Some studies have reported that, under some circumstances, participants sometimes reject the truth of conditional premises and give incorrect uncertain conclusions to MP and MT, despite the standard instructions to assume the truth of the premises. Instructions that emphasise the logical nature of the task, on the other hand, increase the number of valid conclusions to these two inferences. In this paper, we examine two possible explanations for the influence of instructions on the production of valid conclusions: (1) instructions trigger (...) a logical mode of thinking that is appropriate for the task to be solved, and (2) instructions affect the way that retrieved information is used when constructing a mental representation of the premises. In order to compare these two hypothesis, we used conditional causal relations having either many or few disabling conditions (i.e. cases of P and not-Q) and presented them in four different instructional conditions. When presented with the standard instructions to suppose the premises to be true, MP and MT inferences show a relatively low percentage of valid conclusions. However, when the logical nature of the task and the necessity to assume the truth of the premises are emphasised, the number of valid conclusions greatly increases. Also, if disabling conditions are made explicit or generated before the presentation of these logical instructions, the performance on MP and MT is lower than when only the logical instructions are presented. Finally, the instructions had no effect on AC and DA. From these results, we concluded that the instructions had an effect on the use of retrieved information rather than on inducing different modes of thinking. (shrink)

This study examined the hypothesis that a key process in conditional reasoning with concrete premises involves on-line retrieval of information about potential alternate antecedents. Participants were asked to solve reasoning problems with causal conditional premises (If cause P then effect Q). These premises were inserted into short contexts. The availability of potential alternatives was varied from one context to another by adding statements that explicitly invalidated one or more of these alternatives (i.e., other causes that lead to the effect Q). (...) The invalidated alternatives differed in the degree of their semantic association to the consequent term (Q). The results show that the effect of invalidating one or more potential alternatives on the two uncertain logical forms, AC and DA, was largely determined by their relative associative strength. These results strongly support a model for conditional reasoning with causal premises that supposes that a key element in responding to the uncertain logical forms is on-line retrieval of at least one potential alternative antecedent. (shrink)

This study examined the hypothesis that conditional reasoning involves visual short-term memory resources (Johnson-Laird, 1985). A total of 147 university students were given measures of verbal and visual short-term memory capacity and a series of concrete and abstract conditional reasoning problems. Results indicate that there is a positive correlation between verbal working memory capacity and reasoning with both concrete and abstract premises. A positive correlation was also obtained between visual working memory capacity and reasoning with concrete premises.

Mental model theory has been used to explain many differing phenomena in adult reasoning, including the extensively studied case of conditional reasoning. However, the current theory makes predictions about the development of conditional reasoning that are not consistent with data. In this article, young children's performance on conditional reasoning problems and the justifications given are analysed. A mental model account of conditional reasoning is proposed that assumes that (1) young children can reason with two models and (2) the fleshing out (...) of conditionals involves activation of information in semantic memory that uses the minor premise as a retrieval cue. (shrink)

As stressed by Perruchet & Vinter, the SOC model echoes Johnson-Laird's mental model theory. Indeed, the latter rejects rule-based processing and assumes that reasoning is achieved through the manipulation of conscious representations. However, the mental model theory as well as its modified versions resorts to the abstraction of complex schemas and some form of implicit logic that seems incompatible with the SOC approach.

The extent to which belief revision is affected by systematic variability and direct experience of a conditional (if A then B) relation was examined in two studies. The first used a computer generated apparatus. This presented two rows of 5 objects. Pressing one of the top objects resulted in one of the bottom objects being lit up. The 139 adult participants were given one of two levels of experience (5 or 15 trials) and one of two types of apparatus. One (...) of these was completely uniform, while the other had an element that randomly alternated in its result. Following the testing of the apparatus, participants were asked to rate their certainty of the action of the middle element, which was always uniform (the AB belief). Then they were told of an observation inconsistent with this belief. Participants were then asked whether they considered the AB belief or the anecdotal observation to be more believable. Results showed that increased experience decreased the tendency to reject the AB belief, when the apparatus did not have any randomness. However, the presence of a single element showing random variation in the system strongly increased rejection of this belief. A second study looked at the effect of a single random element on a mechanical system as well as an electronic system using graphical representations. This confirmed the generality of the effect of randomness on belief revision, and provided support for the effects of embedding a belief into a system of relations. These results provide some insight into the complex factors that determine belief revision. (shrink)

