Language pragmatics is applied to analyse problem statements and instructions used in a few influential experimental tasks in the psychology of reasoning. This analysis aims to determine the interpretation of the task which the participant is likely to construct. It is applied to studies of deduction (where the interpretation of quantifiers and connectives is crucial) and to studies of inclusion judgment and probabilistic judgment. It is shown that the interpretation of the problem statements or even the representation of the task (...) as a whole often turn out to differ from the experimenter's assumptions. This has serious consequences for the validity of these experimental results and therefore for the claims about human irrationality based on them. (shrink)

Two notions from philosophical logic and linguistics are brought together and applied to the psychological study of defeasible conditional reasoning. The distinction between disabling conditions and alternative causes is shown to be a special case of Pollock’s (1987) distinction between ‘rebutting’ and ‘undercutting’ defeaters. ‘Inferential’ conditionals are shown to come in two varieties, one that is sensitive to rebutters, the other to undercutters. It is thus predicted and demonstrated in two experiments that the type of inferential conditional used as the (...) major premise of conditional arguments can reverse the heretofore classic, distinctive effects of defeaters. (shrink)

What place does motivation have in the lives of intelligent agents? Mele's answer is sensitive to the concerns of philosophers of mind and moral philosophers and informed by empirical work. He offers a distinctive, comprehensive, attractive view of human agency. This book stands boldly at the intersection of philosophy of mind, moral philosophy, and metaphysics.

Psychological research on people’s understanding of natural language connectives has traditionally used truth table tasks, in which participants evaluate the truth or falsity of a compound sentence given the truth or falsity of its components in the framework of propositional logic. One perplexing result concerned the indicative conditional if A then C which was often evaluated as true when A and C are true, false when A is true and C is false but irrelevant“ (devoid of value) when A is (...) false (whatever the value of C). This was called the “psychological defective table of the conditional.” Here we show that far from being anomalous the “defective” table pattern reveals a coherent semantics for the basic connectives of natural language in a trivalent framework. This was done by establishing participants’ truth tables for negation, conjunction, disjunction, conditional, and biconditional, when they were presented with statements that could be certainly true, certainly false, or neither. We review systems of three-valued tables from logic, linguistics, foundations of quantum mechanics, philosophical logic, and artificial intelligence, to see whether one of these systems adequately describes people’s interpretations of natural language connectives. We find that de Finetti’s (1936/1995) three-valued system is the best approximation to participants’ truth tables. (shrink)

Alfred North Whitehead's SCIENCE AND THE MODERN WORLD, originally published in 1925, redefines the concept of modern science.

Philospher, mathematician, and general man of science, Alfred North Whitehead was a polymath whose interests and generous sympathies encompassed entire worlds.

A dissertation in the tradition of logical positivism includes a discussion of the functions and methods of philosophy and a critique of ethics and theology.

Autonomous Agents addresses the related topics of self-control and individual autonomy. "Self-control" is defined as the opposite of akrasia-weakness of will. The study of self-control seeks to understand the concept of its own terms, followed by an examination of its bearing on one's actions, beliefs, emotions, and personal values. It goes on to consider how a proper understanding of self-control and its manifestations can shed light on personal autonomy and autonomous behaviour. Perspicuous, objective, and incisive throughout, Alfred Mele makes (...) a convincing case for the value of individual autonomy. (shrink)

This paper aims to make explicit the methodological conditions that should be satisfied for the Bayesian model to be used as a normative model of human probability judgment. After noticing the lack of a clear definition of Bayesianism in the psychological literature and the lack of justification for using it, a classic definition of subjective Bayesianism is recalled, based on the following three criteria: an epistemic criterion, a static coherence criterion and a dynamic coherence criterion. Then it is shown that (...) the adoption of this framework has two kinds of implications. The first one regards the methodology of the experimental study of probability judgment. The Bayesian framework creates pragmatic constraints on the methodology that are linked to the interpretation of, and the belief in, the information presented, or referred to, by an experimenter in order for it to be the basis of a probability judgment by individual participants. It is shown that these constraints have not been satisfied in the past, and the question of whether they can be satisfied in principle is raised and answered negatively. The second kind of implications consists of two limitations in the scope of the Bayesian model. They regard (1) the background of revision (the Bayesian model considers only revising situations but not updating situations), and (2) the notorious case of the null priors. In both cases Lewis’ rule is an appropriate alternative to Bayes’ rule, but its use faces the same operational difficulties. (shrink)

