The aim of this paper is to apply inductive logic to the field that, presumably, Carnap never expected: legal causation. Legal causation is expressible in the form of singular causal statements; but it is distinguished from the customary concept of scientific causation, because it is subjective. We try to express this subjectivity within the system of inductive logic. Further, by semantic complement, we compensate a defect found in our application, to be concrete, the impossibility of two-place predicates (for causal (...) relationship) in inductive logic. (shrink)

In a recent paper Michael Tooley has argued that theological statements can be confirmed relative to a phenomenalistic observational language given a certain construal of confirmation. Consequently, he maintains that the verificationist challenge to theological statements, namely that in order to be significant they must be confirmable, can be answered. In this paper I will show that Tooley's argument has serious problems.

This paper is divided into four sections. -/- The first section contains an informal characterization of what may, for the purposes of this discussion, be referred to as the standard interpretation of theological statements. -/- Then, in the second section, I mention two challenges to the commonsense view that theological statements have cognitive content: the quote “falsifiability challenge” and the “ translatability challenge”. -/- Both of these challenges involve an appeal to an empiricist criterion of cognitive content, but (...) I contend that they are nonetheless very different arguments and that clarity about the fundamental issues involved in the question of theology and verificationism cannot be achieved unless these two lines are argument are carefully distinguished. -/- The third section is concerned with the question of the possibility of an empiricist criterion of cognitive significance. The underlying purpose of the discussion will be to arrive derive at an evaluation of the commonly advanced claim that verificationist objections to the meaningfulness of theological language can be refuted by simply arguing that is not possible to formulate an adequate confirmability criterion of cognitive significance. -/- I then conclude by suggesting some responses that seem more promising. (shrink)

Confirmation and falsification are different strategies for testing theories and characterizing the outcomes of those tests. Roughly speaking, confirmation is the act of using evidence or reason to verify or certify that a statement is true, definite, or approximately true, whereas falsification is the act of classifying a statement as false in the light of observation reports. After expounding the intellectual history behind confirmation and falsificationism, reaching back to Plato and Aristotle, I survey some of the main (...) controversial issues and arguments that pertain to the choice between these strategies: the Raven Paradox, the Duhem/Quine problem and the Grue Paradox. Finally, I outline an evolutionary criticism of inductive Bayesian approaches based on my assumption of doxastic involuntarism. (shrink)

Generic statements (e.g., “Birds lay eggs”) express generalizations about categories. In this paper, we hypothesized that there is a paradoxical asymmetry at the core of generic meaning, such that these sentences have extremely strong implications but require little evidence to be judged true. Four experiments confirmed the hypothesized asymmetry: Participants interpreted novel generics such as “Lorches have purple feathers” as referring to nearly all lorches, but they judged the same novel generics to be true given a wide range of (...) prevalence levels (e.g., even when only 10% or 30% of lorches had purple feathers). A second hypothesis, also confirmed by the results, was that novel generic sentences about dangerous or distinctive properties would be more acceptable than generic sentences that were similar but did not have these connotations. In addition to clarifying important aspects of generics’ meaning, these findings are applicable to a range of real-world processes such as stereotyping and political discourse. (shrink)

Does confirmation holism imply meaning holism? A plausible and novel argument, all of whose premises enjoy significant support among contemporary philosophers, links the two theses. This article presents this argument and diagnoses it with a weakness. The weakness illustrates a general difficulty with drawing morals for the nature of ordinary thought and language from claims about the nature of science. The diagnosis is instructive: It suggests more fruitful relations between theories of scientific theory confirmation and semantic theories of (...) our everyday thoughts and statements. (shrink)

The use of idealizations and approximations in scientific explanations poses a problem for traditional philosophical theories of confirmation since, strictly speaking, these sorts of statements are false. Furthermore, in several central cases in the history of science, theoretical predictions seen as confirmatory are not, in any usual sense, even approximately true. As a means of eliminating the puzzling nature of these cases, two theses are proposed. First, explanations consist of idealized deductive-nomological sketches plus what are called modal auxiliaries, (...) i.e., arguments showing that if the idealizations used in the initial conditions are improved, then there will be an improvement in the prediction. Second, a theory is confirmed if it can be shown that its idealized sketches can be improved; similarly, a theory is disconfirmed if its idealized sketches cannot be improved. Several examples are given to illustrate both confirmation and disconfirmation achieved by means of the modal auxiliary. These cases are compared with Scriven's bridge example. (shrink)

Despite the pervasive use of idealizations and approximations in science, the issue of their role has been neglected or misunderstood by philosophers. Idealizations enter into a scientific analysis or explanation in at least two ways. First, they may be embodied in the very statement or formulation of laws and theories; I call such laws idealizational laws. Second, they may be conjoined to a theory as extraneous assumptions, mainly to make it easier to work with the theory. I first examine the (...) problems of testing pertaining to idealizational laws. I argue that the major theories of confirmation face difficulties in accounting for the confirmation and disconfirmation of such laws. Underlying their difficulties is the fact that those laws are about nonexistent objects. The analysis I propose of the testing of idealizational laws is based on the fact that idealized objects comprising the domains of such laws can be approximated by real objects. ;I next investigate the problems of testing in relation to theories and hypotheses which are fed idealizational assumptions and approximations from outside. In the course of my discussion of the issues surrounding the use of idealizations and approximations in science, I critically examine the views of Milton Friedman, Clark Glymour and Ronald Laymon. In the final chapter I propose an analysis of confirmation which is within the Bayesian tradition. My analysis, if correct, is an improvement over the standard Bayesian framework in two respects. First, it is a more realistic representation of the testing process in actual science. Secondly, it is capable of solving "the problem of old evidence," which has recently troubled traditional Bayesianism. Both of these advantages my analysis achieves by taking as the evidence not the observation itself, but the error or discrepancy between the observation and what was predicted by the theory in conjunction with the idealizations and approximations. ;In the Appendix I argue against a prevalent view among physicists and philosophers of science concerning the interpretation of the domain of Newton's second law, viz. the view that the domain of this law, when properly stated, consists of point-masses. (shrink)