ABSTRACTStudies examining the interpretation that is given to if–then statementstypically use what are referred to as basic conditionals, which give contextless relations between two unrelated concrete terms. However, there is some evidence that basic conditionals require a more abstract form of representation. In order to examine this, we presented participants with truth-table tasks involving either basic conditionals or conditionals referring to imaginary categories, and standard conditional inference tasks with abstract and familiar premises. As expected, fewer typical defective conditional interpretations were (...) given to basic conditionals. In addition, partial correlations showed a unique relationship between the interpretation of basic conditionals and abstract inferential reasoning. Results suggest that people process basic conditionals as a form of abstract reasoning, and that the interpretation of conditionals... (shrink)

A total of 152 students were asked to respond to a series of causal conditional (“If P then Q”) inferences with major premises for which there was variable access to information contradicting the premises. Half the students were given 12.5 s for each inference, the other half were given 8.5 s. The percentage of accepted inferences was significantly lower when the time was shorter for the MP and MT inferences, but no effect was observed for the AC and DA inferences. (...) Results are interpreted as supporting the idea that inhibition of retrieved information contradicting the premise is necessary to explain reasoning with the MP and MT inferences under logical instructions (Markovits & Barrouillet, 2002). (shrink)

Byrne's book makes a strong case for the important role of imagination as a creator of possibilities that are used to understand complex relations, while remaining rational. I suggest that imagination also serves a critical developmental role by creating possibilities that are not rational, and that act to modify the nature of the cognitive processes that are used to define rationality.

Democracy has been a flawed hegemony since the fall of communism. Its flexibility, its commitment to equality of representation, and its recognition of the legitimacy of opposition politics are all positive features for political institutions. But democracy has many deficiencies: it is all too easily held hostage by powerful interests; it often fails to advance social justice; and it does not cope well with a number of features of the political landscape, such as political identities, boundary disputes, and environmental crises. (...) Although democracy is valuable it fits uneasily with other political values and is in many respects less than equal to the demands it confronts. In this volume prominent political theorists and social scientists present original discussions of such central issues. Democracy's Values deals with the nature and value of democracy, particularly the tensions between it and such goods as justice, equality, efficiency, and freedom. (shrink)

In his new book the eminent Kant scholar Henry Allison provides an innovative and comprehensive interpretation of Kant's concept of freedom. The author analyzes the concept and discusses the role it plays in Kant's moral philosophy and psychology. He also considers in full detail the critical literature on the subject from Kant's own time to the present day. In the first part Professor Allison argues that at the centre of the Critique of Pure Reason there is the foundation (...) for a coherent general theory of rational agency. The second part employs this account of rational agency as a key to understanding Kant's concept of moral agency and associated moral psychology. The third part focuses on Kant's attempt to ground both moral law and freedom in the Groundwork and the Critique of Practical Reason. This is a major contribution to the interpretation of Kant which will be of special interest to scholars and graduate students of Kant's moral theory. (shrink)

Do children have a theory of mind? If they do, at what age is it acquired? What is the content of the theory, and how does it differ from that of adults? The Child's Theory of Mind integrates the diverse strands of this rapidly expanding field of study. It charts children's knowledge about a fundamental topic - the mind - and characterizes that developing knowledge as a coherent commonsense theory, strongly advancing the understanding of everyday theories as well as the (...) commonsense theory of mind. Wellman presents evidence that children as young as age three do possess a commonsense theory of mind - that they grasp the distinction between mental constructs and physical entities and that they have an understanding of the relationship between individuals' mental states and their overt actions. He delves in detail into questions about the nature of adults' commonsense theories of mind and about the nature of commonsense theories. Wellman then examines the content of the three-year-old's theory of mind, the nature of children's notions of mind before age three, the changes in the theory during subsequent development from ages three to six, and the young child's conception of mind in comparison with those of older children and adults. Henry M. Wellman is a Professor in the Department of Psychology and the Center for Human Growth and Development at the University of Michigan at Ann Arbor. (shrink)

