1 HEMPEL, SCHEFFLER, AND THE RAVENS 1 7 HEMPEL, SCHEFFLER, AND THE RAVENS * EMPEL has provided cogent reasons in support of the equivalence condition as a condition of adequacy for any definition of confirmation.? If confirmation theory is to be tied up with a theory of rationality, it would seem that the equivalence condition should be satisfied. For surely it would be odd to maintain that it is rational to believe a hypothesis S, on the basis of evidence E but not rational to believe S, on the basis of E even though S, and S2 are logically equivalent. This is the point that Hempel seems to have in mind when he argues in defense of the equivalence condition that it would be strange to suppose... that it was sound scientific procedure to base a prediction on a given hypothesis if formulated in a sentence SI,because a good deal of confirming evidence had been found for S1;but that it was altogether inadmissible to base the prediction (say, for the convenience of deduction) on an equivalent formulation Sz,because no confirming evidence for SZwas available (13/14). Adoption of the equivalence condition, however, leads to the infamous raven paradox. Solutions to this paradox frequently have taken one of two forms. The first involves rejecting the equivalence condition in order to have a theory of confirmation that allegedly accords with our intuitions. The second involves keeping the equivalence condition but rejecting our intuitions by attempting to show that they are misguided. Scheffler takes the first approach **; Hempel the second (14-20). Obviously, the plausibility of Scheffler's solution depends, in part, upon the strength of his arguments against the equivalence condition, whereas the plausibility of Hempel's account depends, in part, upon the cogency of his thesis that our intuitions are misguided. Neither approach seems to me satisfactory. For this reason, I wish to do several things in this paper. First I will show that Scheffler's argument against the equivalence condition is mistaken. Thus, in the absence of further argument, we are still in need of a theory of confirmation that satisfies the equivalence condition. Secondly, I will propose a solution to the raven paradox which (a) * I am indebted to Jay Atlas and Robert Schwartz for their helpful criticisms of an earlier draft of this paper. t Carl G. Hempel, "Studies in the Logic of Confirmation," Mind, LIV (1945), 213 (January): 1-26, and 214 (April): Reprinted in Hempel's Aspects of Scientific Explanation (New York, 1965). Parenthetical page references to Hempel will be to this reprinted version. See pp **Israel Scheffler, The Anatomy of Inquiry (New York: Knopf, 1963), pp. 286 ff. Parenthetical page references to Scheffler will be to this book.
2 I08 THE JOURNAL OF PHILOSOPHY satisfies the equivalence condition; (b) does not yield the unintuitive result that a white shoe confirms the hypothesis "All ravens are black"; and (c) accords with our intuitions in a crucial area where the theories of both Hempel and Scheffler fail us. The key to this solution depends upon acceptance of the view that logically equivalent hypotheses need not be equally projectible. Scheffler appears to hold that evidence E confirms a hypothesis H if and only if H is projectible and E is a selectively positive instance of H. And E is a selectively positive instance of H if and only if E is both a positive instance of H (in Hempel's satisfaction sense of 'positive instance') and a negative instance of the contrary of H (in Hempel's satisfaction sense of 'negative instance'). Since logically equivalent hypotheses may have contraries that are not logically equivalent and since E may be a negative instance of the contrary of H but not a negative instance of the contrary of a logical equivalent of H, say H', E may confirm H but not H'. This theory does not yield the paradoxical result that an object d which is a white shoe confirms the hypothesis "All ravens are black," since the sentence "d is not a raven and d is not black" is not a selectively positive instance of that hypothesis. But since this theory violates the intuitively plausible equivalence condition, Scheffler attempts to show that such a violation is not objectionable. In effect, Scheffler's argument is intended to show, pace Hempel, that it is sometimes reasonable to base a prediction on a given hypothesis formulated by a sentence S,, but not reasonable to base the prediction on an equivalent formulation S2. We now turn to Scheffler's argument. Following Scheffler's numbering and with the obvious interpretation of the predicate letters, we list the following relevant sentences: (I) (x)(rx 3 Bx) (2) Ra - Ba (3) z Bd. z Rd (4) (x)(+ Bx > + Rx) (6) (x)(rx > z Bx) (7) (x)(z Bx > Rx) Scheffler's argument against the equivalence condition is as follows:... take (4) as our case of S1,and imagine all the evidence to consist of statements such as (3). True, (3) satisfies (4) and also (1). But it also satisfies the contrary of (I), i.e., (6). Do we have any reason, so far, for predicting that a new-found raven will be black rather than not? Since (1) and (6) together imply that