The likelihood principle (LP) is a core issue in disagreements between Bayesian and frequentist statistical theories. Yet statements of the LP are often ambiguous, while arguments for why a Bayesian must accept it rely upon unexamined implicit premises. I distinguish two propositions associated with the LP, which I label LP1 and LP2. I maintain that there is a compelling Bayesian argument for LP1, based upon strict conditionalization, standard Bayesian decision theory, and a proposition I call the practical relevance principle. (...) In contrast, I argue that there is no similarly compelling argument for or against LP2. I suggest that these conclusions lead to a restrictedly pluralistic view of Bayesian confirmation measures. (shrink)

Fodor and Lepore, in their recent book "Holism," maintain that if an inference from semantic anatomism to semantic holism is allowed, certain fairly deleterious consequences follow. In Section 1 Fodor and Lepore's terminology is construed and amended where necessary with the result that the aforementioned deleterious consequences are neither so apparent nor straightforward as they had suggested. In Section 2 their "Argument A" is considered in some detail. In Section 3 their "argument attributed to Quine" is examined at length and (...) a shorter and more perspicacious argument suggested which avoids their charge that the Quinean argument is guilty of an equivocation on the word 'statement'. (shrink)

The paper applies confirmation theory to a famous statement of economics, the law of demand, which says that ceteris paribus, prices and quantities demanded change in opposite directions. Today's economists do not accept the law unless definite restrictions hold, and have shown little interest in deciding whether or not these restrictions were satisfied empirically. However, Hildenbrand (1994) has provided a new derivation of the law of aggregate demand and used this theoretical advance to devise a test that may be (...) the first rigorous one ever performed on the law. The paper accounts for Hildenbrand's and, in less detail, his predecessors' contributions within the philosophical framework of Hempel (1965) and Glymour (1980). Its salient result is that economists have accepted the "consequence condition", and rejected the "converse consequence condition", and thus implicitly adhered to a Hempelian- Glymourian view of confirmation and testability. (shrink)

THIS ARTICLE EXAMINES THE CONFIRMATIONIST PRINCIPLE, THAT A STATEMENT IS FACTUALLY MEANINGFUL IF AND ONLY IF IT IS AN OBSERVATION-STATEMENT, OR THERE ARE OBSERVATION STATEMENTS WHICH WOULD CONFIRM OR DISCONFIRM IT. THIS PRINCIPLE IS THE FINAL WEAK CLAIM OF VERIFICATIONISM. EVEN IF TRUE, IT WOULD NOT BE OF GREAT USE IN SORTING OUT THE MEANINGFUL FROM THE MEANINGFULNESS, BUT IT IS SHOWN CONCLUSIVELY TO BE FALSE. A CLAIM THAT THERE IS A DISCREPANCY BETWEEN THE BEST EVIDENCE THAT MEN WILL (...) EVER HAVE ABOUT WHETHER SOME STATE OF AFFAIRS HOLDS AND WHETHER IT DOES HOLD IS FACTUALLY MEANINGFUL BUT NEITHER CONFIRMABLE NOR DISCONFIRMABLE. (shrink)

Two declarative sentences are synonymous if, and only if, the statements they can be used to make are. given certain assumptions about the truth or falsity of other statements, confirmed or disconfirmed to the same degree by the same evidence. This criterion of synonymy is Quinean in that it treats confirmation holistically. But unlike Quine's criterion of synonymy, it conforms to and explains our intuitions of sentence synonymy.

While it is natural to assume that contradiction between alleged witness testimonies to some event disconfirms the event, this generalization is subject to important qualifications. I consider a series of increasingly complex probabilistic cases that help us to understand the effect of contradictions more precisely. Due to the possibility of honest error on a difficult detail even on the part of highly reliable witnesses, agreement on such a detail can confirm H much more than contradiction disconfirms H. It is also (...) possible to model scenarios where we strongly suspect ahead of time that one source has copied another. In these cases, contradiction on a detail due to witness error can even confirm H by disconfirming collusion or copying. Finally, still more complex scenarios show that indirect confirmation, as opposed to exact agreement, provides the “best of both worlds,” simultaneously disconfirming suspected copying while permitting the statements of both sources to be true. (shrink)

Two declarative sentences are synonymous if, and only if, the statements they can be used to make are. given certain assumptions about the truth or falsity of other statements, confirmed or disconfirmed to the same degree by the same evidence. This criterion of synonymy is Quinean in that it treats confirmation holistically. But unlike Quine's criterion of synonymy, it conforms to and explains our intuitions of sentence synonymy.

