As Kant claimed in the Groundwork, and as the idea has been developed by Korsgaard 1997, Bratman 1987, and Broome 2002. This formulation is agnostic on whether reasons for ends derive from our desiring those ends, or from the relation of those ends to things of independent value. However, desire-based theorists may deny, against Hubin 1999, that their theory is a combination of a principle of instrumental transmission and the principle that reasons for ends are provided by desires. Instead, they (...) may say, there is just one principle, a principle of, if you will, instrumental transmutation: if one desires the end, then one has reason to take the means. See the discussion of General Production, in section 8, for a doubt about this. (shrink)

This paper examines precursors and consequents of perceived relevance of a proposition A for a proposition C. In Experiment 1, we test Spohn's assumption that ∆P = P − P is a good predictor of ratings of perceived relevance and reason relations, and we examine whether it is a better predictor than the difference measure − P). In Experiment 2, we examine the effects of relevance on probabilistic coherence in Cruz, Baratgin, Oaksford, and Over's uncertain “and-to-if” inferences. The (...) results suggest that ∆P predicts perceived relevance and reason relations better than the difference measure and that participants are either less probabilistically coherent in “and-to-if” inferences than initially assumed or that they do not follow P = P. Results are discussed in light of recent results suggesting that the Equation may not hold under conditions of irrelevance or negative relevance. (shrink)

The harmonization of reason and faith was for Averroes the main scientific challenge whereby Aristotle served him as a key philosophical point of reference. Whilst Averroes followed Aristotle to a large extent, Thomas Aquinas attempts to make use of Aristotle's work in a different manner for his own philosophical-theological model whilst still referring to Averroes. For the two philosophers reason and revelation attain a singular synthesis which is, however, not completely tension free. In this study Averroes is praised (...) as a congenial thinker of scholarly topics. Thomas' handling of islamic-arabic philosophy proves an example worthy of attention of intercultural philosophical discourse which can serve contemporary Western-world philosophy projects as a valuable point of reference. (shrink)

What is the relation between moral reasons and moral requirement? Specifically: what relation does an action have to bear to one’s moral reasons in order to count as morally required? This paper defends the following answer to this question: an action is morally required just in case the moral reasons in favor of that action are enough on their own to outweigh all of the reasons, moral and nonmoral, to perform any alternative. I argue that this decisive moral reason (...) view satisfies three key desiderata: it is compatible with either affirming or denying the existence of moral options; it vindicates moral rationalism, the thesis that an action can be morally required only if one ought to do it all things considered; and most distinctively, it explains why unexcused moral wrongdoing necessarily shows disregard for moral reasons. (shrink)

Reasoning in Biological Discoveries brings together a series of essays, which focus on one of the most heavily debated topics of scientific discovery. Collected together and richly illustrated, Darden's essays represent a groundbreaking foray into one of the major problems facing scientists and philosophers of science. Divided into three sections, the essays focus on broad themes, notably historical and philosophical issues at play in discussions of biological mechanism; and the problem of developing and refining reasoning strategies, including interfield relations (...) and anomaly resolution. Darden summarizes the philosophy of discovery and elaborates on the role that mechanisms play in biological discovery. Throughout the book, she uses historical case studies to extract advisory reasoning strategies for discovery. Examples in genetics, molecular biology, biochemistry, immunology, neuroscience and evolutionary biology reveal the process of discovery in action. (shrink)

Inferences about spatial, temporal, and other relations are ubiquitous. This article presents a novel model-based theory of such reasoning. The theory depends on 5 principles. The structure of mental models is iconic as far as possible. The logical consequences of relations emerge from models constructed from the meanings of the relations and from knowledge. Individuals tend to construct only a single, typical model. They spontaneously develop their own strategies for relational reasoning. Regardless of strategy, the difficulty of (...) an inference depends on the process of integration of the information from separate premises, the number of entities that have to be integrated to form a model, and the depth of the relation. The article describes computer implementations of the theory and presents experimental results corroborating its main principle. (shrink)