1. Introduction. Professor Nagel's account of the “cognitive status” of scientific theories has been attacked by P. K. Feyerabend [5] and M. B. Hesse [8] in terms of his alledgedly misguided distinction between experimental laws and theories. The difficulty lies, these critics agree, in Nagel's attempt to find a stable basis for scientific theories in an observational basis of experimental laws. Both Feyerabend and Hesse note the vacillation in Nagel's account of the stability of the meaning of experimental terms (...) and in his discussion of the status of observational as opposed to theoretical terms. They find Nagel too “positivistic” and see as a first step toward a more adequate account of scientific theories the abandonment of the theoretical-observational dichotomy as having more than a pragmatic significance. Nagel's discussion of the theoretical-observational dichotomy is, I agree, inadequate in certain respects. I shall, however, suggest a quite different remedy from those of Feyerabend and Hesse, one that depends neither on a phenomenalistic reduction of theoretical entities nor on a blurring of the theoretical-observational dichotomy. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Kant's Critique of Berkeley HENRY E. ALLISON THE CLAIMTHAT KANT'S IDEALISM,or at least certain strands of it, is essentially identical to that of Berkeley has a long and distinguished history. It was first voiced by several of Kant's contemporaries such as Mendelssohn, Herder, Hamann, Pistorius and Eberhard who attacked the alleged subjectivism of the Critique of Pure Reason. 1 This viewpoint found its sharpest contemporary expression in the (...) notorious Garve-Feder review to which Kant responded at length in the Prolegomena. In subsequent times it has been championed by Schopenhauer, and most nineteenth century German commentators on the relation between the two philosophers. 2 In addition, it has been, and continues to be, the prevailing view of the vast majority of British writers on Kant, including, with significant qualifications, Norman Kemp Smith. 3 This tradition continues despite the fact that Kant specifically, and in no uncertain terms, repudiated this identification in the Prolegomena and the second edition of the Critique. In both works he responds to the charges of subjectivism, and in so doing distinguishes his position from that of Berkeley, who in the eighteenth century was commonly regarded as a solipsist and denier of the "external world." 4 In contra-distinction to Kant's own critical or transcendental idealism, which explains the possibility of synthetic a priori knowledge within the realm of possible experience, Berkeley is characterized as a "dogmatic" or "visionary idealist." He is judged guilty of "degrading bodies to mere illusion" (B69), of regarding things in space as "merely imaginary entities" (B274), and of holding with all "genuine idealists" that: "all knowledge through the senses and experience is i Cf. Hans Vaihinger, Commentar zu Kant's Kritik der Reinen Vernunft (Stuttgart, Berlin, Leipzig, 1892), II, 494-505. Cf. Friederich Fredericks, Der Phainomenale Idealisraus Berkeley's und Kant's (Berlin, 1871); Robert Zimmerman, "Ober Kant's Widerlegung des Idealismus yon Berkeley" (Sitzungsberichte der Akademie der Wissenschaften, Vienna, Philox.-hist. Kl.), LXVIII (1871); Gustav Dieckert, tiber dos Verhiiltnis des Berkeleyschen ldealismus zu Kantischen Vernun]tkritik (Konitz, 1888). Tiffs is a consequence of the general British tendency to view Kant in phenomenalist terms. A typical recent example is found in P. F. Strawson, The Bounds of Sense (London, 1966). Kemp Smith in his Commentary to Kant's Critique o[ Pure Reason (2nd ed., rev., 1923) takes greaZ pains to distinguish between the subjectivist strand in Kant's thought, which is essentially identical to Berkeley's position, and the genuine critical doctrine which stands side by side with it in the text. 9 Cf. I-I.M. Bracken, The Early Reception of Berkeley's Materialism 1710-1733, rev. ed. (The Hague: Martinus Nijhoff, 1965). [43] 44 HISTORY OF PHILOSOPHY nothing but sheer illusion, and only in the ideas of pure understanding is there truth" (374). 5 One of the chief reasons for the continuation of the Kant-Berkeley tradition is that these, and similar statements about Berkeley, which we find in these works and in Kant's correspondenc e with Beck, have not been taken very seriously by Kant's critics. They are usually dismissed as obvious misinterpretations, due to Kant's ignorance of Berkeley's actual writings, and of his reliance upon distorted second and third hand accounts of Berkeley's thought such as is to be found in Beattie. Furthermore, this view is often supported by the philological reflection that Kant did not read English, and that Berkeley's writings were not yet available in German translation. 6 The philological argument, however, loses much of its force when we consider that there was indeed a German translation of Berkeley's Dialogues, which although apparently unknown to nineteenth century scholars, was readily accessible to Kant. This is to be found, together with a translation of Collier's Clavis Universalis and critical analyses, in a work by the professor of philosophy at Rostock, Johann Christian Eschenbach, entitled: Samlung der vornehmsten Schri[tsteller die die tFirklichkeit ihres eignen K~rpers und der ganzen Ki~rperwelt leugnen (Rostock, 1756). Furthermore, in addition to this work, which was probably known to Kant, there is Berkeley's important Latin work, De Motu (1721), as well as French translations of many of... (shrink)