3 HEMPEL, SCHEFFLER, AND THE RAVENS 1 9 there are no ravens, our new-found raven forces us to give up at least one of these statements. If we give up (6) and predict 'Black', we can retain (4). If we give up (1) and predict 'Not black', we have to give up (4) as well, for (4) and (6) are incompatible, given the existence of our raven. We might suppose we have here a reason for retaining (1) and predicting 'Black'. But, on the contrary, if we predict 'Black', thus saving (4), we shall need to give up another hypothesis hitherto confirmed, i.e., that nothing is black, whereas if we yield (4) and predict 'Not black', we can save the latter hypothesis. Here, it seems, is a case where basing a prediction directly on (4) (i.e., predicting 'Nonraven' for a new instance of 'non-black') is beyond suspicion, while basing a prediction directly on its equivalent, (I), is a matter of balanced decision. The reason, furthermore, is not that "no confirming evidence" (in the sense of satisfaction) is available for (I), but that whatever is available also supports its contrary, (6) (p. 290). Surely, Scheffler is correct in claiming that, if our evidence consists solely of statements such as (3) and if we are presented with a new evidence statement, say 'Rb', then it is a matter of balanced decision whether to employ (1) and predict that b is black or to employ (6) and predict that b is not black. On the basis of our evidence neither prediction is more reasonable than the other.2 But this alone is not an argument against the equivalence condition, since it is also a matter of balanced decision whether to base the prediction on (4) which is logically equivalent to (1) rather than on (6). Conjoining our evidence statement with (4) will yield the prediction that b is black; conjoining it with (6) will yield the prediction that b is not black. In this situation, a prediction based on (4) is no more reasonable nor less a matter of balanced decision than a prediction based on its logical equivalent (1). That Scheffler comes to a different conclusion stems from the fact that he switches examples in mid-argument. Initially, he tried to show that, given 'Rb', a prediction made on the basis of (1) is a matter of balanced decision. He then tries to show that a prediction made on the basis of a logical equivalent of (I), namely (4), is beyond suspicion. But in order to establish this latter floint Schefler suddenly changes the example. Whereas the initial "balanced decision" prediction employing (1) was made on the assumption that zfor reasons which will soon become apparent, I believe that, on the basis of the stated evidence, neither prediction is reasonable. Unless otherwise noted, I assume throughout that the evidence statements referred to are the sole evidence statements at our disposal. Occasionally, for the sake of emphasis, this point is explicitly made in the text. And occasionally for the sake of convenience I speak of objects such as black ravens rather than of statements as the confirming evidence.
4 I10 THE JOURNAL OF PHILOSOPHY 'Rb' was given, the new "beyond suspicion" prediction employing (4) is made not on the assumption that 'Rb' is given, but rather on the assumption that, say, '-Bc' is given. Thus Scheffler writes, "predicting 'Non-raven' for a new instance of 'Non-black' " (290; my italics). But now we should ask whether, given '-Bc' (rather than given 'Rb'), it is a matter of balanced decision to base the prediction 'Nonraven' on (1) but not on (4)? And the answer is obviously no. For by conjoining '+Bc' with (1) we derive '+Rc', and hence (1) as well as (4) yields the prediction 'Nonraven'. And there is no problem that the contrary of (I), namely (6), will yield a conflicting prediction when conjoined with our evidence statement. For, although (6) is confirmed, in Hempel's sense, by our evidence, (6) and '+Bc' do not yield 'Rc'. Further, since (7) is disconfirmed by our evidence, (7) cannot be appealed to in order to yield a prediction that conflicts with (1). So, given 'zbc', basing the prediction on (1) is just as much beyond suspicion as is basing the prediction on (4). And, given 'Rb', basing the prediction on (4) is just as much a matter of balanced decision as is basing the prediction on (1). Hence, Scheffler has not provided us with any grounds for rejecting the equivalence condition. In the absence of convincing arguments against the equivalence condition, it is desirable to develop a theory of confirmation that satisfies it. Although Hempel's own theory does satisfy this condition, I find his solution to the raven paradox somewhat less than convincing. One of the reasons for this should now become apparent. There are two key aspects of the raven paradox which have generally been neglected but which need to be accounted for in any satisfactory solution. First, most discussions of the raven paradox center around the question: Does (3) confirm (I)? How, for example, can a white shoe confirm the hypothesis "All ravens are black"? It is striking that neither Hempel nor Scheffler questions whether a white shoe confirms the hypothesis "All nonblack things are nonravens." Both assume that (3), in fact, does confirm (4). But it is just this questionable assumption that gives rise to the raven paradox. This assumption seems to me to be clearly wrong and the source of mistaken solutions to the raven paradox. Second, although most discussions ask how it is possible for (3) to confirm (I), they do not ask how it is possible for a black raven to confirm the hypothesis "All nonblack things are nonravens." That (2) confirms (4) does not seem paradoxical at all. Yet, if the
