EPISTEMOLOGY EXTENDED

A common presupposition in epistemology is that the processes contributing to the generation of knowledge do not extend beyond the knower's skin. This paper challenges this presupposition. I adduce a novel kind case that causes trouble for a number of even the most promising accounts of knowledge in current literature (virtue epistemological and modal accounts), at least so long as the presupposition is in place. I then look at a couple of recent accounts of knowledge that drop the presupposition and expressly allow the relevant processes to extended beyond the knower's skin. While these accounts can handle the problem case, they encounter difficulties elsewhere: extension occurs too easily and so the accounts predict knowledge where they ought not. Finally, I offer a novel way of extending epistemology and argue that it can steer clear of the problems on both sides.     

Presupposition Failure and the Assertive Enterprise

I outline a discourse-based account of presuppositions that relies on insights from the writings of Peter Strawson, as well as on insights from more recent work by Robert Stalnaker and Barbara Abbott. One of the key elements of my account is the idea that presuppositions are “assertorically inert”, in the sense that they are background propositions, rather than being part of the “at issue” or asserted content. Strawson is often assumed to have defended the view that the falsity of a presupposition leads to catastrophe, in the sense that a false presupposition “wrecks the assertive enterprise”. I argue that the discourse-based account in terms of assertoric inertia can explain how cases of presupposition failure can sometimes be non-catastrophic; there are cases in which the assertive enterprise operates smoothly, despite presupposition failure. The chief problem facing this line of argument is to account for cases in which presupposition failure is catastrophic. If presuppositions are assertorically inert, then how can their falsity ever wreck the assertive enterprise? I offer a principled account that delineates the circumstances in which false presuppositions are, and those in which they are not, catastrophic.     

Scientific Realism: Old and New Problems

Scientific realism is a doctrine that was both in and out of fashion several times during the twentieth century. I begin by noting three presuppositions of a succinct characterization of scientific realism offered initially by the foremost critic in the latter part of the century, Bas van Fraassen. The first presupposition is that there is a fundamental distinction to be made between what is “empirical” and what is “theoretical”. The second presupposition is that a genuine scientific realism is committed to their being “a literally true story of what the world is like”. The third presupposition is that there are methods for justifying a belief in the empirical adequacy of a theory which do not also suffice to justify beliefs in its literal truth. Each of these presuppositions raises a number of problems, some of which are quite old and others rather newer. In each case, I briefly review some of the old problems and then elaborate the newer problems.     

Accommodating Presuppositions

In this paper I elaborate on previous criticisms of the influential Stalnakerian account of presuppositions, pointing out that the well-known practice of informative presupposition puts heavy strain on Stalnaker’s pragmatic characterization of the phenomenon of presupposition, in particular of the triggering of presuppositions. Stalnaker has replied to previous criticisms by relying on the well-taken point that we should take into account the time at which presupposition-requirements are to be computed. In defense of a different, ‘semantic’ (in a sense) account of the phenomenon of presupposition, I argue that that point does not suffice to rescue the Stalnakerian proposal, and I portray Lewisian ‘accommodation’ as one way in which speakers adjust themselves to one another in the course of conversation.     

Knowledge,Presupposition, and Pragmatic Implicature

It is widely accepted that knowledge is factive, but two different understandings of ＂factivity＂ should be distinguished, namely, the implication version and the presupposition version. While the former only takes the truth of P as a necessary requirement for ＂S knows that P,＂ the latter considers it also necessary for ＂S does not know that P.＂ In this paper, I argue against presupposition and defend implication. More specifically, I argue against Wang and Tai＇s defense of the presupposition version as presented in a recent paper and propose a pragmatic response to the ＂persistence problem＂ of implication. In other words, my positive proposal is an account of implication plus pragmatic implicature. To conclude, I use my version to analyze Wang and Tai＇s distinction between inner skepticism and outer skepticism. My conclusion is that, after abandoning presupposition, we can identify two types of intermediate skepticism between Wang and Tai＇s inner and outer skepticism.     