The Paradox of the Ravens (a.k.a,, The Paradox of Confirmation) is indeed an old chestnut. A great many things have been written and said about this paradox and its implications for the logic of evidential support. The first part of this paper will provide a brief survey of the early history of the paradox. This will include the original formulation of the paradox and the early responses of Hempel, Goodman, and Quine. The second part of the paper will describe (...) attempts to resolve the paradox within a Bayesian framework, and show how to improve upon them. This part begins with a discussion of how probabilistic methods can help to clarify the statement of the paradox itself. And it describes some of the early responses to probabilistic explications. We then inspect the assumptions employed by traditional (canonical) Bayesian approaches to the paradox. These assumptions may appear to be overly strong. So, drawing on weaker assumptions, we formulate a new-and-improved Bayesian confirmation-theoretic resolution of the Paradox of the Ravens. (shrink)

IN THE COURSE OF "CONFIRMABILITY AND FACTUAL MEANINGFULNESS" ("ANALYSIS" VOL. 33) I ARGUED THAT THE CONFIRMATIONIST PRINCIPLE IS FALSE. THIS IS THE PRINCIPLE THAT A STATEMENT IS FACTUALLY MEANINGFUL IF AND ONLY IF IT IS AN OBSERVATION STATEMENT OR CONFIRMABLE BY OBSERVATION STATEMENTS. MY ARGUMENT CONSISTED IN PRODUCING EXAMPLES OF FACTUALLY MEANINGFUL STATEMENTS WHICH FAIL TO SATISFY THE PRINCIPLE. IN "CONFIRMABILITY AND MEANINGFULNESS" ("ANALYSIS" VOL. 34) R I SIKORA ARGUED THAT MY EXAMPLES DO NOT SUPPORT MY CONCLUSION. HERE (...) I REPHRASE THE EXAMPLES SO AS TO MEET SIKORA’S OBJECTIONS. THEY ARE EXAMPLES OF STATEMENTS WHICH ASSERT THE TRUTH OF STATEMENTS WHICH HAVE A CERTAIN FIXED PROBABILITY ON THE BEST EVIDENCE WHICH WILL EVER BE OBTAINED. (shrink)

The so‐called problem of irrelevant conjunction has been seen as a serious challenge for theories of confirmation. It involves the consequences of conjoining irrelevant statements to a hypothesis that is confirmed by some piece of evidence. Following Hawthorne and Fitelson, we reconstruct the problem with reference to Bayesian confirmation theory. Then we extend it to the case of conjoining irrelevant statements to a hypothesis that is dis confirmed by some piece of evidence. As a consequence, we (...) obtain and formally present a novel and more troublesome problem of irrelevant conjunction. We conclude by indicating a possible solution based on a measure‐sensitive approach and by critically discussing a major alternative way to address the problem. *Received December 2008; revised August 2009. †To contact the authors, please write to: Department of Philosophy, University of Turin, via Sant'Ottavio 20, 10124 Turin, Italy; e‐mail: vincenzo.crupi@unito.it ; katya.tentori@unitn.it or k.tentori@ucl.ac.uk. (shrink)

Recent works in epistemology show that the claim that coherence is truth conducive – in the sense that, given suitable ceteris paribus conditions, more coherent sets of statements are always more probable – is dubious and possibly false. From this, it does not follows that coherence is a useless notion in epistemology and philosophy of science. Dietrich and Moretti (Philosophy of science 72(3): 403–424, 2005) have proposed a formal of account of how coherence is confirmation conducive—that is, of (...) how the coherence of a set of statements facilitates the confirmation of such statements. This account is grounded in two confirmation transmission properties that are satisfied by some of the measures of coherence recently proposed in the literature. These properties explicate everyday and scientific uses of coherence. In his paper, I review the main findings of Dietrich and Moretti (2005) and define two evidence-gathering properties that are satisfied by the same measures of coherence and constitute further ways in which coherence is confirmation conducive. At least one of these properties vindicates important applications of the notion of coherence in everyday life and in science. (shrink)

This paper proposes an analysis of statements about universals according to which such statements assert nothing more than that the evidence we’d take to confirm them obtains, where this evidence is understood to consist solely of patterns in the behavior of particulars that cannot be explained by other regularities in the way things behave. On this analysis, to say that a universal exists is simply to say that there is such a pattern in the behavior of certain particulars, (...) and for any predicate F that is presumed to correspond to a universal, to say that a particular is F is simply to say that its behavior exhibits a pattern of this sort. I argue that there is no theoretical work that we want postulations and ascriptions of universals to do that they’d be unfit for if analyzed in this way, and consequently that there is no reason to treat such statements as asserting anything more than what the proposed analysis suggests. (shrink)

According to all traditional theories of confirmation, statements such as “E confirms H” (where H is a hypothesis and E is the evidence that supports H) are a priori. Peter Achinstein has recently challenged this orthodox position. He claims that at least some confirmation statements are empirical. In this paper I criticize this thesis. I first show that Achinstein´s arguments are either flawed or inconclusive. I then argue that there are strong reasons to conceive of all (...) confirmation statements as a priori. I conclude that inductive logic, if possible, must be a priori knowledge. (shrink)

The author discusses some difficulties involved in the application of "degree of confirmation" to the confirmation of lawlike-statements. An alternative analysis is proposed, which is based on interval estimation. It is argued that this analysis is superior to the criticized method, in that it is better able to show how instantial confirmations are inductively relevant to a law, and in that it requires fewer undesirable extra-logical assumptions.

