leads to treating the term as a “mere façon de parler.” Consonant with Rorty, this paper observes that the definition of possibility in Aristotle’s works is not without its own share of semantic snags. Subsequently, I abide by (...)
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  17. L’interprétation performative du Cogito cartésien.Elena Dragalina Chernaya - 2013 - Cahiers de Philosophie de L’Université de Caen 50:121-139..
    Cet article a pour but d’étudier les perspectives que l’approche performative de la preuve fournit, afin de répondre à deux questions classiques liées à l’interprétation de l’argument cartésien : Cogito ergo sum. La première question est la suivante : quel type de contrainte logique ou non-logique ergo exprime-t-il dans la formulation de cet argument? La seconde question est celle-ci : quel type d’existence est manifesté par l’argument Cogito, ou Cogito ergo quis est ?
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  18. The World as Active Power: Studies in the History of European Reason.Juhani Pietarinen & Valtteri Viljanen (eds.) - 2009 - Leiden: Brill.
    This collection of essays discusses a central feature of European philosophy: the idea of a universal active power as the ultimate world-explanation.
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  19. A Note to "Meaning in Time".Jaakko Reinikainen - 2023 - In Jani Sinokki (ed.), Colloquium Volume - The Philosophical Society of Finland's Annual Colloquium 2022 in Oulu. Philosophical Society of Finland. pp. 167-183.
    As the title suggests, this paper is something of a leftover – or perhaps a new branch – to my "Meaning in Time: on temporal externalism and Kripkenstein’s skeptical challenge". In that work I essayed to portray my understanding of the sceptical challenge uncovered by Saul Kripke’s reading of Wittgenstein’s later works in a nutshell as to its nature and resolution. Here, my task is to dig a little deeper into the key phrase of the earlier paper, namely the claim (...)
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  20. Meaning in time: on temporal externalism and Kripkenstein’s skeptical challenge.Jaakko Reinikainen - 2022 - Synthese 200 (288):1-27.
    The main question of metasemantics, or foundational semantics, is why an expression token has the meaning (semantic value) that it in fact has. In his reading of Ludwig Wittgenstein’s later work, Saul Kripke presented a skeptical challenge that threatened to make the foundational question unanswerable. My first contention in this paper is that the skeptical challenge indeed poses an insoluble paradox, but only for a certain kind of metasemantic theory, against which the challenge effectively works as a reductio ad absurdum (...)
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  21. Propositions and compositionality.Juhani Yli-Vakkuri - 2013 - Philosophical Perspectives 27 (1):526-563.
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  22. Brandom and the Pragmatist Quest for Semantic Objectivity.Jaakko Reinikainen - 2021 - Acta Philosophica Fennica 97:55-78.
    The aim of this paper is to critically examine the concept of semantic objectivity inherent in Robert Brandom`s works, most importantly Making It Explicit. Concerning Brandom`s theoretical aims, I shall argue that there is some discrepancy between his formal and informal characterisations of the criteria by which his account is to be judged as adequate. After expounding on the discrepancy, I shall propose to reconstruct a mostly implicit line of argument in MIE, highlighted by the more recent developments of Brandom`s (...)
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  23.  83
    Metaphysics of risk and luck.Jaakko Hirvelä - forthcoming - Noûs.
    According to the modal account of luck it is a matter of luck that p if p is true at the actual world, but false in a wide‐range of nearby worlds. According to the modal account of risk, it is risky that p if p is true at some close world. I argue that the modal accounts of luck and risk do not mesh well together. The views entail that p can be both maximally risky and maximally lucky, but there (...)
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  24. Defending the pure causal-historical theory of reference fixing for natural kind terms.Jaakko Tapio Reinikainen - 2024 - Synthese 203 (131):1-15.
    According to the causal-historical theory of reference, natural kind terms refer in virtue of complicated causal relations the speakers have to their environment. A common objection to the theory is that purely causal relations are insufficient to fix reference in a determinate fashion. The so-called hybrid view holds that what is also needed for successful fixing are true descriptions associated in the mind of the speaker with the referent. The main claim of this paper is that the objection fails: reference (...)
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  25. The Epistemology of Modality.Margot Strohminger & Juhani Yli-Vakkuri - 2017 - Analysis 77 (4):825-838.
    This article surveys recent developments in the epistemology of modality.
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  26. Kripkenstein semanttista realismia vastaan.Jaakko Reinikainen - 2021 - Ajatus 78 (11):187-219.