语义预设的合理性辩护

弗雷格是第一个注意到命题的预设为假会影响到命题真值判定的哲学家。对这种因预设为假而形成的真值空隙,弗雷格、罗素和斯特劳森提出了不同的处理方式,由此奠定了预设的语义解释的基础。但预设的语义解释一直面临着种种质疑。这些质疑有说服力吗?应该放弃预设的语义解释吗?本文将对此进行分析,揭示这些质疑中所存在的问题,从而对预设的语义解释的合理性进行辩护。一、预设为假与真值空隙第一个把预设作为逻辑概念加以讨论的哲学家是弗雷格,其预设思想可以归纳为四点:第一,预     

“The king of France is bald” reconsidered: a case against Yablo

Stephen Yablo has argued for metaontological antirealism: he believes that the sentences claiming or denying the existence of numbers (or other abstract entities or mereological sums) are inapt for truth valuation, because the reference failure of a numerical singular term (or a singular term for an abstract entity or a mereological sum) would not produce a truth value gap in any sentence containing that term. At the same time, Yablo believes that nothing similar applies to singular terms that aim to refer to an entity whose existence or non-existence is a factual matter, e.g. ‘the king of France’: the failure of the presupposition that there is a unique French king makes some sentences with the term ‘the king of France’, in particular “The king of France is bald”, gappy. In this paper I will show that the sentence “The king of France is bald” must be false, and not gappy, according to Yablo’s own criteria and that, furthermore, the presupposition that the term ‘the king of France’ refers presents a fail-safe mechanism in the same way Yablo thinks abstract presuppositions do—this undermines his argument for metaontological antirealism.     

‘Ought Implies Can’: Not So Pragmatic After All

Those who want to deny the ‘ought implies can’ principle often turn to weakened views to explain ‘ought implies can’ phenomena. The two most common versions of such views are (a) that ‘ought’ presupposes ‘can’, and (b) that ‘ought’ conversationally implicates ‘can’. This paper will reject both views, and in doing so, present a case against any pragmatic view of ‘ought implies can’. Unlike much of the literature, I won't rely on counterexamples, but instead will argue that each of these views fails on its own terms. ‘Ought’ and ‘can’ do not obey the negation test for presupposition, and they do not obey the calculability or the cancelability tests for conversational implicature. I diagnose these failures as partly a result of the importance of the contrapositive of ‘ought implies can’. I end with a final argument emphasizing the role the principle plays in moral thinking, and the fact that no pragmatic account can do it justice.     

Presupposition Projection and Conditionalization

I explain what exactly constrains presupposition projection in compound sentences and argue that the presuppositions that do not project are conditionalized, giving rise to inferable conditional presuppositions. I combine elements of (Gazdar in Pragmatics: implicature, presupposition, and logical form. Academic Press, New York 1979) and (van der Sandt in Context and presupposition. Croom Helm, London 1988) which, together with an additional, independently motivated assumption, make it possible to construct an analysis that makes correct predictions. The core of my proposal is as follows: When a speaker felicitously utters a compound sentence whose constituent clauses (considered in isolation) require presuppositions, the hearer will infer that the speaker presupposes those propositions, unless the sentence contains some element that makes the hearer realize that, if the speaker actually presupposed them, she would be either uninformative or inconsistent in her beliefs. In these cases, the propositions that would have been presupposed, had the clauses been uttered in isolation, will not be presupposed, i.e. the clausal presuppositions will not project.     

Questions,Presuppositions and Fallacies

In this paper I focus on the fallacy known as Complex Question or Many Questions. After a brief introduction, in Sect. 2 I highlight its pragmatic dimension, and in Sect. 3 its dialectical dimension. In Sect. 4 I present two accounts of this fallacy developed in argumentation theory, Douglas Walton’s and the Pragma-Dialectics’, which have resources to capture both its pragmatic and its dialectical nature. However, these accounts are unsatisfactory for various reasons. In Sect. 5 I focus on the pragmatic dimension of the fallacy and I suggest amendments to the accounts mentioned drawing on the study of the phenomenon of presupposition in theoretical pragmatics. I argue that the central notion in the definition of the fallacy is that of an informative presupposition. In Sect. 6 I focus on the dialectical dimension of the fallacy. This dimension needs to be explicitly acknowledged in the definition of the fallacy in order to distinguish it from a different, non-dialectical, fallacious argumentative move involving presuppositions.

