About this topic
Summary The epistemology of logic focuses on issues concerning the normative status of our beliefs about logical truth and logical validity. It seems that we know that certain claims are logically true and that certain arguments are logically valid. What explains this knowledge? This question is an instance of a more general question about what explains our knowledge of (apparent) a priori truths. It is also closely connected to issues in the epistemology of modality, since logical truths are necessarily true. A long tradition in the epistemology of logic has it that logical truths are analytic -- that is, "true in virtue of meaning". In the middle of the twentieth century, Quine challenged this view. He argued that logical and mathematical claims are empirical claims that can in principle be revised on empirical grounds. In recent years, there have been a number of different proposals put forward about our knowledge of logic. Some philosophers follow Quine in viewing logic as empirical. Other philosophers have tried to rehabilitate the analytic theory of our knowledge of logic. Still other philosophers have appealed to intuitions or rational seemings to explain our knowledge of logic.
Key works For Quine's critique of the analytic theory of logical knowledge, see Quine 1936 and Quine 1960Putnam 1968 argues that logic is empirically reviseable.  Haack 1996 discusses Quine's views, in the context of a discussion of alternative logics. BonJour 1998 presents a theory of a priori knowledge based on rational insight. Boghossian 2000 and Boghossian 2001 are part of a sequence of papers trying to rehabilitate the analytic theory of logical knowledge. See Wright 2001 and Wright 2004 for a discussion of the role of intuitions in logical knowledge. Also see the key works for "Deductive Reasoning".
Introductions Boghossian 2000 provides an opinionated introduction to views in the epistemology of logic. BonJour 1998 provides an in depth discussion of theories of the apriori that is highly relevant to the case of logical knowledge. Field 2005 discusses some recent debates concerning the a priori in general and logical and mathematical knowledge in particular.
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  1. On the Philosophical Motivations for the Logics of Formal Consistency and Inconsistency.Walter Carnielli & Rodrigues Abilio - manuscript
    We present a philosophical motivation for the logics of formal inconsistency, a family of paraconsistent logics whose distinctive feature is that of having resources for expressing the notion of consistency within the object language. We shall defend the view according to which logics of formal inconsistency are theories of logical consequence of normative and epistemic character. This approach not only allows us to make inferences in the presence of contradictions, but offers a philosophically acceptable account of paraconsistency.
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  2. On Logical and Scientific Strength.Luca Incurvati & Carlo Nicolai - manuscript
    The notion of strength has featured prominently in recent debates about abductivism in the epistemology of logic. Following Williamson and Russell, we distinguish between logical and scientific strength and discuss the limits of the characterizations they employ. We then suggest understanding logical strength in terms of interpretability strength and scientific strength as a special case of logical strength. We present applications of the resulting notions to comparisons between logics in the traditional sense and mathematical theories.
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  3. Ebert on Boghossian’s Template and Transmission Failure.Alessia Marabini & Luca Moretti - manuscript
    Boghossian (1996) has put forward an interesting explanation of how we can acquire logical knowledge via implicit definitions that makes use of a special template. Ebert (2005) has argued that the template is unserviceable, as it doesn't transmit warrant. In this paper, we defend the template. We first suggest that Jenkins (2008)’s response to Ebert fails because it focuses on doxastic rather than propositional warrant. We then reject Ebert’s objection by showing that it depends on an implausible and incoherent assumption.
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  4. God, Logic and Evolution.Jan-A. Riemersma - manuscript
  5. Justification Logic.Melvin Fitting - manuscript
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  6. Logical Inference and Its Dynamics.Carlotta Pavese - June 2016 - In Tamminga Allard, Willer Malte & Roy Olivier (eds.), Deontic Logic and Normative Systems. College Publications. pp. 203-219.
    This essay advances and develops a dynamic conception of inference rules and uses it to reexamine a long-standing problem about logical inference raised by Lewis Carroll’s regress.
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  7. Debunking Arguments: Mathematics, Logic, and Modal Security.Justin Clarke-Doane - forthcoming - In Robert Richards and Michael Ruse (ed.), The Cambridge Handbook of Evolutionary Ethics. Cambridge University Press.