5 HEMPEL, SCHEFFLER, AND THE RAVENS 111 approach taken by Hempel or Scheffler were correct, then the claim that (2) confirms (4) should seem as paradoxical as the claim that (3) confirms (1). But clearly it is not. That a is a raven and a is black does seem to confirm (4) ("All nonblack things are nonravens"). But that d is not a raven and d is not black does not seem to confirm (1) ("All ravens are black"). Recognition of this asymmetry in our confirmation intuitions is crucial for a satisfactory solution to the raven paradox. Yet, neither Hempel nor Scheffler recognizes or accounts for it. How, then, can it be accounted for? The answer, I believe, is this: Hypothesis (1) is projectible, whereas (4) is not.a The selectively positive instances of (1) in general increase the credibility of statements asserting that other ravens are black and, hence, confirm (I), whereas the selectively positive instances of (4) do not in general increase the credibility of statements asserting that other nonblack things are nonravens and, hence, do not confirm (4). In the absence of any negative instances of (4), the initial grounds for classifying it as unprojectible are essentially the same as the grounds for classifying "All emeralds are grue" as unprojectible or "All emerubies are gred" as unprojectible 4; namely, that their respective selectively positive instances do not in general increase their credibility.6 Finding a nonblack 3 I follow Goodman's terminology. See Fact, Fiction, and Forecast, 2nd ed. (Indianapolis: Bobbs-Merrill, 1965), ch. IV. Hereafter FFF. I recently learned that Quine has proposed a sketchier but, in part, somewhat similar solution. See his "Natural Kinds," in Ontological Relativity and Other Essays (New York: Columbia, 1969). 4 Something is grue if and only if it is green and examined before t or not so examined and is blue; something is an emeruby if and only if it is an emerald and examined before t, or is not so examined and is a ruby; something is gred if and only if it is green and examined before t, or not so examined and is red. 5 On this point see, for example, FFF, pp. 69, 73, and 77, and Goodman, "Two Replies," this JOURNAL, LXIV, 1967, p Of course, if our evidence consists solely of nonbladc nonravens, then (4) is not eliminated by Goodman's projectibility rules as set forth in FFF; for there is no supported, unviolated, unexhausted, and significantly better entrenched hypothesis that conflicts with (4). In the absence of such a conflict, our grounds for classifying (4) as unprojectible might be the low entrenchment of its antecedent and consequent predicates. In FFF, p. 106, Goodman himself claims that there may be hypotheses which escape elimination by his rules, but which are nevertheless not projectible. (4), I believe, is such a hypothesis. In "An Improvement in the Theory of Projectibility" by Robert Schwartz, Israel Scheffler, and Nelson Goodman, this JOURNAL, LXVII,18 (Sept. 17, 1970): , some changes are made in Goodman's theory as proposed in FFF. Now there is a threefold classification of hypotheses-projectible, unprojectible, and nonprojectible. I believe that, under the conditions stated above, (4) will turn out to be nonprojectible according to this revised theory. Suppose our evidence consists solely of white shoes, red herrings, etc., examined before time t; i.e., all and only nonbladc nonravens. Let us introduce a new predicate 'braven'
6 112 THE JOURNAL OF PHILOSOPHY nonraven does not in general increase our belief that all other nonblack things are nonravens. Hence, (3) does not confirm (4) and a fortiori (3) does not confirm (1). Both Hempel and Scheffler, then, are mistaken in affirming the confirmation of (4) by (3). Further, finding a black raven surely increases our belief that all other ravens are black and also our belief that all nonblack things are nonravens. And this accounts for its being nonparadoxical to suppose that (2) confirms (4). Hence the projectibility of (1) and the nonprojectibility of (4) account for the earlier mentioned asymmetry in our confirmation intuitions. The above argument assumes that logically equivalent hypotheses such as (1) and (4) need not be equally projectible. This view, I believe, is correct, and it is compatible with Goodman's position in Fact, Fiction, and Forecast. For the projectibility value of a conditional hypothesis depends upon the entrenchment