Modal Stability and Warrant

Keith DeRose believes that it is a strength of his contextualist analysis that it explains why the recently much-discussed skeptical Argument from Ignorance (AI) is so persuasive. Not only that, however; DeRose also believes that he is able to explain the underlying dynamics of AI by utilizing solely the epistemological and linguistic resources contained within his contextualist analysis. DeRose believes, in other words, that his contextualist analysis functions as a genuinely self-contained explanation of skepticism. But does it? In this paper I argue that DeRose’s analysis does not function as a self-contained explanation of skepticism since, as it turns out, DeRose’s analysis is simply irrelevant to the main concerns of the skeptic. To the extent that DeRose’s analysis is irrelevant in this way, I conclude that such an analysis cannot be considered a satisfactory treatment of AI.     

保证知识论与基督教信念

Alvin Plantinga后期建立了保证的知识论,并在此架构下对有神信念辩护。他主要是回应启蒙运动以来的对有神信念知识上批判。Plantinga认为这些启蒙批判事先预设了有神信念为假,因此不是知识上有效的反驳。有些批评认为Plantinga的论证结构有问题。本文介绍这些批评,指出Planinga的论证有两个背景,分别是保证的知识结构和改革宗的预设护教学。补充完整背景后,Plantinga的论证策略不仅可以理解,也可以回应批评。尽管Plantinga的论证可成立,但他对启蒙批判的理解有误。本文指出,启蒙批判的本体立场乃是自然主义,并介绍反自然主义的论证,结论是有神信念比之自然主义有知识上的优势。     

Truth, Warrant and Superassertibility

In a recent paper on Truth, Knowability and Neutrality Timothy Kenyon sets out to defend the coherence of a putative anti-realist truth-predicate, superassertibility, due to Wright (1992, 1999), against a number of Wright’s critics. By his own admission, the success of Kenyon’s defensive strategies turns out to hinge upon a realist conception of absolute warrant which conflicts with the anti-realist character of the original proposal, based, as it was, on a notion of defeasible warrant. Kenyon’s potential success in resisting Wright’s critics brings a pyrrhic victory: either way, realism wins. Here I argue that the link between superassertibility and defeasible warrant can be restored in a way which clarifies the consistency of the pair, provided that the notion of inference to superassertibility is properly understood in logical terms. As one might expect, the requisite notion is not classical in character. As one might not expect, the notion cannot be properly construed in intuitionist terms either. Hence, I propose an alternative logical framework which, I believe, is at least formally adequate to the representation of superassertibility on the basis of defeasible warrant. The price to be paid for rejecting the ‘third way’ proposed here in favour of either of the two more traditional logical options is precisely that indicated by Kenyon’s discussion.     

Accidentally True Belief and Warrant

The Proper Functionist account of warrant – like many otherexternalist accounts – is vulnerable to certain Gettier-style counterexamples involving accidentally true beliefs. In this paper, I briefly survey the development of the account, noting the way it was altered in response to such counterexamples. I then argue that Alvin Plantinga's latest amendment to the account is flawed insofar as it rules out cases of true beliefs which do intuitively strike us as knowledge, and that a conjecture recently put forward by Thomas Crisp is also defective. I conclude by presenting my own suggestion as to how the account can be made less vulnerable to counterexamples involving accidentally true beliefs. Although I stay within the confines of Proper Functionism here, I think that my proposal (modulo a few details) could be attached to other externalist accounts of warrant as well.     

Logical Properties of Warrant

Trenton Merricks argues that on any reasonable account, warrant must entailtruth. I demonstrate three theses about the properties ofwarrant: (1) Warrant is not unique;there are many properties that satisfy the definition of warrant. (2) Warrant need not entail truth; there are some warrant properties that entailtruthand others that do not. (3) Warrant need not be closed under entailment, even if knowledge is. If knowledge satisfies closure, then some warrant properties satisfy closure while others do not;if knowledge violates closure, then allwarrant properties violate closure.     

Perceptual Justification and Warrant by Default

As I use the term, ‘entitlement’ is any warrant one has by default—i.e. without acquiring it. Some philosophers not only affirm the existence of entitlement, but also give it a crucial role in the justification of our perceptual beliefs. These philosophers affirm the Entitlement Thesis: that an essential part of what makes our perceptual beliefs justified is our entitlement to the proposition that I am not a brain-in-a-vat. Crispin Wright, Stewart Cohen and Roger White are among those who endorse this controversial claim. In this paper, I argue that the Entitlement Thesis is false.     

Virtue Ethics, Theory, and Warrant

Are there good grounds for thinking that the moral values of action are to be derived from those of character? This ‘virtue ethical’ claim is sometimes thought of as a kind of normative ethical theory; sometimes as form of opposition to any such theory. However, the best case to be made for it supports neither of these claims. Rather, it leads us to a distinctive view in moral epistemology: the view that my warrant for a particular moral judgement derives from my warrant for believing that I am a good moral judge. This view seems to confront a regress-problem. For the belief that I am a good moral judge is itself a particular moral judgement. So it seems that, on this view, I need to derive my warrant for believing that I am a good moral judge from my warrant for believing that I am a good judge of moral judges; and so on. I show how this worry can be met, and trace the implications of the resulting view for warranted moral judgement.     

Kitcher on Tradition-Independent A Priori Warrant

In his most recent treatment of a priori knowledge, Philip Kitcher argues against what he takes to be the widespread view that our knowledge and warranted belief is 'tradition-independent'. Furthermore, he argues that defeasible conceptions of a priori warrant entail that it is not tradition-independent, a conclusion which he thinks is contrary to what most epistemologists hold. I argue that knowledge is not widely believed to be tradition-independent, and that, while warrant is widely believed to be tradition-independent, Kitcher's arguments show neither that this widespread view is mistaken nor that it conflicts with defeasible a priori warrant. I conjecture that Kitcher may be misled by a lack of clarity regarding the analysandum designated by 'warrant'.     

Understanding Fallible Warrant and Fallible Knowledge: Three Proposals

One of contemporary epistemology's more important conceptual challenges is that of understanding the nature of fallibility. Part of why this matters is that it would contribute to our understanding the natures of fallible warrant and fallible knowledge. This article evaluates two candidates – and describes a shared form of failing. Each is concealedly infallibilist. This failing is all‐too‐representative of the difficulty of doing justice to the notion of fallibility within the notions of fallible warrant and fallible knowledge. The article ends with a proposal for an improved (even if schematic) form of conception of fallible warrant and fallible knowledge.     

Causal Warrant for Realism about Particle Physics

While scientific realism generally assumes that successful scientific explanations yield information about reality, realists also have to admit that not all information acquired in this way is equally well warranted. Some versions of scientific realism do this by saying that explanatory posits with which we have established some kind of causal contact are better warranted than those that merely appear in theoretical hypotheses. I first explicate this distinction by considering some general criteria that permit us to distinguish causal warrant from theoretical warrant. I then apply these criteria to a specific case from particle physics, claiming that scientific realism has to incorporate the distinction between causal and theoretical warrant if it is to be an adequate stance in the philosophy of particle physics.