This text is designed to help students construct and evaluate arguments.

Robert Koons claims that my previous critique of his “new” cosmological argument is vitiated by confusion about the nature of defeasible argumentation.In response, I claim that Koons misrepresents—and perhaps misunderstands—the nature of my objections to his “new” cosmological argument. The main claims which I defend are: (1) that the move from a non-defeasible to a defeasible causal principle makes absolutely no difference to the success of the cosmological argument in which it is contained; and (2) that, since it is perfectly (...) well understood that non-theists have many reasons for rejecting the defeasible causal principle, it is pointless to claim that the move to a defeasible principle brings about a shift in the “burden of proof”. (Since some people may have forgotten—or may choose to ignore—the fact that non-theists do have reasons for rejecting the defeasible causal principle, I also provide a discussion of a modest sample of these reasons.). (shrink)

Common arguments from the abortion debate have set the stage for the debate on stem cell research. Unfortunately, those arguments demonstrate flawed reasoning—jumping to unfounded conclusions, using value laden language rather than careful argument, and ignoring morally relevant aspects of the situation. The influence of flawed abortion arguments on the stem cell debate results in failures of moral reasoning and in lack of attention to important morally relevant differences between abortion and human embryonic stem cells. Among those differences (...) are whose interests are at stake and the difference between an embryo in and out of the womb. Stem cell research differs from abortion in morally relevant ways and should be freed from the abortion debate and its flawed reasoning. (shrink)

In this article, we consider variations of Nuel Belnap’s ‘artificial reasoner’. In particular, we examine cases in which the artificial reasoner is faulty, e.g. situations in which the reasoner is unable to calculate the value of a formula due to an inability to retrieve the values of its atoms. In the first half of the article, we consider two ways of modelling such circumstances and prove the deductive systems arising from these two types of models to be equivalent to (...) Graham Priest’s first-degree entailment with an ‘emptiness’ value and Richard Angell’s analytic containment, making computational interpretations of these systems possible. The Belnap-type semantics for AC bring FDE φ and AC in line with other containment logics in their neighborhood. The second half of the article examines formal questions, such as whether AC admits an analysis along the lines of that given to the related system of William Parry’s system of analytic implication, as suggested by Kurt Gödel and confirmed by Kit Fine. Furthermore, a natural means of extending these systems to languages with an intensional implication connective is investigated. (shrink)

Offering an innovative approach to critical thinking, Good Reasoning Matters! identifies the essential structure of good arguments in a variety of contexts and also provides guidelines to help students construct their own effective arguments. In addition to examining the most common features of faulty reasoning--slanting, bias, propaganda, vagueness, ambiguity, and a common failure to consider opposing points of view--the book introduces a variety of argument schemes and rhetorical techniques. This edition adds material on visual arguments and more (...) exercises. (shrink)

This paper argues that the nonidentity problem is really an artifact of faulty causal reasoning. In order to solve the nonidentity problem, we must determine that an agent causes a loss of happiness to another agent by means of an action that also causes the victim to exist. Woodward’s test for actual causation yields just this result. Equally crucial to solving the problem is the recognition that harms must be intentional and that intentionality is a function of norm-violation; (...) this latter position is defended by Holton. That the solution proposed is adequate is defended on the grounds that it yields intuitively correct judgments for a host of imaginary scenarios contemplated by theorists focused on determining what should count as harms. (shrink)

Do people represent space, time, number, and other conceptual domains using a generalized magnitude system (GMS)? To answer this question, numerous studies have used the spatial‐numerical association of response codes (SNARC) task and its variants. Yet, for a combination of reasons, SNARC‐like effects cannot provide evidence for a GMS, even in principle. Rather, these effects support a broader theory of how people use space metaphorically to scaffold their understanding of myriad non‐spatial domains, whether or not these domains exhibit variation in (...) magnitude. (shrink)