The Paradox of the Ravens (a.k.a,, The Paradox of Confirmation) is indeed an old chestnut. A great many things have been written and said about this paradox and its implications for the logic of evidential support. The first part of this paper will provide a brief survey of the early history of the paradox. This will include the original formulation of the paradox and the early responses of Hempel, Goodman, and Quine. The second part of the paper will describe (...) attempts to resolve the paradox within a Bayesian framework, and show how to improve upon them. This part begins with a discussion of how probabilistic methods can help to clarify the statement of the paradox itself. And it describes some of the early responses to probabilistic explications. We then inspect the assumptions employed by traditional (canonical) Bayesian approaches to the paradox. These assumptions may appear to be overly strong. So, drawing on weaker assumptions, we formulate a new-and-improved Bayesian confirmation-theoretic resolution of the Paradox of the Ravens. (shrink)

The emotion of surprise entails a complex of immediate responses, such as cognitive interruption, attention allocation to, and more systematic processing of the surprising stimulus. All these processes serve the ultimate function to increase processing depth and thus cognitively master the surprising stimulus. The present account introduces phasic negative affect as the underlying mechanism responsible for this switch in operating mode. Surprising stimuli are schema-discrepant and thus entail cognitive disfluency, which elicits immediate negative affect. This affect in turn works like (...) a phasic cognitive tuning switching the current processing mode from more automatic and heuristic to more systematic and reflective processing. Directly testing the initial elicitation of negative affect by surprising events, the present experiment presented high and low surprising neutral trivia statements to N = 28 participants while assessing their spontaneous facial expressions via facial electromyography. High compared to low surprising trivia elicited higher corrugator activity, indicative of negative affect and mental effort, while leaving zygomaticus (positive affect) and frontalis (cultural surprise expression) activity unaffected. Future research shall investigate the mediating role of negative affect in eliciting surprise-related outcomes. (shrink)

This paper discusses an almost sixty year old problem in the philosophy of science -- that of a logic of confirmation. We present a new analysis of Carl G. Hempel's conditions of adequacy (Hempel 1945), differing from the one Carnap gave in §87 of his Logical Foundations of Probability (1962). Hempel, it is argued, felt the need for two concepts of confirmation: one aiming at true theories and another aiming at informative theories. However, he also realized that these (...) two concepts are conflicting, and he gave up the concept of confirmation aiming at informative theories. We then show that one can have Hempel's cake and eat it, too: There is a (rank-theoretic and genuinely nonmonotonic) logic of confirmation -- or rather, theory assessment -- that takes into account both of these two conflicting aspects. According to this logic, a statement H is an acceptable theory for the data E if and only if H is both sufficiently plausible given E and sufficiently informative about E. Finally, the logic sheds new light on Carnap's analysis (and solves another problem of confirmation theory). (shrink)

Due to their acceptance of the verifiability principle, the only way left for logical positivists to argue for the meaningfulness of religious language was to accept some sort of emotivistic conception of it or to reduce it to the description of religious attitude. The verifiability principle, however, suffers from some severe limitations that make it inadequate as a criterion for cognitive meaning. To resolve these problems, logical positivists gave up the requirement of conclusive verifiability and defended a sort of ‘liberalization’ (...) of the verifiability principle. Carnap’s confirmability criterion for cognitive meaning, which is a liberalized form of the verifiability principle, is compatible with an orthodox conception of religious language since, from a theistic perspective, the existence of God can be confirmed through our observational statements. (shrink)

The statements traditionally labelled “necessary,” among them the valid theorems of mathematics and logic, are identified as “those whose truth is independent of experience.” The “truth” of a necessary statement has to be independent of the truth or falsity of experiential statements; a necessary statement can be neither confirmed nor refuted by empirical tests.The admission of genuinely necessary statements presents the empiricist with a troublesome problem. For an empiricist may be defined, in terms of the current idiom, (...) as one who adheres to some version, however “weak,” of a principle of verifiability. One, that is, who claims that no statement can have cognitive meaning unless its truth depends, however indirectly, upon the truth of experiential statements; unless it can be provisionally confirrned or refuted by empirical tests. Allowing that some necessary statements have cognitive meaning, then, would be to provide a prima facie case against the validity of the principle of verifiability. (shrink)

B-events are matters which are better known to listeners than to speakers. This paper studies the detectives’ use of B-event statements in two different environments in their interactions with suspects/witnesses. The first type of environment are relatively co-operative sequences during which the aim is the reconstruction of events and constructing the record; here, B-event statements are realised as confirmation seeking questions. The second type of environment, a hostile interactional environment, is composed of argumentative sequences in which detectives (...) aim to determine who are the perpetrators of crimes; in these sequences, the detectives’ B-event statements are realised as accusations. While performing the two activities, the detectives signal different epistemic levels and stances at the turn level. Thus, the former B-event statements are mostly epistemically downgraded, while the latter are mostly upgraded, in order to facilitate undertaking these different activities during police questioning. (shrink)

