This paper argues that some widely used laws of implication are false, and arguments based upon them invalid. These laws are Exportation, Commutation, (as well as various restricted forms of these), Exported Syllogism and Disjunctive Syllogism. All these laws are false for the same reason – that they license the suppression or replacement in some position of some class of propositions which cannot legitimately be suppressed or replaced. These laws fail to preserve the property of sufficiency of premiss set for (...) conclusion. They are false, and can be seen to be false, independently of their respon- sibility for the paradoxes. Hence the main ‘independent’ argument for the paradoxes – that they follow from an allegedly immaculate set of laws – is undermined. Counterexamples to all these laws are produced. (shrink)

This paper offers general support for what Valerie Plumwood’s paper is trying to achieve by supporting the rejection of each of her four “false laws of logic”: exportation, illegitimate replacement, commutation (aka. permutation) and disjunctive syllogism. We start by considering her general characterizations of entailment, beginning with her stated definition of entailment as the converse of deducibility. However, this applies to a wide range of relevant logics and so is not able to be used as a criterion for (...) deciding what laws to include in a logic. In this context, we examine the two key differences between deduction from premises to conclusion and entailment from antecedent to consequent. We also consider her use of sufficiency as a general characterizing feature. We then discuss Plumwood’s syntactic criteria used to reject the first three of her false laws of logic and add the Relevance Condition in this context. We next consider semantic characterizing criteria for a logic. After making a case against using truth, we introduce Brady’s logic MC of meaning containment. We then examine the content semantics for MC and use it to reject all of Plumwood’s false laws of logic together with some others. We follow with the related Depth Relevance Condition, which is a syntactic cri- terion satisfied by MC. This clearly rejects the first three of these laws and many others, but not the fourth law. We conclude by giving our overall support for her general enterprise. (shrink)

This is an introduction to the special issue of the AJL on Val Plumwood's manuscript "False Laws of Logic" and her other work in logic.

Valerie Plumwood introduced in "Some false laws of logic" a series of arguments on how the rules Exported Syllogism, Disjunctive Syllogism, Commutation, and Exportation are not acceptable. Based on this we define the class of Plumwood algebras - logical matrices that do not verify any of these theses. Afterwards we provide conditional variants of the characteristic matrix of the logic RM3 that are also Plumwood algebras. These matrices are given an axiomatization based on First Degree Entailment (...) and are endowed with Belnap-Dunn Semantics. Finally we provide results of Soundness and Completeness in the strong sense for each of the defined variants. (shrink)

A key facet of Valerie Plumwood’s feminist critique of logic is her analysis of classical negation. On Plumwood’s reading, the exclusionary features of classical negation generate hierarchical dualisms, i.e., dichotomies in which dominant groups’ primacy is reinforced while underprivileged groups are oppressed. For example, Plumwood identifies the system collapse following from ex contradictione quodlibet—that a theory including both φ and ∼φ trivializes—as a primary source of many of these features. Although Plumwood considers the principle of (...) excluded middle to be compatible with her goals, that she identifies relevant logics as systems lacking a hierarchical negation—whose first-degree fragments are both paraconsistent and paracomplete—suggests that excluded middle plays some role in hierarchical dualisms as well. In these notes, I examine the role of excluded middle in generating oppressive homogenization and try to clarify the relationship between Plumwood’s critique and this principle from several contemporary perspectives. Finally, I examine the matter of whether Plumwood’s critique requires relevance or whether a non-relevant logic could satisfy her criteria and serve as a liberatory logic of difference. (shrink)

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To what extent should we focus on implicit bias in order to eradicate persistent social injustice? Structural prioritizers argue that we should focus less on individual minds than on unjust social structures, while equal prioritizers think that both are equally important. This article introduces the framework of transactive memory into the debate to defend the equal priority view. The transactive memory framework helps us see how structure can emerge from individual interactions as an irreducibly social product. If this is right, (...) then debiasing interventions are structural interventions. One upshot is that the utility of the individual versus structural distinction is not apparent for the purposes of intervention. (shrink)

EDITORS' INTRODUCTION Perhaps the single most broadly unifying feature of the early new archaeology was the demand that archaeologists not take the aims and ...