A decision theory can be useful not only as a tool for determining which action, given your desires and beliefs, is most preferable, but also as a means for analyzing the nature of rational deliberation. In this paper, I turn to two classic proposals for a causal decision theory, that of Lewis and that of Sobel :407–437, 1986. doi: 10.1080/00048408612342621). As Rabinowicz revealed, Lewis’ proposal is unable to be applied to as broad a set of decision problems as a version (...) of CDT offered by Sobel, an account of decision theory that Lewis thought was equivalent to his own. Rabinowicz argued by offering a counterexample to Lewis’ account. In this essay, I build on that approach, offering a novel counterexample, the “Faulty Signal Problem,” which proves that Lewis’ theory fails to provide a recommendation in an even broader class decision problems than Rabinowicz recognized, particularly those that exhibit what I refer to as counterfactual asymmetries. The problem for Lewis, however, is not just a technicality. Lewis and Sobel’s theories, respectively, conceptualize rational deliberation in two different ways. Lewis’ proposal, which utilized conditionalization as its form of belief revision, shares with evidential decision theory the same underlying attitude toward the agent as evidence-maker. In contrast, Sobel’s theory, based on imaging, captures the idea that deliberation requires a distinctly suppositional attitude that respects the agent’s causal views. The Faulty Signal Problem not only gives reason to favor Sobel’s proposal over Lewis’; it also provides justification for seeing imaging as necessary for a genuinely causal decision theory. (shrink)

In the modern culture, the phenomenon of the 'disabled' body is a intersection place of its ableist ideology, power relations and pseudoscientific explanations, and they are urged by the neo-eugenic project of the perfect world creating. As the prisoner of the biomedical discourse, such a body, deprived of any agensy, loaded with the culture-historicaly constituated non-power, is a particularly suitable field of the mainstream culture for spreading almost archetypically powerful apocaliptic visions of confronting with the enemy's otherness. For that reason, (...) the underlying supposition of the article is that the 'disabled' body, by means of the uniqueness of its morphology and anatomical-physiological structure, says nothing about itself, the basis of that it which would qualify to be a cult victim of the discriminatory gaze, but it is a reflection the culture frustrated by its own failure to produce an apsolutelly controlable order of things. Our ideas of demonic figure of the 'disabled' body conceal the century-old negentropic struggle of the Western civilization, conceptualy supplied with the criteria, norms and standards of health, normalcy, beauty and the truth, instrumentally supplied with the preventive and rehabilitative provisions of medicine, cosmetology and fashion and institutionally supplied with asylums, to provide itself with kingdom of peace and serenity through pouring out any otherness, first of all the cultural one, intentionally reduced to the pure biological. Fenomen 'ometenog' tela predstavlja u savremenoj kulturi tacku ukrstanja njene 'neometenisticke' ideologije, odnosa moci i pseudonaucnih objasnjenja motivisanih skrivenim neoeugenickim projektom stvaranja savrsenog sveta. Kao zarobljenik biomedicinskog diskursa, takvo telo, liseno ma kakve agensnosti, obremenjeno kulturno-istorijski konstruisanom ne-moci, jeste narocito podesan poligon mejnstrim kulture za sirenje skoro arhetipski snaznih apokaliptickih vizija suocavanja sa neprijateljskom drugoscu. Zato je osnovna teza koju clanak nastoji da dokaze, da 'ometeno' telo specificnoscu svoje morfologije i anatomsko-fizioloske strukture ne govori nista o sebi sto bi ga kvalifikovalo da bude kultna zrtva diskriminisuceg pogleda, vec da je refleksija kulture frustrirane vlastitim neuspehom u proizvodnji apsolutno kontrolabilnog poretka stvari. Iza nase predstave demonskog lika 'ometenog' tela skriva se vekovna negentropijska borba zapadne civilizacije, konceptualno opremljene kriterijumima, normama i standardima zdravlja, normalnosti, lepote i istine, instrumentalno prevencijskim i rehabilitacijskim merama medicine, kozmetike i mode a institucionalno azilima, da obezbedi sebi vecno carstvo mira i spokoja u rastakanju svake drugosti, a ponajpre one kulturne koju namerno redukuje na cisto biolosko. (shrink)