value of its antecedent and consequent predicates. But since the antecedent and consequent predicates of (1) differ from and are not coextensive with those of (4), it follows that under Goodman's theory (1) and (4) need not be equally projectible.8 And it would appear that the unprojectability of (4) is due to the poor entrenchment of its antecedent and consequent predicates. If my previous remarks are correct, then both Hempel and Scheffler have been mistaken in their proposed solutions to the raven paradox. Both assumed that, given (3) as the sole evidence, it confirmed (4). Hempel then tried to explain why our intuitions are misguided in our supposing that (3) does not confirm (1). Scheffler, on the other hand, supposed that, in an important and strong sense of confirmation, (3) confirmed (4) but not (1). He then that applies to all objects examined before t just in case they are nonravens and to other things just in case they are ravens. Under the stated conditions both (4) and (8) All nonblack things are bravens. are supported, unviolated, and (presumably) unexhausted. But (4) and (8) conflict. Can (8) be eliminated because of a conflict with (4)) This can be done only if 'nonraven' as a consequent predicate is appreciably better entrenched than 'braven'. But is it? It seems unlikely that 'nonraven' is "a veteran of earlier and many more projections" than 'braven'. If this is true, then neither (4) nor (8) is overriden, and, under the revised theory, both (4) and (8) would be classified as nonprojectible. Hence, neither would be confirmed by its instances. 8 See EEF, pp , n. 13. Elsewhere Goodman remarks that "many consequences of projectible hypotheses are not themselves projectible" ("Comments," this JOURNAL, LXIII, 11 (May 26, 1966): , p Cf. FEE, p. 108, n. 16). A necessary condition for a hypothesis to be projectible is that it be supported. If our evidence consists solely of black ravens then, according to Goodman's theory, (1) but not (4) would be projectible, since (4) is unsupported.
7 HEMPEL, SCHEFFLER, AND THE RAVENS 113 proposed a theory of confirmation which yielded this result. What I have suggested, however, is that the initial mistake of both Hempel and Scheffler was in supposing that under the stated conditions (3) confirmed (4). Once we rid ourselves of the belief that (3) confirms (4), we avoid the major problem with the equivalence condition. For if we grant that (3) does not confirm (4), we are not forced to reject the equivalence condition in denying that (3) confirms (1). Furthermore, since neither (4) nor (1) is confirmed by (3), neither a prediction based on (4) nor a prediction based on (1) will be reasonable. On the other hand, it is obvious that, given (2) as the sole evidence, it confirms (1); (1) is projectible, and (2) is a selectively positive instance of (1). But if we grant this and if we also accept the equivalence condition, then we are committeed to the view that (2) confirms (4). But, as stated earlier, this view seems perfectly legitimate. At least according to my confirmation intuitions, it seems clear that finding a black raven does increase the credibility of the hypothesis that all nonblack things are nonravens. We are now led to the following position: although (4) is not projectible in the sense that in general its selectively positive instances do not increase its credibility [and hence, (4) is not confirmed by its selectively positive instances], (4) is, nevertheless, confirmed by the selectively positive instances of a logically equivalent hypothesis, namely, (1). Thus, a hypothesis that is not projectible still is confirmed by the selectively positive instances of a logically equivalent hypothesis, provided that such instances confirm the hypothesis of which they are selectively positive instances.7 The equivalence condition is thereby satisfied; for, according to this notion of confirmation, if evidence E confirms a hypothesis H, then E confirms all logical equivalents of H. So, if we restrict ourselves to simple universal conditionals to which both Scheffler's notion of 7 The view that a given piece of evidence may confirm a hypothesis even though it is not a selectively positive instance of that hypothesis is not in conflict with Goodman's remarks in FFF. On pp Goodman notes that the prediction that all subsequently examined emeralds will be green is confirmed by the evidence statement that a given emerald is green. This evidence statement, however, is not an instance of the confirmed prediction. Rather it is an instance of a hypothesis of which the prediction is a consequence. And obviously the prediction itself, since unsupported, is not projectible. An interesting side issue is raised bv Goodman's remark. since it assumes the validitv of the consequence condition. But since the consequence condition entails the equivalence condition, the reiection of the latter condition requires the abandonment of the former. ~oodmah, then, would encounter problems if he were (as is sometimes suggested) to give up the equivalence condition.