To solve the highly counterintuitive paradox of confirmation represented by the statement, “A pair of red shoes confirms that all ravens are black,” Hempel employed a strategy that retained the equivalence condition but abandoned Nicod’s irrelevance condition. However, his use of the equivalence condition is fairly ad hoc, raising doubts about its applicability to this problem. Furthermore, applying the irrelevance condition from Nicod’s criterion does not necessarily lead to paradoxes, nor does discarding it prevent the emergence of paradoxes. Hempel’s (...) approach fails to adequately resolve the paradox. (shrink)

In order to confirm any statement of the form A are B we consider a sufficiently large number of A in order to check them for having or failing to have property B. But logic leads us to believe that A are B is equivalent to non-B are non-A. If this is so then it seems reasonable to suppose that we confirm and in the same way. Whatever set of things we consider for confirming one must be the same set (...) that we consider for the other. Yet in confirming the set considered seems to be the set of A, while in confirming the set considered seems to be the set of non-B. How can two logically equivalent statements be confirmable in different ways? (shrink)

Gentzen's account of logical consequence is extended so as to become a matter of degree. We characterize and study two kinds of function G, where G(X,Y) takes values between 0 and 1, which represent the degree to which the set X of statements (understood conjunctively) logically implies the set Y of statements (understood disjunctively). It is then shown that these functions are essentially the same as the absolute and the relative probability functions described by Carnap.

This publication examines in a historical-scientific context some of the assertions and statements of S. Fuller’s article “Galileo’s truth: prolegomena to Feyerabendian research ethics” published in this issue of the journal. The main emphasis is placed on the critical analysis of the “logic of Galileo’s situation in the spirit of historical re-enactment” proposed by S. Fuller’s and “the lessons that Galileo would have drawn” from the situation of his time. The author of this article believes that the most controversial (...) point in the work of S. Fuller, if we evaluate it from the historical-scientific point of view, is the construction of an extremely idealized model of Galileo’s personality and worldview and historical background without due consideration of what is currently known about the Italian scientist and his epoch. (shrink)

Some proponents of the indispensability argument for mathematical realism maintain that the empirical evidence that confirms our best scientific theories and explanations also confirms their pure mathematical components. I show that the falsity of this view follows from three highly plausible theses, two of which concern the nature of mathematical application and the other the nature of empirical confirmation. The first is that the background mathematical theories suitable for use in science are conservative in the sense outlined by Hartry (...) Field. The second is that the empirical relevance of mathematical statements suitable for use in science is mediated by their non-mathematical consequences. The third is that statements receive additional empirical confirmation only by way of generating additional empirical expectations. Since each of these is a thesis we have good reason to endorse, my argument poses a challenge to anyone who argues that science affords empirical grounds for mathematical realism. (shrink)

Exhumation and study of the 1945 paradox of confirmation brings out the defect of its formulation. In the context of quantifier conditional-probability logic it is shown that a repair can be accomplished if the truth-functional conditional used in the statement of the paradox is replaced with a connective that is appropriate to the probabilistic context. Description of the quantifier probability logic involved in the resolution of the paradox is presented in stages. Careful distinction is maintained between a formal logic (...) language and its semantics, as the same language may be outfitted with different semantics. An acquaintance with sections 1? 5 of Hailperin (2006) covering the sentential aspects of probability logic is assumed as background information for quantifier probability logic. (shrink)

In the article the basic procedures for finding of connective elements and resolving conflicts of references is analyzed. On the basis of this, a generalized algorithm is proposed that combines advantages of existing procedures for search for connective elements between phrases. The advantages of the selected procedures and their sequence are described, the formal description of input data and the results of the algorithm are presented. To optimize the procedure for scanning the text, the algorithm is performed as an iterative (...) reduction of the candidates for communication elements. This is achieved through the confirmation of non-conflict links and the gradual resolution of conflicts. (shrink)

Carl G. Hempel has often stated that inductive-statistical explanations, as he conceives them, are inductive arguments. This discussion note raises the question of whether such arguments are to be understood as (1) arguments of the traditional sort, containing premises and conclusions, governed by some sort of inductive "acceptance rules," or (2) something more closely akin to Carnap's degree of confirmation statements which occur in an inductive logic which entirely eschews inductive "acceptance rules." Hempel's writings do not seem unequivocal (...) on this issue. It is suggested that adoption of construal (2) would remove the need for Hempel's high probability requirement on I-S explanations. (shrink)

This chapter focuses on one of the common fallacies in Western philosophy, 'denying the antecedent'. Like affirming the consequent, denying the antecedent is also a fallacious form of reasoning in formal logic. This time the problem occurs when the minor premise of a propositional syllogism denies the antecedent of a conditional statement. Denying the antecedent makes the mistake of assuming that if the antecedent is denied, then the consequent must also be denied. Like modus ponens, modus tollens is a valid (...) argument form because the truth of the premises guarantees the truth of the conclusion; however, like affirming the consequent, denying the antecedent is an invalid argument form because the truth of the premises does not guarantee the truth of the conclusion. The invalidity of denying the antecedent is confirmed by a truth table presented in the chapter. (shrink)

In this paper, I focus on the so-called "tacking by disjunction problem". Namely, the problem to the effect that, if a hypothesis H is confirmed by a statement E, H is confirmed by the disjunction E v F, for whatever statement F. I show that the attempt to settle this difficulty made by Grimes 1990, in a paper apparently forgotten by today methodologists, is irremediably faulty.