Henry S. Richardson is Professor of Philosophy at Georgetown University. From 2008-18, he was the editor of Ethics. His previous books include Practical Reasoning about Final Ends, Democratic Autonomy, and Moral Entanglements. He has held fellowships sponsored by the Alexander von Humboldt Foundation, the National Endowment for the Humanities, and the University Center for Human Values at Princeton University.

A biography of Augustine's thought life, as interpreted by the acclaimed church historian, the late Professor Henry Chadwick. Augustine's intellectual development is recounted with clarity and warmth, providing a characteristically rigorous yet sympathetic narrative of this central figure in the history of Christian thought.

Few if any philosophical schools have championed family values as persistently as the early Confucians, and a great deal can be learned by attending to what they had to say on the subject. In the Confucian tradition, human morality and the personal realization it inspires are grounded in the cultivation of family feeling. One may even go so far as to say that, for China, family reverence was a necessary condition for developing any of the other human qualities of excellence. (...) On the basis of the present translation of the Xiaojing (Classic of Family Reverence) and supplemental passages found in other early philosophical writings, Professors Rosemont and Ames articulate a specifically Confucian conception of "role ethics" that, in its emphasis on a relational conception of the person, is markedly different from most early and contemporary dominant Western moral theories. This Confucian role ethics takes as its inspiration the perceived necessity of family feeling as the entry point in the development of moral competence and as a guide to the religious life as well. In the lengthy introduction, two senior scholars offer their perspective on the historical, philosophical, and religious dimensions of the Xiaojing. Together with this introduction, a lexicon of key terms presents a context for the Xiaojing and provides guidelines for interpreting the text historically in China as well as suggesting its contemporary significance for all societies. The inclusion of the Chinese text adds yet another dimension to this important study. The Chinese Classic of Family Reverence is sure to appeal to specialists of comparative and Chinese philosophy and to all readers interested in the enduring importance of the family. (shrink)