Hume is one of the greatest of all British philosophers, and even in his own lifetime was celebrated as one of the pivotal figures of the Enlightenment. A central theme of his philosophy is the conviction that questions traditionally thought of as completely independent of the scientific realm--questions about the mind, about morality, and about God, for example--are actually best explained using the experimental methods characteristic of the natural sciences. Hume's 'naturalist' approach to a wide variety of philosophical topics resulted (...) in highly original theories about perception, self-identity, causation, morality, politics, and religion, all of which are discussed in this stimulating introduction by A J Ayer, himself one of the twentieth century's most important philosophers. Ayer also gives an account of Hume's fascinating life and character, and includes generous quotations from Hume's lucid and often witty writings. (shrink)

Now in its fourth edition, this classic work clearly and concisely introduces the subject of logic and its applications. The first part of the book explains the basic concepts and principles which make up the elements of logic. The author demonstrates that these ideas are found in all branches of mathematics, and that logical laws are constantly applied in mathematical reasoning. The second part of the book shows the applications of logic in mathematical theory building with concrete examples that draw (...) upon the concepts and principles presented in the first section. Numerous exercises and an introduction to the theory of real numbers are also presented. Students, teachers and general readers interested in logic and mathematics will find this book to be an invaluable introduction to the subject. (shrink)

The Bayesian model is used in psychology as the reference for the study of dynamic probability judgment. The main limit induced by this model is that it confines the study of revision of degrees of belief to the sole situations of revision in which the universe is static (revising situations). However, it may happen that individuals have to revise their degrees of belief when the message they learn specifies a change of direction in the universe, which is considered as changing (...) with time (updating situations). We analyze the main results of the experimental literature with regard to elementary qualitative properties of these two situations of revision. First, the order effect phenomenon is confronted with the commutative property. Second, an apparent new phenomenon is presented: the redundancy effect that is confronted with the idempotence property. Finally, results obtained in this kind of experimental situations are reinterpreted in the light of pragmatic analysis. (shrink)

The Bayesian model has been used in psychology as the standard reference for the study of probability revision. In the first part of this paper we show that this traditional choice restricts the scope of the experimental investigation of revision to a stable universe. This is the case of a situation that, technically, is known as focusing. We argue that it is essential for a better understanding of human probability revision to consider another situation called updating (Katsuno & Mendelzon, 1992), (...) in which the universe is evolving. In that case the structure of the universe has definitely been transformed and the revision message conveys information on the resulting universe. The second part of the paper presents four experiments based on the Monty Hall puzzle that aim to show that updating is a natural frame for individuals to revise their beliefs. (shrink)

Most instantiations of the inference ‘y; so if x, y’ seem intuitively odd, a phenomenon known as one of the paradoxes of the material conditional. A common explanation of the oddity, endorsed by Mental Model theory, is based on the intuition that the conclusion of the inference throws away semantic information. We build on this explanation to identify two joint conditions under which the inference becomes acceptable: (a) the truth of x has bearings on the relevance of asserting y; and (...) (b) the speaker can reasonably be expected not to be in a position to assume that x is false. We show that this dual pragmatic criterion makes accurate predictions, and contrast it with the criterion defined by the mental model theory of conditionals, which we show to be inadequate. (shrink)

In this book, the author of "Language, Truth and Logic" tackles one of the central issues of philosophy - how we can know anything - by setting out all the sceptic's arguments and trying to counter them one by one.

The new Bayesian paradigm in the psychology of reasoning aims to integrate the study of human reasoning, decision making, and rationality. It is supported by two findings. One, most people judge the probability of the indicative conditional, P(if A then B), to be the conditional probability, P(B|A), as implied by the Ramsey test. Two, they judge if A then B to be void when A is false. Their three-valued response table used to be called ‘defective’, but should be termed the (...) de Finetti table. We show how to study general de Finetti truth tables for negations, conjunctions, disjunctions, and conditionals. (shrink)

We elaborate on the approach to syllogistic reasoning based on “case identification” (Stenning & Oberlander, 1995; Stenning & Yule, 1997). It is shown that this can be viewed as the formalisation of a method of proof that dates back to Aristotle, namely proof by exposition ( ecthesis ), and that there are traces of this method in the strategies described by a number of psychologists, from St rring (1908) to the present day. We hypothesised that by rendering individual cases explicit (...) in the premises, the chance that reasoners would engage in a proof by exposition would be enhanced, and thus performance improved. To do so, we used syllogisms with singular premises (e.g., this X is Y ). This resulted in a uniform increase in performance as compared to performance on the associated standard syllogisms. These results cannot be explained by the main theories of syllogistic reasoning in their current state. (shrink)