This paper provides an analysis of Martin Buber’s not very well-known essay “Distance and Relation”, which is his most relevant contribution to philosophical anthropology. In the essay, which was published almost thirty years after the publication of his most famous book, I and Thou, Buber elaborated on the anthropological foundations of his cosmic vision of dialogical life. The central question is “How is man possible?” Buber’s answer is very important to the further development of his principle of dialogue in psychology (...) (primarily his notion of confirmation) and philosophy of art, but it is not quite clear how compatible it is with some of his earlier theses from I and Thou. In particular, the relation between “distance” and the I-It relation is unclear. There are two seemingly contradictory statements: “In the beginning is the relation” and “The primal distance is a presupposition of the relation”. The aim of this paper is to examine these anthropological foundations and to elucidate this apparent contradiction. (shrink)

This paper is an examination of evidential holism, a prominent position in epistemology and the philosophy of science which claims that experiments only ever confirm or refute entire theories. The position is historically associated with W.V. Quine, and it is at once both popular and notorious, as well as being largely under-described. But even though there’s no univocal statement of what holism is or what it does, philosophers have nevertheless made substantial assumptions about its content and its truth. Moreover they (...) have drawn controversial and important conclusions from these assumptions. In this paper I distinguish three types of evidential holism and argue that the most oft-cited and controversial thesis is entirely unmotivated. The other two theses are much overlooked, but are well-motivated and free from controversial implications. (shrink)

This chapter focuses on one of the common fallacies in Western philosophy called 'subjective validation'. An objective validation of a statement can be accomplished by showing that the statement actually matches up to the way the world is; this can be done by comparing the statement to the world itself. Combined with other mistakes, like confirmation bias and availability error, subjective validation can fool people into thinking that psychics can read their minds, predict the future, or even communicate with (...) the dead. Although the subjective validation of Nostradamus's “predictions” doesn't fuel much else besides silly beliefs in the paranormal, falling prey to subjective validation can be much more costly. The same subjective validation “retrodiction” techniques are also used to interpret the prophecies of the Bible, like those that are supposedly in the Book of Revelation. (shrink)

Background: In the context of new reimbursement systems like diagnosis-related groups, moral distress is becoming a growing problem for healthcare providers. Moral distress can trigger emotional and physical reactions in nurses and can cause them to withdraw emotionally from patients or can cause them to change their work place. Objective: The aim of this pilot study was to develop an instrument to measure moral distress among acute care nurses in the German-speaking context, to test its applicability, and to obtain initial (...) indications of the instrument’s validity. Method: The study was designed in 2011 as a cross-sectional pilot survey. Conducted on eight units of one university hospital in German-speaking Switzerland, 294 registered nurses were asked to fill out a web-based questionnaire on moral distress. Ethical considerations: The study proposal was approved by the cantonal ethics committee. All participating nurses provided informed consent and were assured of data confidentiality. Results: The survey had a response rate of 55%. The results show the prevalence of statements on the questionnaire indicating situations with the potential to trigger moral distress. The entire range of answers was used in the responses. Most participants found the questionnaire comprehensible, while some criticized the phraseology of certain statements. Many more found the registration process prior to online access to be too time consuming. Nurses confirmed that the results reflect their subjective assessment of their situation and their experience of moral distress. Conclusion: The newly developed moral distress questionnaire appears to produce face validity and is sufficiently applicable for use in our study. The results indicate that moral distress appears to be a relevant phenomenon also in Swiss hospitals and that nurses were experiencing it prior to the introduction of Swiss diagnosis-related groups. (shrink)

APA PsycNET abstract: This is the first volume of a two-volume work on Probability and Induction. Because the writer holds that probability logic is identical with inductive logic, this work is devoted to philosophical problems concerning the nature of probability and inductive reasoning. The author rejects a statistical frequency basis for probability in favor of a logical relation between two statements or propositions. Probability "is the degree of confirmation of a hypothesis (or conclusion) on the basis of some (...) given evidence (or premises)." Furthermore, all principles and theorems of inductive logic are analytic, and the entire system is to be constructed by means of symbolic logic and semantic methods. This means that the author confines himself to the formalistic procedures of word and symbol systems. The resulting sentence or language structures are presumed to separate off logic from all subjectivist or psychological elements. Despite the abstractionism, the claim is made that if an inductive probability system of logic can be constructed it will have its practical application in mathematical statistics, and in various sciences. 16-page bibliography. (PsycINFO Database Record (c) 2016 APA, all rights reserved). (shrink)

The notion that metaphorical statements are strictly false suggests that all statements, even those that seemed ‘literal’, are false, as none can ‘literally’ reflect reality. Statements about what we perceive or could perceive rely on evoking sensory images of such ‘visibles’, even though we have no direct access to what others, may perceive. In addition to what is visible, we must also deal with ‘invisibilia’ (both the fantasms that respectable moderns now reject and the realities that lie (...) beyond or before all sentient experience). Talking about such distant or long-ago realities must always be ‘metaphorical’, as they cannot have any of the merely ‘subjective’ properties of experience, nor do they explain those latter properties. Is there some way of confirming the brute conviction that there is a ‘real and intelligible world’, and that we can find it out or describe it ‘literally’? May ‘Reason’ be a route to understanding? But this too is an illusion: we seem never in practice to escape contradictions and had perhaps better turn again to consider the worlds of experience to which we are confined. What we experience is conditioned by our imagination: whether that metaphorical imagination points beyond experience remains uncertain. (shrink)