Henry Morris (1889-1961), the great educational philosopher, and initiator of the integrated community educational centre - embodied in the Cambridgeshire village college system - was county education officer and had his first 'memorandum' on the concept of community education printed by the Cambridge University Press. 1984 is both the 60th anniversary of his first memorandum and the 400th anniversary of the Press and this commemorative book will be published to coincide with a number of events to celebrate that. The (...) book is a collection of his papers, mainly about community education, edited by Professor Harry Re;e, who is closely associated with the Community Education Development Centre in Coventry. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:246 HISTORY OF PHILOSOPHY f~ntlSetifr ~uftanbebrtn~en, [o,ba{~hie @i~e~t heeler~anbluu~ ~uaIet~ bee ~[u~e[t bee ~emu~tfein~ (~m ~e~riffe eiuer ~inie)i[t, u,b baburd~a[rerer[t em Dbieft (el, be[timmter ~a,,m) erfannt r0irb.") The notion of constructing a concept is a technical one for Kant ("r ~e@rlffabet f on ft r u i r en, beiflt: hie i~m focre[p0nblereube ~In [ c @a u u,@ a ~ c i o ~i bar[tdlen." Op. cit., B741)--to (...) construct a concept of space would be to produce a representation of a determinate region of space in accordance with some determining principle. 9Maimon, Salomon (1753-1800): Self-educated philosopher from Lithuania who appeared on the Berlin scene in the later 1780's. His Versuch ~ber die Transzendentalphilosophie (1790) was a critical study of the Kritik der reinen Vernunft; Kant had already seen some of it in manuscript, sent to him by Marcus Herz. In his letter of May 26, 1789 (~362), he describes to Herz how he had been on the point of returning the manuscript unread, with a note saying that he was too busy, but that on glancing at it he had realized its quality and had seen that none of his opponents had understood the Kritilc as well as had M. u Herz, Marcus (1747-1803): Student and subsequently close friend of Kant's. Medical doctor and, from 1786, Professor of Philosophy in Berlin. i Selle, Christian Gottlieb (1748-1800) : Medical doctor in Berlin, involved in experiments in animal magnetism. Kiesewetter regarded the experiments as fraudulent, but absolved S. of complicity. J Berlinische Monatr A liberal journal, founded in 1783, in which Kant frequently published. The editor in question was Johann Erich Biester (1749-1816), who was also Librarian of the Royal Library inBerlin. k Elsner, Christoph Friedrich (1749-1820): Professor of Medicine at K6aigsberg, who attended Kant in his final illness. A FURTHER NOTE ON PAUL MARHENKE'S "THE PHENOMENALISTIC INTERPRETATION OF KANT'S THEORY OF KNOWLEDGE" IN AN INTRODUCTORY NOTE to a paper, "The Phenomenalistic Interpretation of Kant's Theory of Knowledge," which was found in the effects of the late Paul Marhenke, Professor of Philosophy at the University of California, Berkeley, and which was printed in the April, 1964 issue of this Journal I mentioned that an intensive inquiry failed to reveal when this paper was written or for what occasion. I have recently received a note from Professor Jacob Loewenberg, Professor Emeritus in the Department of Philosophy at Berkeley, informing me that the paper was written while Paul Marhenke was a student at Berkeley and was written for Professor Loewenberg's Seminar on Kant, during the session of 192526. Professor Loewenberg writes that "the seminar dealt with certain selected topics crucial in or growing out of the Critique of Pure Reason. Among those who in addition to Paul were in the seminar, I remember distinctly (largely because of their superior performance) Donald C. Williams and the late A. P. Ushenko. I am not quite sure whether or not Philip Wiener was also enrolled." University o] California, San Diego A YRD-~[STROLL A I~EPLY TO WALTER KAUFMANN WALTER KAUFMANN,in his article, "Nietzsche in the Light of his Suppressed Manuscripts" 1 converts a review of Erich F. Podach's book, Friedrich Nietzsche's 1This Journal, II, 2 (Oct., 1964), pp. 205-225. NOTES AND DISCUSSIONS 247 Werke des Zusammenbruchs into a bitter personal attack on Podach and an even more vitriolic assault on me. Every author and scholar is entitled to his own opinion, and had Kaufmann soberly stated his case by simply announcing that, to his mind, the re-editing of Nietzsche's works according to the genuine manuscripts now available in Weimar has not changed one iota of the true character of the philosopher's last books, then his efforts would certainly have been unexceptionable. Prof. Kaufmann could simply have said, "Much ado about nothing! Podach's findings will, by no means, alter the image of Nietzsche among philosophers. Period." Indeed, this is precisely what Kaufmann's elaborate tirades and invectives come to if one reduces them to their... (shrink)