This essay is concerned with the relation between motivating and normative reasons. According to a common and influential thesis, a normative reason is identical with a motivating reason when an agent acts for that normative reason. I will call this thesis the ‘Identity Thesis’. Many philosophers treat the Identity Thesis as a commonplace or a truism. Accordingly, the Identity Thesis has been used to rule out certain ontological views about reasons. I distinguish a deliberative and an explanatory (...) version of the Identity Thesis and argue that there are no convincing arguments to accept either version. Furthermore, I point out an alternative to the Identity Thesis. The relation between motivating and normative reasons can be thought of as one of representation, not identity. (shrink)

We present a relational proof system in the style of dual tableaux for a multimodal propositional logic for order of magnitude qualitative reasoning to deal with relations of negligibility, non-closeness, and distance. This logic enables us to introduce the operation of qualitative sum for some classes of numbers. A relational formalization of the modal logic in question is introduced in this paper, i.e., we show how to construct a relational logic associated with the logic for order-of-magnitude reasoning and its (...) dual tableau system which is a validity checker for the modal logic. For that purpose, we define a validity preserving translation of the modal language into relational language. Then we prove that the system is sound and complete with respect to the relational logic defined as well as with respect to the logic for order of magnitude reasoning. Finally, we show that in fact relational dual tableau does more. It can be used for performing the four major reasoning tasks: verification of validity, proving entailment of a formula from a finite set of formulas, model checking, and verification of satisfaction of a formula in a finite model by a given object. (shrink)

Three experiments investigated whether the similarity of relational structures influences the interpretation of spatial representations. Adults were shown diagrams of hand gestures paired with simple statements and asked to judge the meaning of new gestures. In Experiment 1 the gestures were paired with active declarative statements. In Experiment 2, the gestures were paired with conjunctive and disjunctive relations. Experiment 3 used statements similar to those used in Experiment 1, but eliminated the initial object‐to‐object mapping provided in Experiments 1 and (...) 2. In all three experiments, most participants chose an interpretation that set up a parallel relational structure between the gesture and its meaning: spatial elements were paired with conceptual elements and spatial relations were paired with conceptual relations. These results are consistent with the hypothesis that similarity of relational structures influences spatial reasoning, and have implications for analogical reasoning, diagrammatic reasoning, and language processing. (shrink)

This paper is about the good side of modal logic, the bad side of modal logic, and how hybrid logic takes the good and fixes the bad.In essence, modal logic is a simple formalism for working with relational structures . But modal logic has no mechanism for referring to or reasoning about the individual nodes in such structures, and this lessens its effectiveness as a representation formalism. In their simplest form, hybrid logics are upgraded modal logics in which reference to (...) individual nodes is possible.But hybrid logic is a rather unusual modal upgrade. It pushes one simple idea as far as it will go: represent all information as formulas. This turns out to be the key needed to draw together a surprisingly diverse range of work . Moreover, it displays a number of knowledge representation issues in a new light, notably the importance of sorting. (shrink)

Recent philosophical work on inquiry yields important results about when it is appropriate to inquire and to what extent norms on inquiry are compatible with other epistemic norms. However, philosophers have been remarkably silent on the matter of what questions we ought to take up in the first place. In this paper, I take up this question, and argue that moral considerations constitute fit-related, right-kind reasons to adopt interrogative attitudes towards, and so inquire about, particular questions. This is a conclusion (...) of more general interest, because – as I explain – we might think that moral considerations are at best wrong-kind reasons for attitudes. If my contentions are right, then there is at least one kind of attitude – namely interrogative attitudes – of which this is not true. (shrink)