Le present volume rassemble plusieurs etudes qu' Alfred Schutz avait consacrees a diverses questions qui gravitent autour d'un probleme philosophique majeur: celui de la socialite. La plupart de ces etudes ont Me publiees ailleurs, mais elles etaient dispersees et d'un acces parfois difficile. Tel quel, l'ouvrage que nous presentons n' est que la premiere partie d'un ensemble dans lequell'auteur se proposait de faire reunir par son disciple et ami Maurice Natanson les nombreux essais qu'il avait ecrits depuis son arrivee (...) aux Etats-Unis au debut de la demiere guerre. La mort l'empecha de voir realiser ce projet. 11 nous a semble que la pUblication successive de cet ensemble, dans la fidelite aux indications laissees par l'auteur, etait Ie plus bel hommage que nous pussions rendre a ce penseur qui fut notre ami et meritait sans nul doute de tenir dans Ie courant phenomenologique une place de premier plan que faillirent lui refuser les circonstances dramatiques de sa vie, jointes a sa trop grande modestie per­ sonnelle. II me faudrait ici parler de l'homme, evoquer sa finesse d'esprit, son ironie penetrante, sa serenite et son courage dans l' exil, l' event ail tres vaste de ses preoccupations, Ie don de jeu­ nesse et de sympathie grftce auquel il entreprit a quarante ans d'assimiler avec bonheur une culture nouvelle, pour y exceller bientOt. (shrink)

ABSTRACTThe new paradigm in the psychology of reasoning redirects the investigation of deduction conceptually and methodologically because the premises and the conclusion of the inferences are assumed to be uncertain. A probabilistic counterpart of the concept of logical validity and a method to assess whether individuals comply with it must be defined. Conceptually, we used de Finetti's coherence as a normative framework to assess individuals' performance. Methodologically, we presented inference schemas whose premises had various levels of probability that contained non-numerical (...) expressions and, as a control, sure levels. Depending on the inference schemas, from 60% to 80% of the participants produced coherent conclusions when the premises were uncertain. The data also show that except for schemas involving conjunction, performance was consistently lower with certain than uncertain premises, the rate of conjunction fallacy was consistently low (not exceeding 20%,.. (shrink)

The book then explores the Lysis and the Phaedrus, which both address how the object arises, in two different ways, the Socratic and the Platonic."--BOOK JACKET.

Edited by a leading exponent of the school, this book offers--in the words of the movement's founders--logical positivism's revolutionary theories on meaning and metaphysics, the nature of logic and mathematics, the foundations of knowledge ...

Studies designed to help us understand how nonspecialists conceive of intentional action have generated some widely discussed results. To what extent are the results accounted for by the existence of different folk conceptions of intentional action? That is my guiding question in this article. I am not in a position to offer a full answer, but I do hope to make some progress.

In _Probability and Evidence_, one of Britain's foremost twentieth-century philosophers addresses central questions in the theory of knowledge and the philosophy of science. This book contains A.J. Ayer's John Dewey Lectures delivered at Columbia University, together with two additional essays, "Has Harrod Answered Hume?" and "The Problem of Conditionals.".

There is a new Bayesian, or probabilistic, paradigm in the psychology of reasoning, with new psychological accounts of the indicative conditional of natural language. In psychological experiments in this new paradigm, people judge that the probability of the indicative conditional, P(if A then C), is the conditional probability of C given A, P(C | A). In other experiments, participants respond with what has been called the 'de- fective' truth table: they judge that if A then C is true when A (...) holds and C holds, is false when A holds and C does not, and is neither true nor false when A does not hold. We argue that these responses are not 'defective' in any negative sense, as many psychologists have implied. We point out that a number of normative researchers, including de Finetti, have proposed such a table for various coherent interpretations of the third value. We review the relevant general tables in the normative literature, in which there is a third value for A and C and the logically compound forms of the natural language conditional, negation, conjunction, disjunction, and the material conditional. We describe the results of an experiment on which of these tables best describes ordinary people's judgements when the third value is interpreted as indicating uncertainty. (shrink)

This book was originally conceived as a sequel to bertrand russell's "a history of western philosophy". it takes up where russell left off. rather than examining a wide number of philosophers superficially, this book deals with a small number of philosophers in depth. the book examines american pragmatists, the analytic movement, phenomenology and existentialism. it examines both critical and speculative philosophy. (staff).