Two of the most important political movements of the late twentieth century are those of environmentalism and feminism. In this book, Val Plumwood argues that feminist theory has an important opportunity to make a major contribution to the debates in political ecology and environmental philosophy. _Feminism and the Mastery of Nature_ explains the relation between ecofeminism, or ecological feminism, and other feminist theories including radical green theories such as deep ecology. Val Plumwood provides a philosophically informed account of (...) the relation of women and nature, and shows how relating male domination to the domination of nature is important and yet remains a dilemma for women. (shrink)

Feminists working in the area of environmental thought argue that ecology is a feminist issue. They have drawn widely on the conceptual and critical resources of feminist philosophy both to develop a more complete feminist account of the world, and to expose masculinism where it appears in both traditional Western ecological thought and in modern environmental philosophy, producing a rich variety of feminist approaches to environmental philosophies. Their efforts have contributed to extending the critical resources and scope of both feminist (...) thought and environmental thought, bringing to each a further major set of concerns, perspectives, and theoretical constraints. (shrink)

In this much-needed account of what has gone wrong in our thinking about the environment, Val Plumwood digs at the roots of environmental degradation. She argues that we need to see nature as an end itself, rather than an instrument to get what we want. Using a range of examples, Plumwood presents a radically new picture of how our culture must change to accommodate nature.

Intuitively, there is a difference between knowledge and mere belief. Contemporary philosophical work on the nature of this difference has focused on scenarios known as “Gettier cases.” Designed as counterexamples to the classical theory that knowledge is justified true belief, these cases feature agents who arrive at true beliefs in ways which seem reasonable or justified, while nevertheless seeming to lack knowledge. Prior empirical investigation of these cases has raised questions about whether lay people generally share philosophers’ intuitions about these (...) cases, or whether lay intuitions vary depending on individual factors (e.g. ethnicity) or factors related to specific types of Gettier cases (e.g. cases that include apparent evidence). We report an experiment on lay attributions of knowledge and justification for a wide range of Gettier Cases and for a related class of controversial cases known as Skeptical Pressure cases, which are also thought by philosophers to elicit intuitive denials of knowledge. Although participants rated true beliefs in Gettier and Skeptical Pressure cases as being justified, they were significantly less likely to attribute knowledge for these cases than for matched true belief cases. This pattern of response was consistent across different variations of Gettier cases and did not vary by ethnicity or gender, although attributions of justification were found to be positively related to measures of empathy. These findings therefore suggest that across demographic groups, laypeople share similar epistemic concepts with philosophers, recognizing a difference between knowledge and justified true belief. (shrink)

Rationalism is the key to the connected oppressions of women and nature in the West. Deep ecology has failed to provide an adequate historical perspective or an adequate challenge to human/nature dualism. A relational account of self enables us to reject an instrumental view of nature and develop an alternative based on respect without denying that nature is distinct from the self. This shift of focus links feminist, environmentalist, and certain forms of socialist critiques. The critique of anthropocentrism is not (...) sacrificed, as deep ecologists argue, but enriched. (shrink)

Social problems such as racism, sexism, and inequality are often cited as structural rather than individual in nature. What does it mean to invoke a social structural explanation, and how do such explanations relate to individualistic ones? This article explores recent philosophical debates concerning the nature and usages of social structural explanation. I distinguish between two central kinds of social structural explanation: those that are autonomous from psychology, and those that are not. This distinction will help clarify the explanatory power (...) that each type of SSE has, points of convergence with methodological traditions such as critical theory and rational choice theory, and the difficulties that each type of SSE faces. (shrink)

Legal systems in the Western world currently regard animals as property. This status implies that they are not subjects of rights. None of the recent legal measures aimed at protecting animals have conferred on them the legal status of person, which is arguably a necessary condition to benefit from the most fundamental individual rights. In this chapter, we argue that the type of control of animals that is based on property rights and domination is ethically unacceptable. We also argue that (...) extending personhood and its corresponding rights to all sentient beings is the best way to ensure that they are not made to suffer unnecessarily and that they are protected from domination. While there may exist morally legitimate occurrences of human control over other animals, justice requires that we abolish all forms of their exploitation. (shrink)

The data discussed strongly suggest that neural imaging does not unduly sway judges and jurors; in fact, it is often counterproductive. The percentage of appellate cases in which the decision was favorable to defendants with brain scan data mirrored those of decisions without such proffered evidence. Moreover, fully two-thirds of the scans admitted were either inconclusive or showed normal brain structures. In decisions referencing brain scans, judges mentioned defendant behavior significantly more often than they referred to the defendant’s brain. Finally, (...) in the actual decisions themselves, judges often ignored relevant imaging data in favor of case precedent or misinterpreted the data so that they would fit with the judges’ initial reactions and opinions. (shrink)

Platonism, Ficino to Foucault explores some key chapters in the history Platonic philosophy from the revival of Plato in the fifteenth century to the new reading of Platonic dialogues promoted by the so-called ‘Critique of Modernity’.