Why do people with psychopathology use less adaptive and more maladaptive strategies for negative emotions if such usage has self-destructive consequences? Although researchers have examined the reasons for people’s engagement in maladaptive “behaviors,” such as nonsuicidal self-injury, surprisingly little attention has been paid to the reasons why people might endorse maladaptive emotion regulation strategies. This article addresses this question, focusing on the case of depression, evaluating an array of 10 possible explanations. After considering the existing evidence, we provide a blueprint (...) to help the field reach stronger conclusions about depression and other forms of psychopathology. Better understanding of the origins of healthy/unhealthy ER has implications for clinical science, clinical practice, as well as their integration. (shrink)

It is widely held that instrumental reasoning to a practical conclusion is parasitic on non-instrumental practical reasoning. This conclusion is based on the claim that when there is no reason to adopt a certain end, there is no reason to take the means (qua means) to that end. But, as will be argued, while there is a sense of reason according to which the previous statement is true, there is another sense according to which it is false. Furthermore, (...) in both of the relevant senses of reason, it is true that reasons are considerations that ground correct conclusions of practical deliberation and correct advice. It follows that instrumental reasoning to a practical conclusion is not invariably parasitic on non-instrumental practical reasoning. The view that it is results from combining the idea that when there is no reason to adopt a certain end, there is no reason to take the means (qua means) to that end, with the common but faulty assumption that considerations that ground correct conclusions of practical deliberation and correct advice are all reasons in a single sense (sometimes referred to as the normative sense of reason). The assumption in question is implicit in, for example, the work of John Broome, T. M. Scanlon, Christine Korsgaard, and Stephen Darwall.1 Given the common identification of normative reasons with considerations that ground correct conclusions of practical deliberation and correct advice, the position that will be defended in this paper can be expressed by saying that there is not one but two senses of reason for which it is true that reasons are normative.. (shrink)

Using the matching bias example, the aim of the present studies was to show that adults' reasoning biases are due to faulty executive inhibition programming. In the first study, the subjects were trained on Wason's classical card selection task; half were given training in how to inhibit the perceptual matching bias (experimental group) and half in logic without the inhibition component (control group). On the pre- and post-tests, their performance was assessed on the Evans conditional rule falsification task (...) (with a negation in the antecedent of the rule), a task that also involves matching bias. In addition, subjects were tested for perceptual field dependence/independence using the Embedded Figures Test. The results brought out a specific inhibition training effect, as well as a clear-cut relationship in the experimental group between receptiveness to training and perceptual field independence. In the second study, the training paradigm was the same except that on the pre- and post-tests, the negation was in the consequent of the conditional rule (in this case, the perceptual matching response corresponds to the logical response). The subjects succeeded on the pre-test, and the matching-bias inhibition training had a negative effect on post-test performance. This specific negative priming effect confirms the inhibitory impact of our experimental training and outlines the dissociation of inhibition and logical components. (shrink)

The last century has seen many disciplines place a greater priority on understanding how people reason in a particular domain, and several illuminating theories of informal logic and argumentation have been developed. Perhaps owing to their diverse backgrounds, there are several connections and overlapping ideas between the theories, which appear to have been overlooked. We focus on Peirce’s development of abductive reasoning [39], Toulmin’s argumentation layout [52], Lakatos’s theory of reasoning in mathematics [23], Pollock’s notions of counterexample [44], (...) and argumentation schemes constructed by Walton et al. [54], and explore some connections between, as well as within, the theories. For instance, we investigate Peirce’s abduction to deal with surprising situations in mathematics, represent Pollock’s examples in terms of Toulmin’s layout, discuss connections between Toulmin’s layout and Walton’s argumentation schemes, and suggest new argumentation schemes to cover the sort of reasoning that Lakatos describes, in which arguments may be accepted as faulty, but revised, rather than being accepted or rejected. We also consider how such theories may apply to reasoning in mathematics: in particular, we aim to build on ideas such as Dove’s [13], which help to show ways in which the work of Lakatos fits into the informal reasoning community. (shrink)