How might people be wronged in relation to their feelings, moods, and emotions? Recently philosophers have begun to investigate the idea that these kinds of wrongs may constitute a distinctive form of injustice: affective injustice (Archer & Mills 2019; Mills 2019; Srinivasan 2018; Whitney 2018). In previous work, we have outlined a particular form of affective injustice that we called emotional imperialism (Archer & Matheson 2022). This paper has two main aims. First, we aim to provide an expanded account of (...) the forms that emotional imperialism can take. We will do so by drawing inspiration from William Reddy’s concept of an emotional regime and investigating ways in which colonial powers of the 18th to 20th Centuries sought to impose their emotional regimes on their colonial subjects. Second, we will offer more expansive accounts of both emotional imperialism and affective injustice that can accommodate these additional forms of emotional imperialism. (shrink)

Victims of oppression are often called to let go of their anger in order to facilitate better discussion to bring about the end of their oppression. According to Amia Srinivasan, this constitutes an affective injustice. In this paper, we use research on emotion regulation to shed light on the nature of affective injustice. By drawing on the literature on emotion regulation, we illustrate specifically what kind of work is put upon people who are experiencing affective injustice and why it is (...) damaging. We begin by explaining affective injustice and how it can amount to a call for emotion regulation. Then we explain the various techniques that can be used to regulate emotions and explain how each might be harmful here. In the penultimate section of the paper, we explain how the upshot of this is that victims of affective injustice are left with a dilemma. Either they try to regulate their anger in a way that involves ignoring the fact of their oppression or they regulate it in a way that is likely to be harmful for them. Finally, we consider whether there are any good solutions to this dilemma, and how this issue opens up the possibility for further research into emotion regulation and moral philosophy. (shrink)

The Pigeonhole Principle states that if n items are sorted into m categories and if n > m, then at least one category must contain more than one item. For instance, if 22 pigeons are put into 17 pigeonholes, at least one pigeonhole must contain more than one pigeon. This principle seems intuitive, yet when told about a city with 220,000 inhabitants none of whom has more than 170,000 hairs on their head, many people think that it is merely likely (...) that two inhabitants have the exact same number of hair. This failure to apply the Pigeonhole Principle might be due to the large numbers used, or to the cardinal rather than nominal presentation of these numbers. We show that performance improved both when the numbers are presented nominally, and when they are small, albeit less so. We discuss potential interpretations of these results in terms of intuition and reasoning. (shrink)

Is it appropriate to honor artists who have created great works but who have also acted immorally? In this article, after arguing that honoring involves identifying a person as someone we ought to admire, we present three moral reasons against honoring immoral artists. First, we argue that honoring can serve to condone their behavior, through the mediums of emotional prioritization and exemplar identification. Second, we argue that honoring immoral artists can generate undue epistemic credibility for the artists, which can lead (...) to an indirect form of testimonial injustice for the artists’ victims. Third, we argue, building on the first two reasons, that honoring immoral artists can also serve to silence their victims. We end by considering how we might respond to these reasons. (shrink)

I - Individuals 1 2 - The Identity of Indiscernibles 26 3 - Negation 36 4 - The Terminology of Sense-Data 66 5 - Basic Propositions 105 6 - Phenomenalism 125 7 - Statements About the Past 167 8 - One’s Knowledge of Other Minds 191 9 - On What There Is 215 10 - On the Analysis of Moral Judgements 231 11 - The Principle of Utility 250 12 - Freedom and Necessity 271 Index 285.