    I discuss the structure of genealogical debunking arguments. I argue that they undermine our mathematical beliefs if they undermine our moral beliefs. The contrary appearance stems from a confusion of arithmetic truths with (first-order) logical truths, or from a confusion of reliability with justification. I conclude with a discussion of the cogency of debunking arguments, in light of the above. Their cogency depends on whether information can undermine all of our beliefs of a kind, F, without giving us direct reason (...)
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  8. Dogramaci’s Deflationism About Rationality.Jason A. DeWitt - forthcoming - Synthese:1-19.
    Just as Quine and others have argued for a deflationism about the property of truth, Sinan Dogramaci has argued for a deflationism about rationality. Specifically, Dogramaci claims that we have no reason to think that the basic, deductive, epistemic rules we call “rational” have any sort of “unifying property.” A “unifying property” is a property that is necessary, sufficient, and explanatorily illuminating. My goal in this paper is to undermine Dogramaci’s argument for this radical position. I do this by first (...)
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  9. Reasoning and Grasping Objects.Rea Golan - forthcoming - European Journal of Philosophy.
    European Journal of Philosophy, EarlyView.
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  10. Limits of Abductivism About Logic.Ulf Hlobil - forthcoming - Philosophy and Phenomenological Research.
    I argue against abductivism about logic, which is the view that rational theory choice in logic happens by abduction. Abduction cannot serve as a neutral arbiter in many foundational disputes in logic because, in order to use abduction, one must first identify the relevant data. Which data one deems relevant depends on what I call one's conception of logic. One's conception of logic is, however, not independent of one's views regarding many of the foundational disputes that one may hope to (...)
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  11. Belief, Inference, and the Self-Conscious Mind.Eric Marcus - forthcoming - Oxford University Press.
    It is impossible to hold patently contradictory beliefs in mind together at once. Why? Because we know that it is impossible for both to be true. This impossibility is a species of rational necessity, a phenomenon that uniquely characterizes the relation between one person's beliefs. Here, Eric Marcus argues that the unity of the rational mind—what makes it one mind—is what explains why, given what we already believe, we can't believe certain things and must believe certain others in this special (...)
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  12. Logical Theory Revision Through Data Underdetermination: An Anti-Exceptionalist Exercise.Sanderson Molick - forthcoming - Principia: An International Journal of Epistemology.
    The anti-exceptionalist debate brought into play the problem of what are the relevant data for logical theories and how such data affects the validities accepted by a logical theory. In the present paper, I depart from Laudan’s reticulated model of science to analyze one aspect of this problem, namely of the role of logical data within the process of revision of logical theories. For this, I argue that the ubiquitous nature of logical data is responsible for the proliferation of several (...)
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  13. Logical Ignorance and Logical Learning.Richard G. Pettigrew - forthcoming - Synthese:1-30.
    According to certain normative theories in epistemology, rationality requires us to be logically omniscient. Yet this prescription clashes with our ordinary judgments of rationality. How should we resolve this tension? In this paper, I focus particularly on the logical omniscience requirement in Bayesian epistemology. Building on a key insight by Ian Hacking (1967), I develop a version of Bayesianism that permits logical ignorance. This includes an account of the synchronic norms that govern a logically ignorant individual at any given time, (...)
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  14. Logic and Science: Science and Logic.Marcus Rossberg & Stewart Shapiro - forthcoming - Synthese:1-26.
    According to Ole Hjortland, Timothy Williamson, Graham Priest, and others, anti-exceptionalism about logic is the view that logic “isn’t special”, but is continuous with the sciences. Logic is revisable, and its truths are neither analytic nor a priori. And logical theories are revised on the same grounds as scientific theories are. What isn’t special, we argue, is anti-exceptionalism about logic. Anti-exceptionalists disagree with one another regarding what logic and, indeed, anti-exceptionalism are, and they are at odds with naturalist philosophers of (...)
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  15. Realism, Reliability, and Epistemic Possibility: On Modally Interpreting the Benacerraf–Field Challenge.Brett Topey - forthcoming - Synthese:1-22.
    A Benacerraf–Field challenge is an argument intended to show that common realist theories of a given domain are untenable: such theories make it impossible to explain how we’ve arrived at the truth in that domain, and insofar as a theory makes our reliability in a domain inexplicable, we must either reject that theory or give up the relevant beliefs. But there’s no consensus about what would count here as a satisfactory explanation of our reliability. It’s sometimes suggested that giving such (...)