    Artikkeli käsittelee Saul Kripken Ludwig Wittgensteinin myöhemmistä töistä koostamaa merkityskeptistä haastetta, erityisesti niin kutsuttua äärellisyyden ongelmaa. Pääargumentti on, että skeptisen haasteen pääasiallinen vastaaja, semanttinen dispositionalismi, ei uusimmistakaan yrityksistä huolimatta ole kyennyt ratkaisemaan äärettömyyden ongelmaa. Ratkaistakseen ongelman dispositionalistin tulisi selittää, kuinka on mahdollista, että äärellinen puhuja voisi omata disposition käyttää jotain termiä äärettömässä määrässä tapauksia määrätyllä tavalla. Monet dispositionalistit esittävät, että ratkaisu löytyy niin kutsutuista ceteris paribus -ehdoista, joita vastaan Martin Kusch on argumentoinut. Jatkan Kuschin kritiikkiä ja osoitan ceteris paribus -strategian (...)
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  27. Knowledge of objective modality.Margot Strohminger & Juhani Yli-Vakkuri - 2018 - Philosophical Studies 176 (5):1155-1175.
    The epistemology of modality has focused on metaphysical modality and, more recently, counterfactual conditionals. Knowledge of kinds of modality that are not metaphysical has so far gone largely unexplored. Yet other theoretically interesting kinds of modality, such as nomic, practical, and ‘easy’ possibility, are no less puzzling epistemologically. Could Clinton easily have won the 2016 presidential election—was it an easy possibility? Given that she didn’t in fact win the election, how, if at all, can we know whether she easily could (...)
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  28. Constitutive Rules and Internal Criticism of Assertion.Jaakko Reinikainen - 2023 - In Panu Raatikainen (ed.), _Essays in the Philosophy of Language._ Acta Philosophica Fennica Vol. 100. Helsinki: Societas Philosophica Fennica. pp. 301-315.
    Timothy Williamson famously argued that assertion is constituted either by the knowledge rule or some similar epistemic rule. If true, the proposal has important implications for criticism of assertions. If assertions are analogical to other rule-constituted kinds like games, we can criticize assertions either on external or internal grounds, depending on whether the criticism draws from the necessary norms of assertion or some contingent ones. More recently, authors like Goldberg and MacFarlane have argued against other theories of assertion on the (...)
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  29. Modal skepticism and counterfactual knowledge.Juhani Yli-Vakkuri - 2013 - Philosophical Studies 162 (3):605-623.
    Abstract Timothy Williamson has recently proposed to undermine modal skepticism by appealing to the reducibility of modal to counterfactual logic ( Reducibility ). Central to Williamson’s strategy is the claim that use of the same non-deductive mode of inference ( counterfactual development , or CD ) whereby we typically arrive at knowledge of counterfactuals suffices for arriving at knowledge of metaphysical necessity via Reducibility. Granting Reducibility, I ask whether the use of CD plays any essential role in a Reducibility-based reply (...)
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  30.  86
    A unified theory of risk.Jaakko Hirvelä & Niall J. Paterson - forthcoming - Philosophical Quarterly.
    A novel theory of comparative risk is developed and defended. Extant theories are criticized for failing the tests of extensional and formal adequacy. A unified diagnosis is proposed: extant theories consider risk to be a univariable function, but risk is a multivariate function. According to the theory proposed, which we call the unified theory of risk, the riskiness of a proposition is a function of both the proportion and the modal closeness of the possible worlds at which the proposition holds. (...)
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  31. Global safety: how to deal with necessary truths.Jaakko Hirvelä - 2019 - Synthese 196 (3):1167-1186.
    According to the safety condition, a subject knows that p only if she would believe that p only if p was true. The safety condition has been a very popular necessary condition for knowledge of late. However, it is well documented that the safety condition is trivially satisfied in cases where the subject believes in a necessary truth. This is for the simple reason that a necessary truth is true in all possible worlds, and therefore it is true in all (...)
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  32. Moderate Modal Skepticism.Margot Strohminger & Juhani Yli-Vakkuri - 2018 - In Matthew A. Benton, John Hawthorne & Dani Rabinowitz (eds.), Knowledge, Belief, and God: New Insights in Religious Epistemology. Oxford: Oxford University Press. pp. 302-321.
    This paper examines "moderate modal skepticism", a form of skepticism about metaphysical modality defended by Peter van Inwagen in order to blunt the force of certain modal arguments in the philosophy of religion. Van Inwagen’s argument for moderate modal skepticism assumes Yablo's (1993) influential world-based epistemology of possibility. We raise two problems for this epistemology of possibility, which undermine van Inwagen's argument. We then consider how one might motivate moderate modal skepticism by relying on a different epistemology of possibility, which (...)