Sugar, pork, beer, corn, cider, scrapple, and hoppin' John all became staples in the diet of colonial America. The ways Americans cultivated and prepared food and the values they attributed to it played an important role in shaping the identity of the newborn nation. In A Revolution in Eating, James E. McWilliams presents a colorful and spirited tour of culinary attitudes, tastes, and techniques throughout colonial America. Confronted by strange new animals, plants, and landscapes, settlers in the colonies and West (...) Indies found new ways to produce food. Integrating their British and European tastes with the demands and bounty of the rugged American environment, early Americans developed a range of regional cuisines. From the kitchen tables of typical Puritan families to Iroquois longhouses in the backcountry and slave kitchens on southern plantations, McWilliams portrays the grand variety and inventiveness that characterized colonial cuisine. As colonial America grew, so did its palate, as interactions among European settlers, Native Americans, and African slaves created new dishes and attitudes about food. McWilliams considers how Indian corn, once thought by the colonists as "fit for swine," became a fixture in the colonial diet. He also examines the ways in which African slaves influenced West Indian and American southern cuisine. While a mania for all things British was a unifying feature of eighteenth-century cuisine, the colonies discovered a national beverage in domestically brewed beer, which came to symbolize solidarity and loyalty to the patriotic cause in the Revolutionary era. The beer and alcohol industry also instigated unprecedented trade among the colonies and further integrated colonial habits and tastes. Victory in the American Revolution initiated a "culinary declaration of independence," prompting the antimonarchical habits of simplicity, frugality, and frontier ruggedness to define American cuisine. McWilliams demonstrates that this was a shift not so much in new ingredients or cooking methods, as in the way Americans imbued food and cuisine with values that continue to shape American attitudes to this day. (shrink)

It is commonly accepted that what we ought to do collectively does not imply anything about what each of us ought to do individually. According to this line of reasoning, if cooperating will make no difference to an outcome, then you are not morally required to do it. And if cooperating will be personally costly to you as well, this is an even stronger reason to not do it. However, this reasoning results in a self-defeating, yet entirely predictable outcome. If (...) everyone is rational, no one will cooperate, resulting in an aggregate outcome that is devastating for everyone. This dismal analysis explains why climate change and other collective action problems are so difficult to ameliorate. The goal of this paper is to provide a different, exploratory framework for thinking about individual reasons for action in collective action problems. I argue that the concept of commitment gives us a new perspective on collective action problems. Once we take the structure of commitment into account, this activates requirements of diachronic rationality that give individuals instrumental reasons to cooperate in collective action problems. (shrink)

As of this writing, twenty‐one states have passed laws barring transgender youth‐athletes from competing on public‐school sports teams in accordance with their gender identity. Proponents of these regulations claim that transgender females in particular have inherent physiological advantages that threaten a “level playing field” for their cisgender competitors. Existing evidence is limited but does not support these restrictions. Gathering more robust data will require allowing transgender youth to compete (rather than preemptively barring them), but even if trans females are shown (...) to retain some advantage, this would not have greater moral significance than the many other “fair” physical and economic advantages found across sports. These regulations deprive transgender youth, an exceptionally vulnerable population, from the vast physical, mental, and social benefits of sports. While we advocate for transgender inclusion under our current, gender‐segregated model of sport, we propose changes to the overarching structure that would promote a more inclusive and fairer athletic environment. (shrink)

Just war thinking serves a social and psychological role that international law cannot fill. Law is dispassionate and objective, while just war thinking accounts for emotions and the situatedness of individuals. While law works on us externally, making us accountable to certain people and institutions, just war thinking affects us internally, making us accountable to ourselves. Psychologically, an external focus leads to feelings of shame, while an inward focus generates feelings of guilt. Philosophers have long recognized the importance of these (...) two moral emotions. Recently, psychologists have found that feelings of guilt are linked to positive social outcomes, such as the desire for reconciliation and reparation, while shame generates anger and hostility. Just war thinking, as an inward-looking tradition, has a special relationship with guilt. By focusing on moral emotions, just war thinking can move beyond the law in four ways, by developing an ethic of accountability, by providing a foundation for addressing moral injury, by providing a common language for discussing the costs of war, and for identifying ethical problems in radically new contexts. (shrink)

(2014). Tin Men: Ethics, Cybernetics and the Importance of Soul. Journal of Military Ethics: Vol. 13, No. 1, pp. 3-19. doi: 10.1080/15027570.2014.908011.