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  16. Against Logical Generalism.Nicole Wyatt & Gillman Payette - forthcoming - Synthese:1-18.
    The orthodox view of logic takes for granted the central importance of logical principles. Logic, and thus logical reasoning, is to be understood as a system of rules or principles with universal application. Let us call this orthodox view logical generalism. In this paper we argue that logical generalism, whether monist or pluralist, is wrong. We then outline an account of logical consequence in the absence of general logical principles, which we call logical particularism.
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  17. Are Rules of Inference Superfluous? Wittgenstein Vs. Frege and Russell.Gilad Nir - 2021 - Teorema: International Journal of Philosophy 40 (2):45-61.
    In Tractatus 5.132 Wittgenstein argues that inferential justification depends solely on the understanding of the premises and conclusion, and is not mediated by any further act. On this basis he argues that Frege’s and Russell’s rules of inference are “senseless” and “superfluous”. This line of argument is puzzling, since it is unclear that there could be any viable account of inference according to which no such mediation takes place. I show that Wittgenstein’s rejection of rules of inference can be motivated (...)
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  18. Arithmetic, Logicism, and Frege’s Definitions.Timothy Perrine - 2021 - International Philosophical Quarterly 61 (1):5-25.
    This paper describes both an exegetical puzzle that lies at the heart of Frege’s writings—how to reconcile his logicism with his definitions and claims about his definitions—and two interpretations that try to resolve that puzzle, what I call the “explicative interpretation” and the “analysis interpretation.” This paper defends the explicative interpretation primarily by criticizing the most careful and sophisticated defenses of the analysis interpretation, those given my Michael Dummett and Patricia Blanchette. Specifically, I argue that Frege’s text either are inconsistent (...)
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  19. Non-Boolean Classical Relevant Logics II: Classicality Through Truth-Constants.Tore Fjetland Øgaard - 2021 - Synthese:1-33.
    This paper gives an account of Anderson and Belnap’s selection criteria for an adequate theory of entailment. The criteria are grouped into three categories: criteria pertaining to modality, those pertaining to relevance, and those related to expressive strength. The leitmotif of both this paper and its prequel is the relevant legitimacy of disjunctive syllogism. Relevant logics are commonly held to be paraconsistent logics. It is shown in this paper, however, that both E and R can be extended to explosive logics (...)
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  20. On the Very Idea of Choosing a Logic: The Role of the Background Logic.Jonas R. B. Arenhart & Sanderson Molick - 2020 - In Alexandre Costa-Leite (ed.), Abstract Consequence and Logics - Essays in Honor of Edélcio G. de Souza. London, UK: College Publications. pp. 267-286.
    Logical anti-exceptionalism is the view that logic is not special among the sciences. In particular, anti-exceptionalists claim that logical theory choice is effected on the same bases as any other theory choice procedure, i.e., by abduction, by weighting pros and cons of rival views, and by judging which theory scores best on a given set of parameters. In this paper, we first present the anti-exceptionalists favourite method for logical theory choice. After spotting on important features of the method, we discuss (...)
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  21. Composition of Deductions Within the Propositions-As-Types Paradigm.Ivo Pezlar - 2020 - Logica Universalis (4):1-13.
    Kosta Došen argued in his papers Inferential Semantics (in Wansing, H. (ed.) Dag Prawitz on Proofs and Meaning, pp. 147–162. Springer, Berlin 2015) and On the Paths of Categories (in Piecha, T., Schroeder-Heister, P. (eds.) Advances in Proof-Theoretic Semantics, pp. 65–77. Springer, Cham 2016) that the propositions-as-types paradigm is less suited for general proof theory because—unlike proof theory based on category theory—it emphasizes categorical proofs over hypothetical inferences. One specific instance of this, Došen points out, is that the Curry–Howard isomorphism (...)
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  22. The Placeholder View of Assumptions and the Curry–Howard Correspondence.Ivo Pezlar - 2020 - Synthese:1-17.