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  33.  93
    Kripke against Kripkenstein.Jaakko Reinikainen - 2022 - Thought: A Journal of Philosophy 11 (4):241-248.
    What was Saul Kripke’s personal stance on the sceptical challenge that he famously attributed to Ludwig Wittgenstein? It will be argued that despite his statements to the contrary, we can, in fact, outline at least a rough sketch of Kripke’s own views on the challenge and its aftermath on the basis of the remarks he left in the text. In summary, Kripke (a) rejected the sceptical solution to the challenge and (b) leaned towards a non-sceptical primitivist solution. If this is (...)
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  34. Conditional and habitual analyses of disposition ascriptions.Juhani Yli-Vakkuri - 2010 - Philosophical Quarterly 60 (240):624-630.
    Michael Fara's ‘habitual analysis’ of disposition ascriptions is equivalent to a kind of ceteris paribus conditional analysis which has no evident advantage over Martin's well known and simpler analysis. I describe an unsatisfactory hypothetical response to Martin's challenge, which is lacking in just the same respect as the analysis considered by Martin; Fara's habitual analysis is equivalent to this hypothetical analysis. The feature of the habitual analysis that is responsible for this cannot be harmlessly excised, for the resulting analysis would (...)
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  35. Knowing Without Having The Competence to Do So.Jaakko Hirvelä - 2019 - Thought: A Journal of Philosophy 8 (2):110-118.
    According to all varieties of virtue reliabilism knowledge is always gained through the exercise of epistemic competences. These competences can be conceived as competences to form true beliefs, or as competences to know. I will present a short but decisive argument against the idea that knowledge is always gained through the exercise of competences to know. The competence to know isn’t necessary for gaining knowledge.
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  36. Making Meaning: A study in foundational semantics.Jaakko Reinikainen - 2024 - Dissertation, Tampere University
    This is a work in the philosophy of language and metasemantics. Its purpose is to help answer the question about how words acquire their meanings. The work is divided into two parts. The purpose of Part One is to defend the claim that, despite numerous attempts, the so-called Kripkenstein’s sceptical challenge, and especially the problem of finitude, has not been offered a successful straight solution. The purpose of Part Two is to critically examine Robert Brandom’s philosophy, which can be treated (...)
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  37. Causal and Explanatory Autonomy: Comments on Menzies and List.Ausonio Marras & Juhani Yli-Vakkuri - 2010 - In Graham Macdonald & Cynthia Macdonald (eds.), Emergence in mind. New York: Oxford University Press. pp. 129.
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  38. No safe Haven for the virtuous.Jaakko Hirvelä - 2020 - Episteme 17 (1):48-63.
    In order to deal with the problem caused by environmental luck some proponents of robust virtue epistemology have attempted to argue that in virtue of satisfying the ability condition one will satisfy the safety condition. Call this idea the entailment thesis. In this paper it will be argued that the arguments that have been laid down for the entailment thesis entail a wrong kind of safety condition, one that we do not have in mind when we require our beliefs to (...)
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  39. Is it Safe to Disagree?Jaakko Hirvelä - 2017 - Ratio 30 (3):305-321.
    This paper offers a new account of the epistemic significance of disagreement which is grounded in two assumptions; that knowledge is the norm of belief and, that the safety condition is a necessary condition for knowledge. These assumptions motivate a modal definition of epistemic peerhood, which is much easier to operate on than the more traditional definitions of epistemic peerhood. The modal account of the epistemic significance of disagreement yields plausible results regarding cases of disagreement. Furthermore, it is able to (...)
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  40. The Cake Theory of Credit.Jaakko Hirvelä & Maria Lasonen-Aarnio - 2021 - Philosophical Topics 49 (2):347-369.
    The notion of credit plays a central role in virtue epistemology and in the literature on moral worth. While virtue epistemologists and ethicists have devoted a significant amount of work to providing an account of creditable success, a unified theory of credit applicable to both epistemology and ethics, as well as a discussion of the general form it should take, are largely missing from the literature. Our goal is to lay out a theory of credit that seems to underlie much (...)
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  41. Williamson on Modality.Juhani Yli-Vakkuri & Mark McCullagh - 2016 - Canadian Journal of Philosophy 46 (4-5):453-851.