A logical empiricist “baseline statement” can formalize some propositions established by a body of evidence or set of observations. However, it may not necessarily capture, of two propositions it entails, whether all the subsets of the evidence that establish one proposition also establish the other, vice versa, or neither. Yet, according to this paper, which obtains should sometimes matter for confirmation. It illustrates by showing how this “evidential dependence” can be used to address problems with generalizations of grue-like predicates, (...) and do so still within a very simple broadly Hempelian framework. (shrink)

Praise be to Allah and peace and blessings be upon the Messenger of Allah and his family and companions, and after: This research tagged with: "Family security is a legitimate purpose to achieve human security" aims to show the importance of family security, and how the Sharia paid great attention to it, and stressed the need to maintain it in all psychological, health, physical, economic and moral fields as the family is the first basic social unit and nucleus, which is (...) based on preserving it, the preservation of the human species, its security and stability, and thus the negligence of it is negligence of the human race and the human species as a whole. This research is supported by legal or Sharia ‘s texts that make it clear that achieving family security is a legitimate goal given great care by Islam, and there is no evidence of this clearer than the rotation of legal provisions either lawful or unlawful around the protection of the family: its religion, soul, mind, dignity and wealth, which preservation ot them represents the preservation of the highest levels of interests, and is called the five necessities. This research came after mentioning the legal texts supported by human studies and experiences as a source of knowledge that benefits the human race, and in support of what was stated in the legal texts of facts and results of interest that may increase the stability of the Muslim and his faith, and highlight the bright face of Sharia, away from other projects and trends that are imposed under the media noise and various pressures, despite the clarity of their destructive effects on the family and human society. The sufferings that were resulted of these devastating effects appered every where, that causes reluctance to show the truth and the beneficial and useful consequent of them, and therefore this research came as a contribution to the promotion and protection of family security as a legitimate purpose to achieve human security, where it included an introduction, seven investigations, results and conclusion. The first section included clarification of the truth of the purposes of Sharia, its sections and ranks, as the second section included confirmation that the role of women is large and important in the protection of family security and that their position in the family is responsible not hired, then the third and fourth sections indicated how Islam achieved health security and protected the family from physical and psychological diseases that may affect its members, then the fifth section showed how to achieve economic and living security, and the sixth section included a statement of how Islam achieved security for the family and protected it from extinction and weak reproduction, which endangers countries and the lack of renewal of generations resulting from the lack of births, while the seventh section dealt with the statement of how Islam achieved security for the family and protected it from crime that targets its foundation and entity. Praise be to Allah, Lord of the Worlds, and may Allah's prayers and peace be upon our Prophet Mohamed, his family and companions as a whole. (shrink)

Although postgraduate research is increasingly supported through the formalisation of supervision and programs providing generic support, those programs have seldom addressed the intention, often stated by universities in their graduate profiles, that postgraduates should have integrity, and ethical values. What methodology is required – how will universities support students to cultivate such sensitivity, assess this, and fulfill the expectation? The paper provides evidence that quality statements including some aspect of integrity are used in many UK and Australian universities. The (...) importance of integrity, or ethical behaviour more generally, in postgraduate degrees and in professional practice is confirmed by reference to Sandor Kopatsy’s model of intellectual capital, where knowledge, morality, talent and effort are multiplied together to determine the level of intellectual capital. The main section of the paper considers how assessment might be achieved and the desired qualities fostered. Three distinct forms of moral qualities or skills can be found among those identified by the universities – some refer to technical skills, some describe graduates sensitive to ethical and social issues and some talk of graduates committed to ethical action and social responsibility. The paper draws on the authors’ experience in Europe, Australia and Asia. (shrink)