"I had read the book before in the shorter Harper Torchbook edition but read it again right through--and found it as interesting and exciting as before. I regard it as one of the seminal books in the history of ideas. Based on a prodigious amount of original research, it demonstrated conclusively and in fascinating details how the transmission of ancient skepticism was a bital factor in the formation of modern thought. The story is rich in implications for th history of (...) philosophy, the history of science, and the history of religious thought. Popkin's work has already inspired further work by others--and the new edition takes account of this, most importantly the work of Charles Schmitt. The two new chapters extend the story as far as Spinoza, with special reference to the beginnings of biblical criticism.... Popkin's history is of great potential interest to a wide readership--wider than most specialist publications and wider than it has (so far as I can tell) reached hitherto."--M.F. Burnyeat, Professor of Philosophy, University College London. (shrink)

In the Introduction to his Old English Glosses, published in 1900, the late Professor Napier asserted that Aldhelm glosses are to be found in the Corpus Glossary. He did not attempt any elaborate argument, but contented himself with giving a list of sixty-four instances in which the lemmata of the Corpus Glossary coincide entirely with words occurring in the text of the De Virginitate. Of these lemmata, twenty-three occur also in the Epinal and Erfurt Glossaries, and must therefore have (...) existed in the common archetype of the three collections. Napier's conclusion was that the compiler of the archetype had before him one Aldhelm glossary, and that the author of the Corpus Glossary, who rearranged the material of the archetype and made extensive additions, had among his sources another and an independent glossary. (shrink)

I am grateful to Professor Wheatley for his note, [3], on my analysis of interrogatives, [1]. His comments bring out very clearly a number of considerations that deserve our closest attention. For example, he shows that if we can classify interrogatives as true and false—as I proposed to do—then we can properly inquire about what sentences contradict them, and what sentences are contingently or logically equivalent to them. Furthermore, he shows that, on my analysis, no indirect question can contradict (...) any other indirect question and he accordingly, and correctly, looks for such contradictories among declarative sentences. Finally, he notes, [3], p. 54, that in my article, I have treated only inquisitive questions and have said nothing about deliberative or practical questions. While practical questions demand a different kind of treatment than that which Wheatley speculatively, albeit very tentatively, extrapolates for me, still these questions do form a kind of interrogative that did not get any attention in my article. (shrink)

Henry Sidgwick (1838-1900), English philosopher and educator is today most famous for his Methods of Ethics first published in 1874 and considered by C. D. Broad among others to be the greatest single work on ethics in English. Besides philosophy, Sidgwick wrote on education, literature, political theory, the history of political institutions, and psychical research. He was also active in University politics, economics and administration, playing a large part in the founding of the first College for women - Newnham (...) College, Cambridge. Although Methods of Ethics is considered the most valuable of his writings - reprinted here in its first and last editions - his intellect is displayed in the full extent of his writings. Professor Marshall said in reference to his discussions of the proper functions of government in Principles of Political Economy that it was 'by far the best thing of the kind in any language'. In all his writings, Sidgwick is rigorous and cautious, reluctant to advance ideas without making sure of his ground. In common with Mill he was opposed to mystical and transcendental methods. This comprehensive collection brings together the most definitive editions of all his books and includes the standard biography written by his wife, as well as two volumes of previously uncollected essays and reviews. (shrink)

1848 is a watershed in Dutch political and intellectual history. In the wake of liberalism positivism and empiricism dominated Dutch philosophy. In this paper it is argued that Spinoza’s philosophy played an important part in developing a liberal Weltanschauung. Dutch Spinozism started with the theological dissertation of Johannes van Vloten, who from the 1860s onwards became the great pamphleteer of Spinozism. However due to his break with Christianity he remained an exception in Dutch intellectual life. The Utrecht professor of (...) philosophy Cornelis Willem Opzoomer and his friend the classical scholar D. Burger jr., for example, propagated a liberal Christianity purged from its mythical elements. Adopting Schleiermacher’s example Opzoomer developed a morality inspired by Ethics V. In 1850 he turned to J. S. Mill and A. Comte. From that year onwards he justified the methodological unity of the natural and ‘moral’ sciences in Spinoza’s doctrine of the passions. According to Burger the Ethics contains an obsolete metaphysics, but due to its morality consistent with science the book deserves a large 19th-century readership. In 1858 he translated Spinoza’s main work into Dutch. (shrink)