8 114 THE JOURNAL OF PHILOSOPHY selectively positive instance and Goodman's theory of projectibility apply, we may propose the following definition of direct confirmation by such instances: Evidence E directly confirms a hypothesis H =,H is projectible and E is a selectively positive instance of H, or E is a selectively positive instance of a projectible hypothesis H' that is logically equivalent to H.8 This view of confirmation appears to be plausible. It accords with our confirmation intuitions and yet preserves the equivalence condition. University of Massachusetts, Amherst LAWRENCE FOSTER 8 Following Hempel, we can then define "E confirms H" as "H is entailed by a class of sentences each of which is directly confirmed by E." For reasons which I have given elsewhere [see my "Inductive and Ethical Validity," American Philosophical Quarterly, VIII, 1 (January 1971): 35-44], I believe that the notion of confirmation by selectively positive instances provides sufficient but not necessary conditions for one statement to confirm another. The previous definitions, then, can be more accurately construed as defining the narrower notions of "selectively positive-instance direct confirmation" and "selectively positive-instance confirmation." An International Quarterly Index To Philosophical Periodicals The Philosopher's lndex is an up-to-date quarterly index of articles from more than one hundred and forty major philosophy journals and related interdisciplinary publications. Articles are indexed by subject and author. Abstracts of the articles are published in each issue and are written by the authors of the articles. In addition, the lndex now contains a Book Review Index. The Quarterly, Paperback, $20 (Individuals: $1 0) Annual Cumulative Edition, Hardbound, $25 (Individuals: $15) THE PHILOSOPHER'S INDEX BOWLING GREEN UNIVERSITY BOWLING GREEN, OHIO U.S.A.
On the Equivalence of Goodman s and Hempel s Paradoxes by Kenneth Boyce DRAFT Nevertheless, the difficulty is often slighted because on the surface there seem to be easy ways of dealing with it. Sometimes,
Ratio (new series) XXI 2 June 2008 0034 0006 ROBUSTNESS AND THE NEW RIDDLE REVIVED Adina L. Roskies Abstract The problem of induction is perennially important in epistemology and the philosophy of science.
DISCUSSION NOTE BY CAMPBELL BROWN JOURNAL OF ETHICS & SOCIAL PHILOSOPHY DISCUSSION NOTE MAY 2015 URL: WWW.JESP.ORG COPYRIGHT CAMPBELL BROWN 2015 Two Versions of Hume s Law MORAL CONCLUSIONS CANNOT VALIDLY
Aporia vol. 19 no. 1 2009 Hempel s Raven Joshua Ernst In his paper Studies of Logical Confirmation, Carl Hempel discusses his criteria for an adequate theory of confirmation. In his discussion, he argues
In Defense of The Wide-Scope Instrumental Principle Simon Rippon Suppose that people always have reason to take the means to the ends that they intend. 1 Then it would appear that people s intentions to
IN DEFENCE OF CLOSURE IN DEFENCE OF CLOSURE By RICHARD FELDMAN Closure principles for epistemic justification hold that one is justified in believing the logical consequences, perhaps of a specified sort,
9 [nt J Phil Re115:49-56 (1984). Martinus Nijhoff Publishers, The Hague. Printed in the Netherlands. NATURAL EVIL AND THE FREE WILL DEFENSE PAUL K. MOSER Loyola University of Chicago Recently Richard Swinburne
Confirmation Gary Hardegree Department of Philosophy University of Massachusetts Amherst, MA 01003 1. Hypothesis Testing...1 2. Hempel s Paradox of Confirmation...5 3. How to Deal with a Paradox...6 1.
Forthcoming in Philosophy of Science. Penultimate version. A New Bayesian Solution to the Paradox of the Ravens 1 Susanna Rinard Abstract The canonical Bayesian solution to the ravens paradox faces a problem:
International Journal for Philosophy of Religion 48: 1 10, 2000. 2000 Kluwer Academic Publishers. Printed in the Netherlands. 1 Evidential arguments from evil RICHARD OTTE University of California at Santa
ELEONORE STUMP PENELHUM ON SKEPTICS AND FIDEISTS ABSTRACT. Professor Penelhum has argued that there is a common error about the history of skepticism and that the exposure of this error would significantly
Logic: Inductive Logic is the study of the quality of arguments. An argument consists of a set of premises and a conclusion. The quality of an argument depends on at least two factors: the truth of the
Ayer and Quine on the a priori November 23, 2004 1 The problem of a priori knowledge Ayer s book is a defense of a thoroughgoing empiricism, not only about what is required for a belief to be justified
24.251: Philosophy of Language Paper 2: S.A. Kripke, On Rules and Private Language 21 December 2011 The Kripkenstein Paradox and the Private World In his paper, Wittgenstein on Rules and Private Languages,
THE PROBLEM OF CONTRARY-TO-FACT CONDITIONALS By JOHN WATLING There is an argument which appears to show that it is impossible to verify a contrary-to-fact conditional; so giving rise to an important and
Has Nagel uncovered a form of idealism? Author: Terence Rajivan Edward, University of Manchester. Abstract. In the sixth chapter of The View from Nowhere, Thomas Nagel attempts to identify a form of idealism.