Plato’s statements on art have met with countless commentators and almost as many different interpretations. In most cases, comments and hints that are scattered through various dialogues are taken out of context and played off against each other – depending on whether the intention is to portray Plato as a modern art lover or as an ageing political reactionary. In the face of the confusing range of contending opinions, there is an urgent need to examine and clarify the textual (...) basis in Plato. For this purpose, a meticulous analysis of Book 10 of the Politeia is initially carried out – the only part of the corpus of Plato’s works that is concerned with art in detail and exclusively. The results are surprisingly clear. The corrupting and dangerous aspect of art is not attributed to individual artists or a specific artistic orientation, nor to the style of the depiction, nor to the content that is narrated or presented; instead, it is ascribed to its essential nature as the μίμησις of a μίμησις. Since even the objects of sense perception are imitations of the archetypal Ideas, which are ultimately accessible only to rational cognition, the artist is an imitator of something imitated. He merely touches on the appearance of a reality that is in turn already a defective, mutable and ephemeral imitation of the only true, immutable and eternal archetypal Ideas. As the imitation of an imitation, art is insurmountably distant from truth and knowledge, ontologically and therefore also epistemologically worthless and useless – and also damaging, because it attempts to shackle us and domesticate us at a level three steps below truth. However, it not only holds us captive, but also corrupts us even further by appealing not to reason, but to the lower part of the soul with its desires and affections. It is because of this that it is corrupting and dangerous, initially for the individual character and individual spiritual welfare, and ultimately – through the individual – also for human society as a whole. Art thus creates precisely the situation which for the philosopher represents the fundamentally distorted condition from which he is attempting to liberate people. Art is constantly re-fastening the shackles that the philosopher releases. This is why art has to be excluded from Plato’s ideal state, with philosophy alone taking its place. The condemnation of all forms of art could not be expressed more clearly. Despite this, repeated efforts have been made to weaken the condemnation or even disprove its existence, either in order to save art from Plato or, conversely, to save Plato from condemning art. To achieve this, alleged contradictions between Books 10 and 3 of the Politeia have been pointed out ; a differentiation or alteration in Plato’s understanding of the concept of μίμησις has been postulated; and reference has been made to passages in Plato’s works in which, it is claimed, the philosopher concedes that art has direct access to the world of the Ideas or in which he speaks of the artist’s divine inspiration , as well as the numerous passages that discuss Beauty . Finally, it is claimed that Plato did not condemn all art, but only a certain contemporary trend in art , or more generally, only illusionistic art in contrast to an abstract form of art – namely Egyptian art . In the second part of the study, these lines of argumentation are discussed individually and in detail and their content is tested. In each case, the findings obtained initially in the analysis of Book 10 of the Politeia are confirmed. The present study does not offer any new hypotheses; instead, its goal is to use a detailed and differentiated examination of the relevant texts to clearly distinguish Plato’s view of art from later neo-Platonic views, as well as from obfuscations created by modern interpreters, in order to obtain a secure basis for future investigations of Plato’s view of art in particular, as well as of ancient aesthetics in general. The extensive review of the secondary literature also documents part of the history of twentieth-century scholarship. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Antiphon on Time (B9 D-K)Francis M. DunnThe simplest and clearest formulation of Antiphon's understanding of time is the statement that time is a concept or measure, not a substance (87 B9 Diels-Kranz). This fragment is regularly cited in discussions of Antiphon, but Richard Sorabji has stated that it belongs not to Antiphon the sophist but to a minor peripatetic. He gives no argument in support of this statement,1 but (...) given the potential importance of this fragment both for the views of Antiphon and for early theories of time, we must consider whether or not its attribution is secure.Antiphon or Antiphanes?Fragment 9 in Diels-Kranz is a brief entry from the Placita of Aetius (1.22.6) under the heading, preserved in Stobaeus (1.8.40b):2P, F mrg., PhotiusIn the text of Diels-Kranz, emphasis is used to distinguish the quote or citation proper (νόημα ) from the gloss or clarification that accompanies it (). The distinction seems to me correct: since it is not immediately obvious what it means to regard time as a "concept or measure" (and two thinkers may have done so in different ways), the gloss is an attempt by the compiler to delimit this (shared) view. The delimiting term is relatively late ( with the implied meaning "substance" is not attested before Aristotle and Theophrastus; [End Page 65] cf. LSJ sv III). So if the first thinker cited is Antiphon the sophist, usage confirms that the term was later supplied by the compiler; on the other hand, if we suspend judgment on the identity of Antiphon (or Antiphanes), this late usage does not help to date the view that time is νόημα.This brings us to the attribution of the fragment: was Diels correct in printing? and was he correct in identifying this figure as the Athenian sophist? Taking the first question first, we must consider the possibility that the marginal gloss in F was meant as a correction, and that the lemma assigning the fragment to Antiphanes should be followed. Context, however, clearly indicates otherwise. Under the rubric, the compiler of the Placita3 has assembled the views of various philosophers: Plato, Xenocrates, Hestiaeus of Perinthus, Straton, Epicurus, Critolaus and the Stoics (1.22.1-7). Antiphon the sophist is repeatedly cited in this compilation (2.20.15, 2.28.4, 2.29.3, 3.16.4), whereas Antiphanes the comic poet is never cited at all. The textual confusion arose because this portion of the Placita was extracted by Stobaeus, who also quoted profusely from Antiphanes and other comic poets. To scribes copying Stobaeus, the playwright's name suggested itself more readily than that of the sophist, and the former therefore began to replace the latter.4I have assumed so far (as all editors have done) that the textual variants and entail a choice between Antiphon the sophist and Antiphanes the comic poet. Faced with such a choice, we must choose Antiphon, but Sorabji suggests a third alternative, namely that Antiphon or Antiphanes is a late and obscure peripatetic philosopher. What are the merits of such a suggestion?A Minor Peripatetic?Sorabji's Antiphon (or Antiphanes) is so obscure that he has otherwise vanished without leaving a trace. We must therefore decide if it is [End Page 66] likely that the Placita not only cited such an individual, but made no attempt to distinguish him from well-known authors who bore the same name. It is worth noting that the compiler of the Placita made no particular attempt to rescue from oblivion the beliefs of insignificant thinkers. Under each rubric he is chiefly concerned with reporting the doctrines of influential philosophers such as Thales, Democritus or Aristotle. The range of views on a given topic may be broadened by including lesser figures, but these are almost always easily identifiable and well-attested in other sources. The reasons for the flooding of the Nile (4.1), for example, are taken from Thales, Anaxagoras, Democritus, Eudoxus, Herodotus and Ephorus; the notion that the river is filled from a fresh-water sea is cited from a lesser figure, Euthymenes of Massilia, who is therefore identified by his place of birth... (shrink)