According to "the argument from discernment", sympathetic motivation is morally faulty, because it is morally undiscriminating. Sympathy can incline you to do the right thing, but it can also incline you to do the wrong thing. And if so, it is no better as a reason for doing something than any other morally arbitrary consideration. The only truly morally good form of motivation--because the only morally non-arbitrary one--involves treating an action's rightness as your reason for performing it. This paper (...) attacks the argument from discernment and argues against its conclusion. (shrink)

According to “the argument from discernment”, sympathetic motivation is morally faulty, because it is morally undiscriminating. Sympathy can incline you to do the right thing, but it can also incline you to do the wrong thing. And if so, it is no better as a reason for doing something than any other morally arbitrary consideration. The only truly morally good form of motivation–because the only morally non‐arbitrary one–involves treating an action's lightness as your reason for performing it. This paper (...) attacks the argument from discernment and argues against its conclusion. (shrink)

A concise, easy-to-read introduction to informal logic, "With Good Reason" offers both comprehensive coverage of informal fallacies and an abundance of engaging examples of both well-conceived and faulty arguments. A long-time favorite of both students and instructors, the text continues in its sixth edition to provide an abundance of exercises that help students identify, correct, and avoid common errors in argumentation.

The aim of this chapter is to explore the relationship between metaphor and reasoning, by claiming that argumentation might act as a bridge between metaphor and reasoning. Firstly, the chapter introduces metaphor as a framing strategy through which some relevant properties of a source domain are selected to understand a target domain. The mapping of properties from the source to the target domain implicitly forces the interpreter to consider the target from a specific perspective. Secondly, the chapter presents (...) metaphor as an implicit argument where some inferences can be drawn from the comparison between the source and the target domain. In particular, this chapter aims to understand whether and to what extent such an argument might be linked to analogical reasoning. The chapter argues that, in case of faulty analogy, this kind of argument might have the form of a quaternio terminorum, where metaphor is the middle term. Finally, the chapter presents the results of an experimental study, aiming to test the effect of the linguistic nature of the middle term on the detection of such faulty analogy. The chapter concludes that a wider context is needed to make sense of an analogical argument with novel metaphors, whilst in a narrow context, a lexicalised metaphor might be extended and the overall argument might be interpreted as metaphoric. (shrink)

Trends in the history of social science dedicated to the study of crime and punishment are presented as a case study supporting F.A. Hayek's theory of social change. Designing effective social institutions and public policies first requires an accurate vision of how society operates. An accurate model of society further requires scientific methods uniquely suited for the study of human beings as purposeful agents and the study of human institutions as complex social phenomena. If guided by faulty methods, theories (...) are inaccurate and policy outcomes veer from their intentions. Hayek termed such outcomes "abuses of reason". Aiming to replicate the objectivity of physical sciences via formal modeling and statistical measurement, economists throughout the 20th century imposed an excessively technical vision of human decision-making. Policy failures and social problems resulted. This paper argues that the historical trends of applied social science dedicated to crime and punishment can be understood similarly. Formal modeling and statistical measurement continuously displaced methods more attuned to human intentionality and social complexity. In result, amidst a long-run history of intellectual and political change, US law enforcement and criminal punishment policies became technocratic, and outcomes became disjointed from their stated intentions to promote social order and welfare. (shrink)

Improving Your Reasoning is an expanded version of Chapter 10 of the author's larger work, Principles of Logic. The first chapter of Improving Your Reasoning is a general survey of arguments--deductive and inductive, valid and invalid, syllogistic and nonsyllogistic--and serves as an introduction for the rest of the book which deals only with fallacies. The types of fallacies are divided by chapter into the following principal categories: begging the question, pseudoauthority, irrelevant appeals, confusion, faulty classification, political fallacies, (...) and inductive fallacies. Each of these categories is further divided into a comprehensive range of sub-categories, with each sub-category presented in a short and easily understandable section. For example, inductive fallacies are divided into hasty generalization, accident, false cause, gambler's, faulty analogy, central tendency, misleading percentages, and misleading totals. Problems and answers are provided. This book may be used as a supplementary text for introductory logic.--T. G. N. (shrink)