ANAL63-3 4/15/2003 2:40 PM Page 221 Resemblance Nominalism and counterparts Alexander Bird 1. Introduction In his (2002) Gonzalo Rodriguez-Pereyra provides a powerful articulation of the claim that Resemblance
Christ-Centered Critical Thinking Lesson 6: Evaluating Thinking 1 In this lesson we will learn: To evaluate our thinking and the thinking of others using the Intellectual Standards Two approaches to evaluating
HAVE WE REASON TO DO AS RATIONALITY REQUIRES? A COMMENT ON RAZ BY JOHN BROOME JOURNAL OF ETHICS & SOCIAL PHILOSOPHY SYMPOSIUM I DECEMBER 2005 URL: WWW.JESP.ORG COPYRIGHT JOHN BROOME 2005 HAVE WE REASON
POWERS, NECESSITY, AND DETERMINISM Thought 3:3 (2014): 225-229 ~Penultimate Draft~ The final publication is available at http://onlinelibrary.wiley.com/doi/10.1002/tht3.139/abstract Abstract: Stephen Mumford
On Modal Personism Shelly Kagan s essay on speciesism has the virtues characteristic of his work in general: insight, originality, clarity, cleverness, wit, intuitive plausibility, argumentative rigor,
IS GOD "SIGNIFICANTLY FREE?'' Wesley Morriston In an impressive series of books and articles, Alvin Plantinga has developed challenging new versions of two much discussed pieces of philosophical theology:
264 BOOK REVIEWS AND NOTICES BENEDIKT PAUL GÖCKE Ruhr-Universität Bochum István Aranyosi. God, Mind, and Logical Space: A Revisionary Approach to Divinity. Palgrave Frontiers in Philosophy of Religion.
1. The Scope of Skepticism Philosophy 5340 Epistemology Topic 4: Skepticism Part 1: The Scope of Skepticism and Two Main Types of Skeptical Argument The scope of skeptical challenges can vary in a number
p. 1 Two Kinds of Moral Relativism JOHN J. TILLEY INDIANA UNIVERSITY PURDUE UNIVERSITY INDIANAPOLIS firstname.lastname@example.org [Final draft of a paper that appeared in the Journal of Value Inquiry 29(2) (1995):
Semantic Foundations for Deductive Methods delineating the scope of deductive reason Roger Bishop Jones Abstract. The scope of deductive reason is considered. First a connection is discussed between the
ALTERNATIVE SELF-DEFEAT ARGUMENTS: A REPLY TO MIZRAHI Michael HUEMER ABSTRACT: I address Moti Mizrahi s objections to my use of the Self-Defeat Argument for Phenomenal Conservatism (PC). Mizrahi contends
1 Faith and Philosophy, April (2006), 191-200. Penultimate Draft DE SE KNOWLEDGE AND THE POSSIBILITY OF AN OMNISCIENT BEING Stephan Torre In this paper I examine an argument that has been made by Patrick
A Priori Bootstrapping Ralph Wedgwood In this essay, I shall explore the problems that are raised by a certain traditional sceptical paradox. My conclusion, at the end of this essay, will be that the most
Am I free? Freedom vs. Fate We ve been discussing the free will defense as a response to the argument from evil. This response assumes something about us: that we have free will. But what does this mean?
1 Lecture 3 I argued in the previous lecture for a relationist solution to Frege's puzzle, one which posits a semantic difference between the pairs of names 'Cicero', 'Cicero' and 'Cicero', 'Tully' even
48 McCLOSKEY ON RATIONAL ENDS: The Dilemma of Intuitionism T om R egan In his book, Meta-Ethics and Normative Ethics,* Professor H. J. McCloskey sets forth an argument which he thinks shows that we know,
Undergraduate Review Volume 6 Article 30 2010 Naturalism and is Opponents Joseph Spencer Follow this and additional works at: http://vc.bridgew.edu/undergrad_rev Part of the Epistemology Commons Recommended
Stance Volume 3 April 2010 The Principle of Sufficient Reason and Free Will ABSTRACT: I examine Leibniz s version of the Principle of Sufficient Reason with respect to free will, paying particular attention
162 THE JOURNAL OF PHILOSOPHY cial or political order, without this second-order dilemma of who is to do the ordering and how. This is not to claim that A2 is a sufficient condition for solving the world's
A solution to the problem of hijacked experience Jill is not sure what Jack s current mood is, but she fears that he is angry with her. Then Jack steps into the room. Jill gets a good look at his face.