    Proofs from assumptions are amongst the most fundamental reasoning techniques. Yet the precise nature of assumptions is still an open topic. One of the most prominent conceptions is the placeholder view of assumptions generally associated with natural deduction for intuitionistic propositional logic. It views assumptions essentially as holes in proofs, either to be filled with closed proofs of the corresponding propositions via substitution or withdrawn as a side effect of some rule, thus in effect making them an auxiliary notion subservient (...)
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  23. Knowledge of Logical Generality and the Possibility of Deductive Reasoning.Corine Besson - 2019 - In Timothy Chan & Anders Nes (eds.), Inference and consciousness. Routledge Studies in Contemporary Philosophy. New York, USA: Routledge. pp. 172-196.
    I address a type of circularity threat that arises for the view that we employ general basic logical principles in deductive reasoning. This type of threat has been used to argue that whatever knowing such principles is, it cannot be a fully cognitive or propositional state, otherwise deductive reasoning would not be possible. I look at two versions of the circularity threat and answer them in a way that both challenges the view that we need to apply general logical principles (...)
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  24. Logical Expressivism and Carroll’s Regress.Corine Besson - 2019 - Royal Institute of Philosophy Supplement 86:35-62.
    In this paper, I address a key argument in favour of logical expressivism, the view that knowing a logical principle such as Modus Ponens is not a cognitive state but a pro-attitude towards drawing certain types of conclusions from certain types of premises. The argument is that logical expressivism is the only view that can take us out of Lewis Carroll's Regress – which suggests that elementary deductive reasoning is impossible. I show that the argument does not hold scrutiny and (...)
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  25. Cogency and Context.Cesare Cozzo - 2019 - Topoi 38 (3):505-516.
    The problem I address is: how are cogent inferences possible? In § 1 I distinguish three senses in which we say that one is “compelled” by an inference: automatic, seductive-rhetorical and epistemic compulsion. Cogency is epistemic compulsion: a cogent inference compels us to accept its conclusion, if we accept its premises and we aim at truth. In §§ 2–3 I argue that cogency is intelligible if we consider an inference as a compound linguistic act in which several component acts are (...)
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  26. The Adoption Problem and Anti-Exceptionalism About Logic.Suki Finn - 2019 - Australasian Journal of Logic 16 (7):231.
    Anti-exceptionalism about logic takes logic to be, as the name suggests, unexceptional. Rather, in naturalist fashion, the anti-exceptionalist takes logic to be continuous with science, and considers logical theories to be adoptable and revisable accordingly. On the other hand, the Adoption Problem aims to show that there is something special about logic that sets it apart from scientific theories, such that it cannot be adopted in the way the anti-exceptionalist proposes. In this paper I assess the damage the Adoption Problem (...)
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  27. Soames on the Logical Empiricists on Truth, Meaning, Convention, and Logical Truth.Mario Gómez-Torrente - 2019 - Philosophical Studies 176 (5):1357-1365.
    In the first part of this paper, I express doubts that Tarski and Carnap were guilty of some confusions about the relations between truth and meaning, attributed to them by Soames. In the second part, I consider Quine's Carrollian argument against conventionalism about logical truth, discussed only briefly and approvingly by Soames, and I explore the question whether some not obviously incorrect forms of conventionalism about logical truth, such as what I call "finitary conventionalism", are immune to Quine's argument.
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  28. Following Logical Realism Where It Leads.Michaela McSweeney - 2019 - Philosophical Studies 176 (1):117-139.
    Logical realism is the view that there is logical structure in the world. I argue that, if logical realism is true, then we are deeply ignorant of that logical structure: either we can’t know which of our logical concepts accurately capture it, or none of our logical concepts accurately capture it at all. I don’t suggest abandoning logical realism, but instead discuss how realists should adjust their methodology in the face of this ignorance.
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  29. Braucht die Logik Objekte? Die Ontologie logischer Gegenstände im Tractatus und Erfahrung und Urteil.Miguel Ohnesorge - 2019 - Bulletin D’Analyse Phénoménologique 15 (2):1-32.
    Ludwig Wittgenstein’s Tractatus logico-philosophicus and Edmund Husserl’s Experience and Judgement (Erfahrung und Urteil) are based on remarkably different conceptual frameworks and methodologies. After analyzing their respective accounts on the foundations of (formal) logic, I map out their common aims and different conclusions. I hold that Husserl and Wittgenstein both use the epistemic necessity of the existence of logical relations among things as an argument against philosophical scepticism, but their different epistemological convictions lead them to decisively diverging accounts of the nature (...)