     

Presupposition and Accommodation: Understanding the Stalnakerian Picture

This paper offers a critical analysis ofStalnaker's work on presupposition (Stalnaker1973, 1974, 1979, 1999, 2002). The paperexamines two definitions of speakerpresupposition offered by Stalnaker – the familiar common ground view, and the earlier,less familiar, dispositional account – and howStalnaker relates this notion to the linguisticphenomenon of presupposition. Special attentionis paid to Stalnaker's view of accommodation. Iargue that given Stalnakers views,accommodation is not rightly seen as driven bythe presuppositional requirements ofutterances, but only by the interests ofspeakers in eliminating perceived differencesamong presuppositions. I also consider therevisions which are needed either to thedefinition of speaker presupposition or to thedefinition of sentence presupposition in lightof the possibility of informativepresupposition. In the concluding section, Idiscuss the ways in which some recent accountsof context and speaker presupposition departfrom their Stalnakerian foundations.     

FOREKNOWLEDGE, FREEDOM, AND OBLIGATION

Abstract: A vital presupposition of an influential argument for the incompatibility of divine foreknowledge and libertarian free action is that free action requires alternative possibilities. A recent, noteworthy challenge to this presupposition invokes a “Divine Frankfurt‐type example”: God's foreknowledge of one's future actions prevents one from doing otherwise without having any responsibility‐undermining effect on one's actions. First, I explain why features of God's omniscience cast doubt on this Frankfurtian response. Second, even if this appraisal is mistaken, I argue that divine foreknowledge is irreconcilable with moral obligation if such foreknowledge eliminates alternatives.     

The externalist challenge to conceptual engineering

Unlike conceptual analysis, conceptual engineering does not aim to identify the content that our current concepts do have, but the content which these concepts should have. For this method to show the results that its practitioners typically aim for, being able to change meanings seems to be a crucial presupposition. However, certain branches of semantic externalism raise doubts about whether this presupposition can be met. To the extent that meanings are determined by external factors such as causal histories or microphysical structures, it seems that they cannot be changed intentionally. This paper gives an extended discussion of this ‘externalist challenge’. Pace Herman Cappelen’s recent take on this issue, it argues that the viability of conceptual engineering crucially depends on our ability to bring about meaning change. Furthermore, it argues that, contrary to first appearance, causal theories of reference do allow for a sufficient degree of meaning control. To this purpose, it argues that there is a sense of what is called ‘collective long-range control’, and that popular versions of the causal theory of reference imply that people have this kind of control over meanings.

     

Existence,presupposition and anaphoric space

The following paper deals with the notion of existence, especially as concerns natural languages. In Section 1, starting from some quite obvious examples drawn from logic, I sketch the problem of the existential presupposition usually ascribed to noun phrases. My opinion is that the point of view frequently adopted in this case is unduly restrictive, for the existence which is believed to be presupposed here is actual existence. Accordingly, I emphasize the need for having a weaker notion of existential presupposition, such that the existence (if this word can still be used) here referred to is relevant only to linguistic goals. Section 2 sketches this notion, by assimilating existence (in the weak sense) to identification in a linguistic space. (I deal here only with intuitive considerations: a more formal account will be given, I hope, in another paper.) Finally, in Section 3, the notion of actual existence is examined by contrast with the linguistic (or weak) notion of existence: and this is a question which of course can't be tackled in terms of a purely linguistic analysis, for it needs a general, epistemo-logical approach.     