Biblical anthropology is demonstrably both holist and dualist. It is holist in teaching that God created, redeems, and will glorify humans as whole embodied persons. It is dualist in teaching that God created humans of two ingredients and that he sustains persons apart from their bodies between death and resurrection. This chapter shows that key arguments against dualism are compromised by problematic hermeneutics, conceptual confusions, and faulty reasoning. It also shows that monism cannot account for the texts which (...) imply dualism, and that dualism is compatible with holism. N. T. Wright corroborates the exegesis supporting these conclusions but defines and rejects dualism as incompatible with holism. Nevertheless, his understanding of holism is compatible with virtually all current Christian dualism. However, Joel Green's holistic exegesis, integral anthropology, and practical theology make valuable contributions that dualists can affirm. (shrink)

This paper criticizes De George's portrayal of theological ethics and its purported inability to make a distinctive contribution to business ethics with the following theses. (1) De George's understanding of the nature of theological ethics is faulty. Consequently his typology of the field is not an adequate description of the range of prevailing approaches. (2) A constructive proposal for religious ethics is offered which takes as its starting points (a) an aspect of human experience (self-transcendence) and (b) the human (...) capacity to reason in order to claim (via Kant, Rahner, Gamwell, and others) that practical reason is religious in nature. As such, a distinctive contribution of religious ethics is its capacity to evaluate business activity in terms of its consistency with our most fundamental, all-inclusive human loyalities and affirmations about the nature of reality itself. (shrink)

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 sizable, significant work focuses with novel insight on broad logical features in Galileo's Dialogue on the Two Chief World Systems. Part 1 perceptively examines its rhetorical, logical, scientific, and methodological contents. Anchored in these findings, a second part emends faulty interpretations and scholarly opinions, while sympathetically criticizing recent directions toward a more humanistic logic. From Galileo properly assessed a third part distils a concrete-practical logic that is primarily critical reasoning about reasoning.

The 'no-supervenience' theorem (Reason, 2019; Reason and Shah, 2021) is a proof that no fully self-aware system can entirely supervene on any objectively observable system. I here present a simple, non-technical summary of the proof and demonstrate its implications for four separate theories of consciousness: the 'property dualism' theory of David Chalmers; the 'reflexive monism' of Max Velmans; Galen Strawson's 'realistic monism'; and the 'illusionism' of Keith Frankish. It is shown that all are ruled out in their current form by (...) the no-supervenience theorem, except for Chalmers' theory, which I show requires humans to behave irrationally. (shrink)

We offer a model of moral reform and regeneration that involves a wrong-doer making two movements: on the one hand, he identifies with himself as the one who did the act, while he also intentionally moves away from that self (or set of desires and intentions) and moves toward a transformed identity. We see this model at work in the formal practice of contrition and reform in Christian and Buddhist rites. This paper is part of a broader project we are (...) undertaking on the philosophy of forgiveness. (shrink)

This chapter contains sections titled: Reincarnation/Rebirth Karma Causality Problem of Evil Determinism, Freedom, and Moral Responsibility Karma and Release Transfer of Merit Recent Developments Works cited.

Conscious macrostates are usually assumed to be emergent from the underlying physical microstates comprising the brain and nervous system of biological organisms. However, a major problem with this assumption is that consciousness is essentially nonmeasurable unlike all other proven emergent properties of physical systems. In an earlier paper, using a no-go theorem, it was shown that conscious states cannot be comprised of processes that are physical in nature (Reason, 2019). Combining this result with another unrelated work on causal emergence in (...) physical systems (Hoel, Albantakis and Tononi, 2013), we show in this paper that conscious macrostates are not emergent from physical systems and they also do not supervene on physical microstates. An important implication of our work is that there must be some form of violation of energy conservation in biological systems that are conscious. (shrink)