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  30. Naturalizing Logic: A Case Study of the Ad Hominem and Implicit Bias.Madeleine Ransom - 2019 - In Dov Gabbay, Lorenzo Magnani, Woosuk Park & Ahti-Veikko Pietarinen (eds.), Natural Arguments: A Tribute to John Woods. London: College Publications. pp. 575-589.
    The fallacies, as traditionally conceived, are wrong ways of reasoning that nevertheless appear attractive to us. Recently, however, Woods (2013) has argued that they don’t merit such a title, and that what we take to be fallacies are instead largely virtuous forms of reasoning. This reformation of the fallacies forms part of Woods’ larger project to naturalize logic. In this paper I will look to his analysis of the argumentum ad hominem as a case study for the prospects of this (...)
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  31. Deviance and Vice: Strength as a Theoretical Virtue in the Epistemology of Logic.Gillian Russell - 2019 - Philosophy and Phenomenological Research 99 (3):548-563.
    This paper is about the putative theoretical virtue of strength, as it might be used in abductive arguments to the correct logic in the epistemology of logic. It argues for three theses. The first is that the well-defined property of logical strength is neither a virtue nor a vice, so that logically weaker theories are not—all other things being equal—worse or better theories than logically stronger ones. The second thesis is that logical strength does not entail the looser characteristic of (...)
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  32. Small Steps and Great Leaps in Thought: The Epistemology of Basic Deductive Rules.Joshua Schechter - 2019 - In Magdalena Balcerak Jackson & Brendan Balcerak Jackson (eds.), Reasoning: New Essays on Theoretical and Practical Thinking. Oxford: Oxford University Press.
    We are justified in employing the rule of inference Modus Ponens (or one much like it) as basic in our reasoning. By contrast, we are not justified in employing a rule of inference that permits inferring to some difficult mathematical theorem from the relevant axioms in a single step. Such an inferential step is intuitively “too large” to count as justified. What accounts for this difference? In this paper, I canvass several possible explanations. I argue that the most promising approach (...)
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  33. Priest’s Anti-Exceptionalism, Candrakīrti and Paraconsistency.Koji Tanaka - 2019 - In Can Başkent & Thomas Macaulay Ferguson (eds.), Graham Priest on Dialetheism and Paraconsistency. Dordrecht: Springer Verlag. pp. 127-138.
    Priest holds anti-exceptionalism about logic. That is, he holds that logic, as a theory, does not have any exceptional status in relation to the theories of empirical sciences. Crucial to Priest’s anti-exceptionalism is the existence of ‘data’ that can force the revision of logical theory. He claims that classical logic is inadequate to the available data and, thus, needs to be revised. But what kind of data can overturn classical logic? Priest claims that the data is our intuitions about the (...)
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  34. Linguistic Convention and Worldly Fact: Prospects for a Naturalist Theory of the a Priori.Brett Topey - 2019 - Philosophical Studies 176 (7):1725-1752.
    Truth by convention, once thought to be the foundation of a uniquely promising approach to explaining our access to the truth in nonempirical domains, is nowadays widely considered an absurdity. Its fall from grace has been due largely to the influence of an argument that can be sketched as follows: our linguistic conventions have the power to make it the case that a sentence expresses a particular proposition, but they can’t by themselves generate truth; whether a given proposition is true—and (...)
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  35. Against Reflective Equilibrium for Logical Theorizing.Jack Woods - 2019 - Australasian Journal of Logic 16 (7):319.
    I distinguish two ways of developing anti-exceptionalist approaches to logical revision. The first emphasizes comparing the theoretical virtuousness of developed bodies of logical theories, such as classical and intuitionistic logic. I'll call this whole theory comparison. The second attempts local repairs to problematic bits of our logical theories, such as dropping excluded middle to deal with intuitions about vagueness. I'll call this the piecemeal approach. I then briefly discuss a problem I've developed elsewhere for comparisons of logical theories. Essentially, the (...)
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  36. Logical Partisanhood.Jack Woods - 2019 - Philosophical Studies 176 (5):1203-1224.