In Moral Case Deliberation, healthcare professionals discuss ethically difficult patient situations in their daily practice. There is a lack of knowledge regarding the content of MCD and there is a need to shed light on this ethical reflection in the midst of clinical practice. Thus, the aim of the study was to describe the content of healthcare professionals’ moral reasoning during MCD. The design was qualitative and descriptive, and data consisted of 22 audio-recorded inter-professional MCDs, analysed with content analysis. The (...) moral reasoning centred on how to strike the balance between personal convictions about what constitutes good care, and the perceived dissonant care preferences held by the patient. The healthcare professionals deliberated about good care in relation to demands considered to be unrealistic, justifications for influencing the patient, the incapacitated patient’s nebulous interests, and coping with the conflict between using coercion to achieve good while protecting human dignity. Furthermore, as a basis for the reasoning, the healthcare professionals reflected on how to establish a responsible relationship with the vulnerable person. This comprised acknowledging the patient as a susceptible human being, protecting dignity and integrity, defining their own moral responsibility, and having patience to give the patient and family time to come to terms with illness and declining health. The profound struggle to respect the patient’s autonomy in clinical practice can be understood through the concept of relational autonomy, to try to secure both patients’ influence and at the same time take responsibility for their needs as vulnerable humans. (shrink)

In the first section of this paper I draw, on a purely conceptual level, a distinction between two kinds of reasons: content-related and attitude-related reasons. The established view is that, in the case of the attitude of believing something, there are no attitude-related reasons. I look at some arguments intended to establish this claim in the second section with an eye to whether these argument could be generalized to cover the case of preferences as well. In the third section I (...) argue against such generalizations and present a case in favour of accepting attitude-related reasons for preferences. In the fourth section I present an objection to which I react in the fifth section where I try to strengthen my case for attitude-related reasons for preferences. Finally, I discuss and reject criticisms raised by two opponents of the view defended here. (shrink)

the structure of medical science with a special focus on the role of generalizations and universals in medicine, and (2) philosophy of medicine's relation with the philosophy of science. I argue that a usually overlooked aspect of Kuhnian paradigms, namely, their characteristic of being "exemplars", is of considerable significance in the biomedical sciences. This significance rests on certain important differences from the physical sciences in the nature of theories in the basic and the clinical medical sciences. I describe those differences (...) and maintain that they are these differentiating features that require the use of more comparative and analogical reasoning in medicine. I suggest that Kitcher's recent introduction of the notion of a ‘practice’ may have similar implications if it is construed to contain more analogical elements than he appears to recognize in his initial formulation. Finally I argue that though Gorovitz and MacIntyre's characterization of medicine as a "science of particulars" bears some similarities with my thesis, I maintain that such a position without careful qualification can lead to ignoring both the nature of generalizations in these sciences and their role as positive analogies tying together a family of overlapping models. Keywords: medical reasoning, biomedical theories/paradigms, science of particulars, philosophy of medicine CiteULike Connotea Del.icio.us What's this? (shrink)

We present relational proof systems for the four groups of theories of spatial reasoning: contact relation algebras, Boolean algebras with a contact relation, lattice-based spatial theories, spatial theories based on a proximity relation.

First paragraph: Some reasons for action are relational. I have a relational reason to Φ when I have reason to Φ in virtue of a relationship in which I stand, or a role that I fill; absent that relationship or that role I would not have that reason to Φ ; others who do not stand in that relationship or fill that role do not have that reason to Φ . I have a relational reason (...) to feed this child -- that he is my child: absent that parental relationship, I might still have a reason to feed him, as might others who are not his parents -- for instance that he is starving; but absent that relationship, I would not have and others cannot have that specific relational reason to feed this child. I have a relational reason to respond to this person's philosophical queries -- that she is my student: absent that pedagogical relationship, I might still have reason to respond to her questions, as might others who are not her teachers -- for instance that it is good to help such seekers after philosophical insight; but absent that relationship, I would not have and others cannot have that specific relational reason to respond to her queries. I have relational reason to pay John ￡10 -- that I borrowed it from him and promised to repay him today: absent that promissory relationship I might still have, and others might have, reason to give him ￡10 -- for instance that he is impoverished and I am (or they are) rich; but absent that promissory relationship, neither I nor others could have that specific relational reason to give him ￡10. (shrink)