Kant's Account of Nature's Systematicity and the Unity of Theoretical and Practical Reason1

In this paper I argue that if one is to do justice to reason's unity in Kant, then one must acknowledge that reason's practical ends are presupposed in every theoretical investigation of nature. Thus, contrary to some other commentators, I contend that the notion of the metaphysical ground of the unity of nature should not be attributed to the “dynamics of reason” and its “own practical purposes.” Instead, the metaphysical ground of the unity of nature is in fact an indispensable and necessary notion for reason in both its theoretical and practical functions, but this need of reason to presuppose such a notion can only find its adequate proof in the practical. By offering a synopsis of Kant's accounts of nature's systematicity in the Transcendental Ideal of the Critique of Pure Reason (Part I), the Appendix to the Dialectic of the Critique of Pure Reason (Part II), and in the Critique of Judgment (Part III), I identify in each section Kant's theoretical and practical arguments for reason's presupposition of the “unconditioned,” demonstrate their structural interdependence, and show a general continuity in Kant's position on this issue throughout his critical system.     

Life-Prolonging Killings and their Relevance to Ethics

What makes killing morally wrong? And what makes killing morally worse than letting die? Standard answers to these two questions presuppose that killing someone involves shortening that person's life. Yet, as I argue in the first two sections of this article, this presupposition is false: Life-prolonging killings are conceivable. In the last two sections of the article, I explore the significance of the conceivability of such killings for various discussions of the two questions just mentioned. In particular, I show why the conceivability of life-prolonging killings renders Frances M. Kamm's attempt to provide an answer to the second question problematic.     

Presuppositions and Quantifier Domains

In this paper, I will argue for a new account of presuppositions which is based on double indexing as well as minimal representational contexts providing antecedent material for anaphoric presuppositions, rather than notions of context defined in terms of the interlocutors’ pragmatic presuppositions or the information accumulated from the preceding discourse. This account applies in particular to new phenomena concerning the presupposition of quantifier domains. But it is also intended to be an account of presuppositions in general. The account differs from the Satisfaction Theory and the Binding Theory of presuppositions in that it can be viewed as a conservative extension of traditional static semantics and in that it does not involve the notion of pragmatic presupposition.     

Syntactic presupposition in sentence comprehension

Two experiments investigated the role of syntactic presupposition in sentence comprehension. In Experiment I subjects verified cleft, pseudocleft and factive complement sentences with respect to preceding context paragraphs, which contradicted either the assertion or the presupposition of the target sentence. Subjects took significantly longer to verify sentences with false presuppositions than sentences with false assertions. In Experiment II subjects verified cleft and pseudocleft sentences with respect to subsequently presented pictures. Once again, verification times for sentences with false presuppositions were significantly longer than verification times for sentences with false assertions. It was argued that these findings are more adequately explained by a “structural” hypothesis, than in terms of strategies designed to locate given and new information.     

Foucault and ethical universality

Foucault's resistance to a universalist ethics, especially in his later writings, is well-known. Foucault thinks that ethical universalism presupposes a shared human essence, and that this presupposition makes it a straitjacket, an attempt to force people to conform to an externally imposed 'pattern'. Foucault's hostility may be warranted for one - perhaps the usual - conception of ethical universality. But there are other conceptions of ethical universality that are not vulnerable to Foucault's criticism, and that are ethically and culturally important. I set out one such conception, and show why it matters. Paul Patton has argued that Foucault is best read as grounding his analyses of power in a 'conception of human being' traceable to Nietzsche. I explain why this does not amount to the ethical universalism that I sketch below.     

Relativism and Assertion

Relativism entails that sentences like ‘Liquorice is tasty’ are used to assert relativistic propositions—that is, propositions whose truth-value is relative to a taste standard. I will defend this view against two objections. According to the first objection, relativism is incompatible with a Stalnakerian account of assertion. I will show that this objection fails because Stalnakerian assertions are proposals rather than attempts to update the common ground. According to the second objection, relativism problematically predicts that we can correctly assess beliefs as false but faultless. I will show that it doesn't. Such assessments come out as incorrect because correct relativistic assertion requires the absence of a presupposition of non-commonality.