    A natural suggestion and increasingly popular account of how to revise our logical beliefs treats revision of logic analogously to the revision of scientific theories. I investigate this approach and argue that simple applications of abductive methodology to logic result in revision-cycles, developing a detailed case study of an actual dispute with this property. This is problematic if we take abductive methodology to provide justification for revising our logical framework. I then generalize the case study, pointing to similarities with more (...)
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  37. The Self-Effacement Gambit.Jack Woods - 2019 - Res Philosophica 96 (2):113-139.
    Philosophical arguments usually are and nearly always should be abductive. Across many areas, philosophers are starting to recognize that often the best we can do in theorizing some phenomena is put forward our best overall account of it, warts and all. This is especially true in esoteric areas like logic, aesthetics, mathematics, and morality where the data to be explained is often based in our stubborn intuitions. -/- While this methodological shift is welcome, it's not without problems. Abductive arguments involve (...)
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  38. Why Does Aristotle Defend the Principle of Non‐Contradiction Against its Contrary?Daniel Coren - 2018 - Philosophical Forum 49 (1):39-59.
    In his Metaphysics Γ.4, Aristotle defends the principle of non-contradiction (PNC). The PNC says that all contradictions are false. So if some contradictions are true, then PNC is false. Even if PNC’s contrary is false, PNC’s contradictory might still be true. But it’s been noted in the literature for over a century that Aristotle seems to be exclusively interested in attacking PNC’s contrary (‘All contradictions are true’) rather than PNC’s contradictory (‘Some contradictions are true’). So his defense of PNC seems (...)
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  39. Logical Normativity and Rational Agency—Reassessing Locke's Relation to Logic.Huaping Lu-Adler - 2018 - Journal of the History of Philosophy 56 (1):75-99.
    There is an exegetical quandary when it comes to interpreting Locke's relation to logic.On the one hand, over the last few decades a substantive amount of literature has been dedicated to explaining Locke's crucial role in the development of a new logic in the seventeenth and eighteenth centuries. John Yolton names this new logic the "logic of ideas," while James Buickerood calls it "facultative logic."1 Either way, Locke's Essay is supposedly its "most outspoken specimen" or "culmination."2 Call this reading the (...)
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  40. Skeptics and Unruly Connectives: A Defence of and Amendment to the Non-Factualist Justification of Logic.Oliver Oxton - 2018 - Dissertation, University of Waterloo
    This thesis attempts to positively solve three problems in the foundations of logic. If logical connectives are defined by their introduction and elimination rules, then how might one prohibit the construction of dysfunctional rules, i.e. rules which let us infer anything from anything else? How might one be held accountable to the consequences of those logical rules that they accept in an argument? And, how might one who, for whatever reason, doubts those logical rules regularly taken for granted, be convinced (...)
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  41. Laws of Thought and Laws of Logic After Kant.Lydia Patton - 2018 - In Sandra Lapointe (ed.), Logic from Kant to Russell. New York: Routledge. pp. 123-137.
    George Boole emerged from the British tradition of the “New Analytic”, known for the view that the laws of logic are laws of thought. Logicians in the New Analytic tradition were influenced by the work of Immanuel Kant, and by the German logicians Wilhelm Traugott Krug and Wilhelm Esser, among others. In his 1854 work An Investigation of the Laws of Thought on Which are Founded the Mathematical Theories of Logic and Probabilities, Boole argues that the laws of thought acquire (...)
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  42. Is There a Reliability Challenge for Logic?Joshua Schechter - 2018 - Philosophical Issues 28 (1):325-347.
    There are many domains about which we think we are reliable. When there is prima facie reason to believe that there is no satisfying explanation of our reliability about a domain given our background views about the world, this generates a challenge to our reliability about the domain or to our background views. This is what is often called the reliability challenge for the domain. In previous work, I discussed the reliability challenges for logic and for deductive inference. I argued (...)
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  43. Intertranslatability, Theoretical Equivalence, and Perversion.Jack Woods - 2018 - Thought: A Journal of Philosophy 7 (1):58-68.