Is it appropriate to honour and admire people who have created great works of art, made important intellectual contributions, performed great sporting feats or shaped the history of a nation if those people have also acted immorally? This book provides a philosophical investigation of this important and timely question. -/- The authors draw on the latest research from ethics, value theory, philosophy of emotion, social philosophy and social psychology to develop and substantiate arguments that have been made in the public (...) debates about this issue. They offer a detailed analysis of the nature and ethics of honour and admiration, and present reasons both in favor and against honouring and admiring the immoral. They also take on the important matter of whether we can separate the achievements of public figures from their immoral behavior. Ultimately, the authors reject a "one-size-fits-all" approach and argue that we must weigh up the reasons for and against honouring and admiring in each particular case. -/- Honouring and Admiring the Immoral is written in an accessible style that shows how philosophy can engage with public debates about important ethical issues. It will be of interest to scholars and students working in moral philosophy, philosophy of emotion, and social philosophy. (shrink)

According to the Christian doctrine of the Incarnation, the Son of God is truly but only contingently a human being. But is it also the case that Christ’s individual human nature is only contingently united to a divine person? The affirmative answer to this question, explicitly espoused by Duns Scotus and William of Ockham, turns out to be philosophically untenable, while the negative answer, which is arguably implicit in St. Thomas Aquinas, explication of the Incarnation, has some surprising and significant (...) metaphysical consequences. (shrink)

The Northern Irish footballer James McClean chooses not to take part in the practice of wearing a plastic red poppy to commemorate those who have died fighting for the British Armed Forces. Each year he faces abuse, including occasional death threats, for his choice. This forms part of a wider trend towards ‘poppy enforcement’, the pressuring of people, particularly public figures, to wear the poppy. This enforcement seems wrong in part because, at least in some cases, it involves abuse. But (...) is there anything else wrong with it? We will consider the various ways the existing literature on the ethics of commemoration might help us understand what is wrong with poppy enforcement. We will argue that this cannot provide a complete account of what is wrong with poppy enforcement. We then argue that such pressure can constitute two distinct forms of affective injustice, which are wrongs done to people specifically in their capacity as affective beings. In McClean’s case, we argue first that poppy enforcement is a violation of affective rights and second that he faces a particular type of affective injustice that we call emotional imperialism. (shrink)

This paper reviews the psychological investigation of reasoning with conditionals, putting an emphasis on recent work. In the first part, a few methodological remarks are presented. In the second part, the main theories of deductive reasoning (mental rules, mental models, and the probabilistic approach) are considered in turn; their content is summarised and the semantics they assume for if and the way they explain formal conditional reasoning are discussed, in particular in the light of experimental work on the probability of (...) conditionals. The last part presents the recent shift of interest towards the study of conditional reasoning in context, that is, with large knowledge bases and uncertain premises. (shrink)

The explanation of the suppression of Modus Ponens inferences within the framework of linguistic pragmatics and of plausible reasoning (i.e., deduction from uncertain premises) is defended. First, this approach is expounded, and then it is shown that the results of the first experiment of Byrne, Espino, and Santamar a (1999) support the uncertainty explanation but fail to support their counterexample explanation. Second, two experiments are presented. In the first one, aimed to refute one objection regarding the conclusions observed, the additional (...) conditional premise ( if N, C ) was replaced with a statement of uncertainty ( it is not certain that N ); the answers produced by the participants remained qualitatively and quantitatively similar in both conditions. In the second experiment, a fine-grained analysis of the responses to and justifications for an evaluation task was performed. The results of both experiments strongly supported the uncertainty explanation. (shrink)

This study examines whether Chinese complement coercion sentences with aspectual verbs will elicit processing difficulty during real-time comprehension. Complement coercion is a linguistic phenomenon in which certain verbs, requiring an event-denoting complement, are combined with an entity-denoting complement, as in The author started a book. Previous studies have reported that the entity-denoting complement elicited processing difficulty following verbs that require event argument compared with verbs that do not. While the processing of complement coercion has been extensively studied in Indo-European languages (...) such as English and German, it is relatively under-researched in Sino-Tibetan languages such as Mandarin Chinese. Given the fact that there are many linguistic elements behaving distinctly in the different language families, for instance, verbs with respect to their semantic properties and syntactic representations of the complement, it is meaningful to investigate whether or not the existing linguistic differences have any effect on the processing of complement coercion in Mandarin. With this research goal, we recorded self-paced reading time of 61 native Mandarin speakers to investigate the processing of the entity-denoting complement in sentences with three different verb types, as exemplified in 顾客开始/填写/查看这份问卷 gù-kè kāi-shǐ/tián-xiě/chá-kàn zhè-fèn wèn-juàn “The customer started/filled in/checked the questionnaire.” It was found that the entity noun complement elicited significantly longer reading times in coercion sentences than non-coercion counterparts. The results are compatible with the previous findings in English that complement coercion sentences impose processing cost during real-time comprehension. The study contributes empirical evidence to coercion studies cross-linguistically. (shrink)