Recent studies have used self-report methods to defend a close associative or causal connection between appraisal and emotion. The present experiments used similar procedures to investigate remembered experiences of reasonable and unreasonable anger and guilt, and of nonemotional other-blame and selfblame. Results suggest that the patterns of appraisal reported for reasonable examples of emotions and for situations where there is a near absence of emotion may be highly similar, but that both may differ significantly from the appraisal profiles reported for (...) unreasonable examples of the same emotions. Further, relevant appraisals were not always identified by participants as the most influential determinants of guilt and anger. These findings demonstrate either that the relationship between certain appraisals and emotions is less consistent than implied in some contemporary versions of appraisal theory, or that there are problems with the validity of existing questionnaire-based measures of the variables in question. (shrink)

Wollstonecraft's early works express a coherent view of moral psychology, moral education and moral philosophy which guides the construction of her early fiction and educational works. It includes a valuable account of the relation between reason and feeling in moral development. Failure to recognize the complexity and coherence of the view and unhistorical readings have led to mistaken criticisms of Wollstonecraft's position. Part I answers these criticisms; Part II describes and textually supports her view.

I investigate the consequences of interpreting Lehrer's account of system-relative justification as a theory of inductive inference. I discuss which assumptions about coherence would be sufficient to make the account of inductive inference derived from Lehrer's theory conform to a series of widely discussed general principles, including those constitutive of cumulative reasoning. I then discuss the epistemological significance of the resulting theory of inductive inference.

Two experiments investigated the mental representation of spatial and nonspatial two-dimensional problems. The experiments were designed to contrast opposite predictions of the model theory of reasoning and the formal rules of inference theories. Half of the problems required more inferential steps but only one model, whereas the other half required fewer inferential steps but two models. According to the inference rules, theory problems that require more inferential steps should be harder, whereas the model-based theory predicts that problems that require two (...) models should be harder. In Experiments 1a and 1b we measured the problem solving time and the percentage of errors. In Experiments 2a and 2b the problems were presented segmented in two different displays. We measured the comprehension time for each display, the question answering times, and the percentage of errors. The results of all experiments supported the model theory predictions in both spatial and nonspatial domains. (shrink)

Recent philosophical work on the relation between reasoning and bodily action is dominated by two views. It is orthodox to have it that bodily actions can be at most causally involved in reasoning. Others have it that reasoning can constitutively involve bodily actions, where this is understood as a matter of non‐mental bodily events featuring as constituents of practical reasoning. Reflection on cases of reasoning out‐loud suggests a neglected alternative on which both practical and theoretical reasoning can have bodily actions (...) as constituents, where such bodily actions themselves amount to contentful mental events. Furthermore, the natural lines of resistance to this view trade on type‐token errors, or on a questionable common‐factor assumption. (shrink)

Reasoning is not just following logical rules, but a large part of human reasoning depends on our expectations about the world. To some extent, non-monotonic logic has been developed to account for the role of expectations. In this article, the focus is on expectations based on actions and their consequences. The analysis is based on a two-vector model of events where an event is represented in terms of two main components – the force of an action that drives the event, (...) and the result of its application. Actions are modelled in terms of the force domain and the results are modelled with the aid of different domains for locations or properties of objects. As a consequence, the assumption that reasoning about causal relations should be made in terms of propositional structures becomes very unnatural. Instead, the reasoning will be based on the geometric and topological properties of causes and effects modelled in conceptual spaces. (shrink)

This essay is a commentary on Helmut Reich’s recently published book on relational and contextual reasoning (RCR). Reich’s ideas are relevant in contexts of conflict, and they enable us to consider the notion of objectivity differently. He makes us see the constraints in individual perspectives. His book also can enable people to formulate problems of human concern in a wider and richer framework, which may lead to solutions not obtainable on the basis of binary logic.