In this posthumously published paper Val Plumwood reflects on two personal encounters with death, being seized as prey by a crocodile and burying her son in a country cemetery with a flourishing botanic community. She challenges the exceptionalism which sets the human self apart from nature and which is reflected in the choice between two conceptions of death, one of continuity in the realm of spirit, the other a reductive materialist conception in which death marks the end of the (...) story of the self. Both perspectives structure out the basis of animal existence – that we are all food, and through death nourish others. She commends an animistic materialist approach, where life is seen as in circulation and where mortuary practices might affirm death as an opportunity of life for others in the ecological community. (shrink)

The critique of anthrocentrism has been one of the major tasks of ecophilosophy, whose characteristic general thesis has been that our frameworks of morality and rationality must be challenged to include consideration of nonhumans. But the core of anthrocentrism is embattled and its relationship to practical environmental activism is problematic. I shall argue here that although the criticisms that have been made of the core concept have some justice, the primary problem is not the framework challenge or the core concept (...) itself, but rather certain problematic understandings of it which have developed in environmental philosophy. In the case of the intrinsic/instrumental distinction, much of the criticism turns on unrealistic expectations about what the distinction means and what it can do; in the case of anthropocentrism, a perverse reading which I will call cosmic anthrocentrism has invited many of the criticisms which have been widely seen as fatal to the concept. Using concepts and models originating in feminist theory and other liberation critiques, I outline an alternative, feminist rereading of anthrocentrism. I argue that this model is theoretically illuminating and capable of meeting major objections that the perverse readings have invited. Critics of the core distinctions have almost universally identified the two core concepts and issues of anthrocentrism and instrumental/intrinsic value. The analysis I present will show how these concepts and issues are connected, but also why there is more to anthrocentrism than the failure to recognise the intrinsic value of nature, and why anthrocentrism rather that intrinsic value should be the major conceptual focus of environmental critique. It will also show why the framework challenge is of practical importance to the green movement and why anthrocentrism is a serious problem in contemporary life. (shrink)

Women, Humanity and Nature Val Plum wood There is now a growing awareness that the Western philosophical tradition which has identified, on the one hand, maleness with the sphere of rationality, and on the other hand, femaleness with the sphere...

: The Millennium Ecosystem Assessment Report issued in April 2005 shows how severely our civilisation is degrading and overstressing the natural systems that support human life and all other lives on earth. An important critical challenge, especially for the eco-humanities, is to help us understand the conceptual frameworks and systems that disappear the crucial support provided by natural systems and prevent us from seeing nature as a field of agency. This paper considers the currently popular concept of a cultural landscape (...) as an example of a concept that downplays natural agency, and discusses the epistemology of nature scepticism and nature cynicism that often accompanies its vogue in the humanities. Can some philosophical disentangling of senses of nature (often considered the most complex term in the language) allow sceptics their main points without placing them on such a strong collision course with the requirements of commonsense and survival? (shrink)

How should you live? Should you devote yourself to perfecting a single talent or try to live a balanced life? Should you lighten up and have more fun, or buckle down and try to achieve greatness? Should you try to be a better friend? Should you be self-critical or self-accepting? And how should you decide among the possibilities open to you? Should you consult experts, listen to your parents, or should you do lots of research? Should you make lists of (...) pros and cons, or go with your gut? These are not questions that can be answered in general or in the abstract. Rather, these questions are addressed to the first person point of view, to the perspective each of us occupies when we reflect on how to live without knowing exactly what we're aiming for. To answer them, this book focuses on the process of living one's life from the inside, rather than on defining goals from the outside. Drawing on traditional philosophical sources as well as literature and recent work in social psychology, this book argues that to live well, we need to develop reflective wisdom: to care about things that will sustain us and give us good experiences, to have perspective on our successes and failures, and to be moderately self-aware and cautiously optimistic about human nature. Further, we need to know when to think about our values, character, and choices, and when not to. A crucial part of wisdom, the book maintains, is being able to shift perspectives: to be self-critical; to be realistic; to examine life when reflection is appropriate, but not when we should lose ourselves in experience. (shrink)

I argue that Janna Thompson’s critique of environmental ethics misrepresents the work of certain proponents of non-instrumental value theory and overlooks the ways in which intrinsie values have been related to valuers and their preferences. Some of the difficulties raised for environmental ethics are real but would only be fatal if environmental ethics could not be supplemented by a wider environmental philosophy and practice. The proper context and motivation for the development of non-instrumental theories is not that of an objectivist (...) value theory but rejection of the human domination and chauvinism involved in even the broadest instrumental accounts of nature as spiritual resource. (shrink)

The number of distributors selling Fair Trade products is constantly increasing. What are their motivations to distribute Fair Trade products? How do they organise this distribution? Do they apply and communicate the Fair Trade values? This research, based on five case studies in Switzerland, aims at understanding and structuring the strategies and the managerial practices related to Fair Trade product distribution, as well as analysing if they denote an engagement with Fair Trade principles. The results show a high heterogeneity of (...) strategies and engagement. In general, strategies implemented by mainstream actors contribute to increase Fair Trade global sales but do not convey the transformative message of Fair Trade through their engagement. The latter is rather communicated through alternative channels. Problems and potential solutions to this issue are discussed. (shrink)