Contextualism and the Epistemological Enterprise Michael Blome-Tillmann University College, Oxford Abstract. Epistemic contextualism (EC) is primarily a semantic view, viz. the view that knowledge -ascriptions
Intersubstitutivity Principles and the Generalization Function of Truth Anil Gupta University of Pittsburgh Shawn Standefer University of Melbourne Abstract We offer a defense of one aspect of Paul Horwich
Religious Studies 42, 123 139 f 2006 Cambridge University Press doi:10.1017/s0034412506008250 Printed in the United Kingdom Divine omniscience, timelessness, and the power to do otherwise HUGH RICE Christ
Overview Is there a priori knowledge? Is there synthetic a priori knowledge? No: Mill, Quine Yes: faculty of a priori intuition (Rationalism, Kant) No: all a priori knowledge analytic (Ayer) No A Priori
Mark Schroeder November 27, 2006 University of Southern California Buck-Passers Negative Thesis [B]eing valuable is not a property that provides us with reasons. Rather, to call something valuable is to
On the Possibility of Constructing Truth-Conditions for Self-Referential Propositions Patrick Colin Hogan State University of New York at Buffalo Despite the remarkable problems encountered by classificatory
In Defense of Radical Empiricism Joseph Benjamin Riegel A thesis submitted to the faculty of the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of
CLASS #17: CHALLENGES TO POSITIVISM/BEHAVIORAL APPROACH I. Challenges to Confirmation A. The Inductivist Turkey B. Discovery vs. Justification 1. Discovery 2. Justification C. Hume's Problem 1. Inductive
A Solution to the Gettier Problem Keota Fields Problem cases by Edmund Gettier 1 and others 2, intended to undermine the sufficiency of the three traditional conditions for knowledge, have been discussed
PHILOSOPHIES OF SCIENTIFIC TESTING By John Bloore Internet Encyclopdia of Philosophy, written by John Wttersten, http://www.iep.utm.edu/cr-ratio/#h7 Carl Gustav Hempel (1905 1997) Known for Deductive-Nomological
PHILOSOPHY 4360/5360 METAPHYSICS Methods that Metaphysicians Use Method 1: The appeal to what one can imagine where imagining some state of affairs involves forming a vivid image of that state of affairs.
A Liar Paradox Richard G. Heck, Jr. Brown University It is widely supposed nowadays that, whatever the right theory of truth may be, it needs to satisfy a principle sometimes known as transparency : Any
CRUCIAL TOPICS IN THE DEBATE ABOUT THE EXISTENCE OF EXTERNAL REASONS By MARANATHA JOY HAYES A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS
An Evaluation of Normative Ethics in the Absence of Moral Realism Mathais Sarrazin J.L. Mackie s Error Theory postulates that all normative claims are false. It does this based upon his denial of moral
On The Logical Status of Dialectic (*) -Historical Development of the Argument in Japan- Shigeo Nagai Naoki Takato 1 The term "logic" seems to be used in two different ways. One is in its narrow sense;
Logic: inductive Penultimate version: please cite the entry to appear in: J. Lachs & R. Talisse (eds.), Encyclopedia of American Philosophy. New York: Routledge. Draft: April 29, 2006 Logic is the study
DOI: 10.1111/j.1467-9205.2009.01373.x Philosophical Investigations 32:3 July 2009 ISSN 0190-0536 Hempel s Paradox, Law-likeness and Causal Relations Severin Schroeder, University of Reading It is natural
Do e s An o m a l o u s Mo n i s m Hav e Explanatory Force? Andrew Wong Washington University, St. Louis The aim of this paper is to support Donald Davidson s Anomalous Monism 1 as an account of law-governed
Scanlon on Double Effect RALPH WEDGWOOD Merton College, University of Oxford In this new book Moral Dimensions, T. M. Scanlon (2008) explores the ethical significance of the intentions and motives with
http://plato.stanford.edu/entries/learning-formal/ (On Goodman s New Riddle of Induction) This illustrates how means-ends analysis can evaluate methods: the bold method meets the goal of reliably arriving
Time travel and the open future University of Queensland Abstract I argue that the thesis that time travel is logically possible, is inconsistent with the necessary truth of any of the usual open future-objective
What is the Frege/Russell Analysis of Quantification? Scott Soames The Frege-Russell analysis of quantification was a fundamental advance in semantics and philosophical logic. Abstracting away from details