A. Tarski [22] proposed the study of infinitary consequence operations as the central topic of mathematical logic. He considered monotonicity to be a property of all such operations. In this paper, we weaken the monotonicity requirement and consider more general operations, inference operations. These operations describe the nonmonotonic logics both humans and machines seem to be using when infering defeasible information from incomplete knowledge. We single out a number of interesting families of inference operations. This study of infinitary inference operations (...) is inspired by the results of [12] on nonmonotonic inference relations, and relies on some of the definitions found there. (shrink)

Guided by theories of moral psychology and social identity, one hundred and fifty-three public relations practitioners working in the United States participated in an online experiment that tested...

The possibility of acting for normative reasons calls for explanation, considering that such reasons are facts. Facing this issue, some argue that to act for a normative reason, the normative reason and the reason we act for (i.e. the motivating reason) need to be identical. Others reject the idea that normative reasons are facts in the first place. A conciliatory proposal is that by appealing to dispositions we can simultaneously accept that normative reasons are facts and (...) that we can act for them, without accepting the identity of the normative reasons and the motivating reason. After sketching an example of such a view, I mention an obstacle on its way. This view relies heavily on the correspondence relation, to make the action connected to the normative reason via a descriptive belief. It is argued that this is challenging since the correspondence relation might not be suitable to play the metaphysical role needed. (shrink)

This article examines problems that may arise when addressing liability resulting from the genetic modification of microbes, animals, and plants. More specifically, it evaluates how uncertainties relating to the outcomes of these biotechnological innovations affect—or may affect—the courts' application of the reasonable foreseeability requirement and, hence, liability under the tort of negligence. The article also examines how concern expressed by society about injuries feared to result from these genetically modified products could have an impact on the way the courts assess (...) reasonable foreseeability in this area. (shrink)

A. Tarski [22] proposed the study of infinitary consequence operations as the central topic of mathematical logic. He considered monotonicity to be a property of all such operations. In this paper, we weaken the monotonicity requirement and consider more general operations, inference operations. These operations describe the nonmonotonic logics both humans and machines seem to be using when infering defeasible information from incomplete knowledge. We single out a number of interesting families of inference operations. This study of infinitary inference operations (...) is inspired by the results of [12] on nonmonotonic inference relations, and relies on some of the definitions found there. (shrink)

Most views of agency take acting for reasons (whether explanatory or justifying) to be an important hallmark of the capacity for agency. The problem, however, is that the standard analysis of what it is to act in light of reasons is not sufficiently fine grained to accommodate what we will argue are the myriad types of ways that agents can do so. We suggest that a full account of acting for reasons must also recognize the relationship that agents have with (...) their reasons. We focus on two types of relationships. The first is the traditional case, where agents act in light of reasons that they take to be their own and that they endorse. We describe this as possessing an Endorsement Relationship with one's reasons. A second way of relating to reasons is what we will describe as possessing a Directed Relationship with one's reasons. This includes cases in which agents' actions are the product of reasons but toward which agents do not have an Endorsement Relationship. The Endorsement Relationship is uncontroversial. In this paper, we defend the existence and importance of the Directed Relationship. We show that it is a genuine but overlooked way of relating to, and thereby acting for, reasons. (shrink)

The question "When are research risks reasonable in relation to anticipated benefits?" is at the heart of disputes in the ethics of clinical research. Institutional review boards are often criticized for inconsistent decision-making, a problem that is compounded by a number of contemporary controversies, including the ethics of research involving placebo controls, developing countries, incapable adults and emergency rooms. If this pressing ethical question is to be addressed in a principled way, then a systematic approach to the ethics of risk (...) in research is required. Component analysis provides such a systematic approach. (shrink)

I start by explaining what attitude-related reasons are and why it is plausible to assume that, at least in the domain of practical reason, there are such reasons. Then I turn to Raz’s idea that the practice of practical reasoning commits us to what he calls exclusionary reasons. Being excluded would be a third way, additional to being outweighed and being undermined, in which a reason can be defeated. I try to show that attitude-related reasons can explain the (...) phenomena Raz appeals to equally well. Attitude-related reasons, however, are weighted against other reasons and, thus, don’t determine a third relation of defeat. On this basis, I voice some doubts about Raz’s conception of exclusionary reasons. (shrink)