    I investigate syntactic notions of theoretical equivalence between logical theories and a recent objection thereto. I show that this recent criticism of syntactic accounts, as extensionally inadequate, is unwarranted by developing an account which is plausibly extensionally adequate and more philosophically motivated. This is important for recent anti-exceptionalist treatments of logic since syntactic accounts require less theoretical baggage than semantic accounts.
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  44. Logical Particularism.Nicole Wyatt & Gillman Payette - 2018 - In Jeremy Wyatt, Nikolaj J. L. L. Pedersen & Nathan Kellen (eds.), Pluralisms in Truth and Logic. Palgrave Macmillan. pp. 277-299.
    Logics—that is to say logical systems—are generally conceived of as describing the logical forms of arguments as well as endorsing cer- tain principles or rules of inference specified in terms of these forms. From this perspective, a correct logic is a system which captures only (and perhaps all) of the correct principles, and good—i.e. logical— reasoning is reasoning which at the level of logical form conforms to the principles of a correct logic. In contrast, as logical particularists we reject the (...)
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  45. How Do Logics Explain?Nicole Wyatt & Gillman Payette - 2018 - Australasian Journal of Philosophy 96 (1):157-167.
    Anti-exceptionalists about logic maintain that it is continuous with the empirical sciences. Taking anti-exceptionalism for granted, we argue that traditional approaches to explanation are inadequate in the case of logic. We argue that Andrea Woody's functional analysis of explanation is a better fit with logical practice and accounts better for the explanatory role of logical theories.
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  46. Why Is a Valid Inference a Good Inference?Sinan Dogramaci - 2017 - Philosophy and Phenomenological Research 94 (1):61-96.
    True beliefs and truth-preserving inferences are, in some sense, good beliefs and good inferences. When an inference is valid though, it is not merely truth-preserving, but truth-preserving in all cases. This motivates my question: I consider a Modus Ponens inference, and I ask what its validity in particular contributes to the explanation of why the inference is, in any sense, a good inference. I consider the question under three different definitions of ‘case’, and hence of ‘validity’: the orthodox definition given (...)
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  47. Epistemic Utility and the Normativity of Logic.Richard Pettigrew - 2017 - Logos and Episteme 8 (4):455-492.
    How does logic relate to rational belief? Is logic normative for belief, as some say? What, if anything, do facts about logical consequence tell us about norms of doxastic rationality? In this paper, we consider a range of putative logic-rationality bridge principles. These purport to relate facts about logical consequence to norms that govern the rationality of our beliefs and credences. To investigate these principles, we deploy a novel approach, namely, epistemic utility theory. That is, we assume that doxastic attitudes (...)
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  48. Intuition et lois logiques.Patrice Philie - 2017 - Philosophiques 44 (1):73-83.
    PATRICE PHILIE | : Cet article a pour objectif d’examiner le rôle des intuitions dans le cadre du problème de la justification des lois logiques de base. Une revue des différentes conceptions de l’intuition permet de mettre les choses en place et d’identifier la conception qui convient le mieux au problème — c’est une conception modale qui sera retenue. Je soumettrai ensuite cette conception à un examen critique, lequel se fera en deux temps. D’une part, il s’agira de montrer la (...)
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  49. Is ‘No’ a Force-Indicator? Yes, Sooner or Later!Fabien Schang & James Trafford - 2017 - Logica Universalis 11 (2):225-251.
    This paper discusses the philosophical and logical motivations for rejectivism, primarily by considering a dialogical approach to logic, which is formalized in a Question–Answer Semantics. We develop a generalized account of rejectivism through close consideration of Mark Textor's arguments against rejectivism that the negative expression ‘No’ is never used as an act of rejection and is equivalent with a negative sentence. In doing so, we also shed light upon well-known issues regarding the supposed non-embeddability and non-iterability of force indicators.
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  50. Inferentialism.Florian Steinberger & Julien Murzi - 2017 - In Blackwell Companion to Philosophy of Language. Wiley Blackwell. pp. 197-224.
    This article offers an overview of inferential role semantics. We aim to provide a map of the terrain as well as challenging some of the inferentialist’s standard commitments. We begin by introducing inferentialism and placing it into the wider context of contemporary philosophy of language. §2 focuses on what is standardly considered both the most important test case for and the most natural application of inferential role semantics: the case of the logical constants. We discuss some of the (alleged) benefits (...)
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