Wittgenstein and Moore s Paradox Marie McGinn, Norwich Introduction In Part II, Section x, of the Philosophical Investigations (PI ), Wittgenstein discusses what is known as Moore s Paradox. Wittgenstein
Forthcoming in Faith and Philosophy BEGINNINGLESS PAST AND ENDLESS FUTURE: REPLY TO CRAIG Wes Morriston In a recent paper, I claimed that if a familiar line of argument against the possibility of a beginningless
Can Rationality Be Naturalistically Explained? Jeffrey Dunn Abstract: Dan Chiappe and John Vervaeke (1997) conclude their article, Fodor, Cherniak and the Naturalization of Rationality, with an argument
1 In Search of the Ontological Argument Richard Oxenberg Abstract We can attend to the logic of Anselm's ontological argument, and amuse ourselves for a few hours unraveling its convoluted word-play, or
Etchemendy, Tarski, and Logical Consequence 1 Jared Bates, University of Missouri Southwest Philosophy Review 15 (1999): 47 54. Abstract: John Etchemendy (1990) has argued that Tarski's definition of logical
Philosophical Perspectives, 14, Action and Freedom, 2000 TRANSFER PRINCIPLES AND MORAL RESPONSIBILITY Eleonore Stump Saint Louis University John Martin Fischer University of California, Riverside It is
Are There Reasons to Be Rational? Olav Gjelsvik, University of Oslo The thesis. Among people writing about rationality, few people are more rational than Wlodek Rabinowicz. But are there reasons for being
University of Windsor Scholarship at UWindsor OSSA Conference Archive OSSA 2 May 15th, 9:00 AM - May 17th, 5:00 PM Should We Assess the Basic Premises of an Argument for Truth or Acceptability? Derek Allen
Practical Politics and Philosophical Inquiry: A Note Author(s): Dale Hall and Tariq Modood Reviewed work(s): Source: The Philosophical Quarterly, Vol. 29, No. 117 (Oct., 1979), pp. 340-344 Published by:
ON QUINE, ANALYTICITY, AND MEANING Wylie Breckenridge In sections 5 and 6 of "Two Dogmas" Quine uses holism to argue against there being an analytic-synthetic distinction (ASD). McDermott (2000) claims
The Physical World Author(s): Barry Stroud Source: Proceedings of the Aristotelian Society, New Series, Vol. 87 (1986-1987), pp. 263-277 Published by: Blackwell Publishing on behalf of The Aristotelian
Comments on Truth at A World for Modal Propositions Christopher Menzel Texas A&M University March 16, 2008 Since Arthur Prior first made us aware of the issue, a lot of philosophical thought has gone into
1 The Metaphysics of Perfect Beings, by Michael Almeida. New York: Routledge, 2008. Pp. 190. $105.00 (hardback). GREG WELTY, Southwestern Baptist Theological Seminary. In The Metaphysics of Perfect Beings,
Boghossian & Harman on the analytic theory of the a priori PHIL 83104 November 2, 2011 Both Boghossian and Harman address themselves to the question of whether our a priori knowledge can be explained in
For Philosophy and Phenomenological Research Remarks on a Foundationalist Theory of Truth Anil Gupta University of Pittsburgh I Tim Maudlin s Truth and Paradox offers a theory of truth that arises from
Naturalized Epistemology Quine PY4613 1. What is naturalized Epistemology? a. How is it motivated? b. What are its doctrines? c. Naturalized Epistemology in the context of Quine s philosophy 2. Naturalized
Right-Making, Reference, and Reduction Kent State University BIBLID [0873-626X (2014) 39; pp. 139-145] Abstract The causal theory of reference (CTR) provides a well-articulated and widely-accepted account
1/5 The Critique of Theology The argument of the Transcendental Dialectic has demonstrated that there is no science of rational psychology and that the province of any rational cosmology is strictly limited.
Does Deduction really rest on a more secure epistemological footing than Induction? We argue that, if deduction is taken to at least include classical logic (CL, henceforth), justifying CL - and thus deduction
1 Symposium on Understanding Truth By Scott Soames Précis Philosophy and Phenomenological Research Volume LXV, No. 2, 2002 2 Precis of Understanding Truth Scott Soames Understanding Truth aims to illuminate
Skepticism is True Abraham Meidan Skepticism is True Copyright 2004 Abraham Meidan All rights reserved. Universal Publishers Boca Raton, Florida USA 2004 ISBN: 1-58112-504-6 www.universal-publishers.com