    This special issue of the Canadian Journal of Philosophy is dedicated to Timothy Williamson's work on modality. It consists of a new paper by Williamson followed by papers on Williamson's work on modality, with each followed by a reply by Williamson. -/- Contributors: Andrew Bacon, Kit Fine, Peter Fritz, Jeremy Goodman, John Hawthorne, Øystein Linnebo, Ted Sider, Robert Stalnaker, Meghan Sullivan, Gabriel Uzquiano, Barbara Vetter, Timothy Williamson, Juhani Yli-Vakkuri.
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  42. How to stay safe while extending the mind.Jaakko Hirvelä - 2020 - Synthese 197 (9):4065-4081.
    According to the extended mind thesis, cognitive processes are not confined to the nervous system but can extend beyond skin and skull to notebooks, iPhones, computers and such. The extended mind thesis is a metaphysical thesis about the material basis of our cognition. As such, whether the thesis is true can have implications for epistemological issues. Carter has recently argued that safety-based theories of knowledge are in tension with the extended mind hypothesis, since the safety condition implies that there is (...)
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  43. (1 other version)The Necessity of Mathematics.Juhani Yli‐Vakkuri & John Hawthorne - 2018 - Noûs 52 (3):549-577.
    Some have argued for a division of epistemic labor in which mathematicians supply truths and philosophers supply their necessity. We argue that this is wrong: mathematics is committed to its own necessity. Counterfactuals play a starring role.
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  44. Epistemicism and modality.Juhani Yli-Vakkuri - 2016 - Canadian Journal of Philosophy 46 (4-5):803-835.
    What kind of semantics should someone who accepts the epistemicist theory of vagueness defended in Timothy Williamson’s Vagueness (1994) give a definiteness operator? To impose some interesting constraints on acceptable answers to this question, I will assume that the object language also contains a metaphysical necessity operator and a metaphysical actuality operator. I will suggest that the answer is to be found by working within a three-dimensional model theory. I will provide sketches of two ways of extracting an epistemicist semantics (...)
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  45. Semantic externalism without thought experiments.Juhani Yli-Vakkuri - 2018 - Analysis (1):81-89.
    Externalism is the thesis that the contents of intentional states and speech acts are not determined by the way the subjects of those states or acts are internally. It is a widely accepted but not entirely uncontroversial thesis. Among such theses in philosophy, externalism is notable for owing the assent it commands almost entirely to thought experiments, especially to variants of Hilary Putnam's famous Twin Earth scenario. This paper presents a thought experiment-free argument for externalism. It shows that externalism is (...)
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  46. Narrow Content - Chapter 1.Juhani Yli-Vakkuri & John Hawthorne - 2018 - In Juhani Yli-Vakkuri & John Hawthorne (eds.), Narrow Content. Oxford, UK: Oxford University Press.
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  47. Operator arguments revisited.Juhani Yli-Vakkuri, John Hawthorne & Peter Fritz - 2019 - Philosophical Studies 176 (11):2933-2959.
    Certain passages in Kaplan’s ‘Demonstratives’ are often taken to show that non-vacuous sentential operators associated with a certain parameter of sentential truth require a corresponding relativism concerning assertoric contents: namely, their truth values also must vary with that parameter. Thus, for example, the non-vacuity of a temporal sentential operator ‘always’ would require some of its operands to have contents that have different truth values at different times. While making no claims about Kaplan’s intentions, we provide several reconstructions of how such (...)
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  48. The Supervenience Argument.Juhani Yli-Vakkuri & Ausonio Marras - 2008 - In Simone Gozzano & Francesco Orilia (eds.), Universals, Tropes and the Philosophy of Mind. Ontos Verlag. pp. 101-132.
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  49. Modal Epistemology.Juhani Yli-Vakkuri & John Hawthorne - manuscript
    Some central epistemological notions are expressed by sentential operators O that entail the possibility of knowledge in the sense that 'Op' entails 'It is possible to know that p'. We call these modal-epistemological notions. Using apriority and being in a position to know as case studies, we argue that the logics of modal epistemological notions are extremely weak. In particular, their logics are not normal and do not include any closure principles.
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  50. LF: a Foundational Higher-Order Logic.Zachary Goodsell & Juhani Yli-Vakkuri - manuscript
    This paper presents a new system of logic, LF, that is intended to be used as the foundation of the formalization of science. That is, deductive validity according to LF is to be used as the criterion for assessing what follows from the verdicts, hypotheses, or conjectures of any science. In work currently in progress, we argue for the unique suitability of LF for the formalization of logic, mathematics, syntax, and semantics. The present document specifies the language and rules of (...)
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