Following observations of Aristotle, Kant, Newton, Leibniz and Einstein (on space), we can devise a means of showing how the ontology of time supports the precedes-succeeds logic, which the temporal series shares with those of space and number, and how the past-present-future account is consistent with that. Time, by a relativist, not absolutist, account, turns out to be the existence and nonexistence of exactly the same thing in exactly the same respect. Both A and not-A can be the case, but (...) not at the same time. On the relativist view their both being the case constitutes time. This turns out to be, in the most general sense, a causal theory of time. (Published Online February 27 2006). (shrink)

This is of course the relational, as opposed to the Newtonian absolutist, theory of space and time. The trouble is, as Clarke indicated several times during the correspondence, and as Russell pointed out in his early study of Leibniz: if continua such as space and time are relations, then it must be shown how a relation can behave as we recognize a continuum to do. How, for example, can a relation be divided or measured as we think space and time (...) can? Russell says. (shrink)

Sydney Shoemaker argues that time without change is possible, but begs the question by assuming an, in effect, Newtonian absolute time, that 'flows equably' in a region in which there is no change and in one in which there is. An equally possible, relativist, assumption, consistent, it seems, with relativity theory, is that where nothing changes there is no time flow, though there may be elsewhere, where there is change. Such an assumption would require some revision of uncritical common thought (...) about time. Aristotle argues that there is no time without change but that time is not change. His arguments for the latter can be faulted both internally and again in terms of the same relativist assumption. From the Physics we can derive, though Aristotle himself did not, an argument that time is to change as geometrical space is to body: the thing itself in abstraction. (shrink)

To prove the equivalence one must start with one side, and the earlier-later side seems, for starting with, logically the clearer. The equivalence is provable on reasonable definitions of ‘past’, ‘present’ and ‘future’ in terms of the earlier-later structure of time. McTaggart's attempted distinction between the past-present-future A series and the earlier-later B series, as though they were rivals for the structure of time, is based on an unexamined, and false, assumption. The equivalence shows they are not rivals; they are (...) quite consistent with each other. A very serious consequence is that all subsequent argument, from the A side or the B, however sophisticated, is flawed to the extent that it accepts McTaggart's false distinction. (shrink)

Philosophical development of Leibniz's view that time is merely earlier–later order is necessary because neither Leibniz nor modern followers sufficiently answered the Newtonian charge that order does not give quantity. Logically, order is transitive, quantity, as in distance, is not. Quantity, as well as order, is naturally assumed in Newton's absolute time, so that to declare the mere relative order sufficient is to have to show how quantity can arise for it. The modern theory of the continuum, perfectly applicable to (...) Newton's absolute, does not show this but assumes quantity. The development given here shows how interval, instant and simultaneity can be logically developed from Leibniz's insight. (shrink)

The argument of J. M. E. McTaggart in ‘The Unreality of Time’ (Mind 1908) fails logically. There is no A series as such, but there is a shifting past-present-future arrangement within and consistent with the earlier-later B series, past being always earlier, future always later, present always a position earlier or later. An exactly similar logical structure is constructible within the number series, by making each number as one goes up it in turn (it does not matter what ‘it’, or (...) ‘present’, means, ontologically). The subsequent argument that past-present-future time falls into contradiction then fails also, and proves to be equivocal. (shrink)

This revised edition has been published in the light of a questionnaire answered in detail by users of the first edition. The nature of psychology; the growth and development of the human being; motivation, emotion, adjustment; learning and thinking; perception; individuality and its appraisal; psychology and social problems are considered, and in that order. The text includes a section on psychology as a profession. The end of each chapter has a summary and suggestions for further reading. A glossary of psychological (...) terms and author and subject indices complete the work. (shrink)

This is a textbook of Scholastic psychology with “a short, simple survey and critical evaluation of the most important data of contemporary experimental and dynamic psychology.” It has six sections, the first an introduction to philosophical psychology; then parts one and two deal respectively with plant and animal life. Parts three, four and five deal respectively with human sense life, human rational life and man as a person, each part having two sections, empirical and a philosophical. There are some footnotes, (...) valuable suggestions for reading, a general bibliography and an index. (shrink)

As a natural example of a 1-random real, Chaitin proposed the halting probability Ω of a universal prefix-free machine. We can relativize this example by considering a universal prefix-free oracle machine U. Let [Formula: see text] be the halting probability of UA; this gives a natural uniform way of producing an A-random real for every A ∈ 2ω. It is this operator which is our primary object of study. We can draw an analogy between the jump operator from computability theory (...) and this Omega operator. But unlike the jump, which is invariant under the choice of an effective enumeration of the partial computable functions, [Formula: see text] can be vastly different for different choices of U. Even for a fixed U, there are oracles A =* B such that [Formula: see text] and [Formula: see text] are 1-random relative to each other. We prove this and many other interesting properties of Omega operators. We investigate these operators from the perspective of analysis, computability theory, and of course, algorithmic randomness. (shrink)

Late in 1990, the Center for the Study of Ethics in the Professions at Illinois Institute of Technology (lIT) received a grant of more than $200,000 from the National Science Foundation to try a campus-wide approach to integrating professional ethics into its technical curriculum.! Enough has now been accomplished to draw some tentative conclusions. I am the grant's principal investigator. In this paper, I shall describe what we at lIT did, what we learned, and what others, especially philosophers, can learn (...) from us. We set out to develop an approach that others could profitably adopt. I believe that we succeeded. (shrink)

A real is called properly n-generic if it is n-generic but not n+1-generic. We show that every 1-generic real computes a properly 1-generic real. On the other hand, if m > n ≥ 2 then an m-generic real cannot compute a properly n-generic real.

What does it mean to assert or deny the existence of a legal system? How can one determine whether a given law belongs to a certain legal system? What kind of structure do these systems have, that is--what necessary relations obtain between their laws? The examination of these problems in this volume leads to a new approach to traditional jurisprudential question, though the conclusions are based on a critical appraisal, particularly those of Bentham, Austin, Kelsen, and Hart.

According to the indispensability argument, the fact that we quantify over numbers, sets and functions in our best scientific theories gives us reason for believing that such objects exist. I examine a strategy to dispense with such quantification by simply replacing any given platonistic theory by the set of sentences in the nominalist vocabulary it logically entails. I argue that, as a strategy, this response fails: for there is no guarantee that the nominalist world that go beyond the set of (...) sentences in the nominalist language such theories entail. However, I argue that what such theories show is that mathematics can enable us to express possibilities about the concrete world that may not be expressible in nominalistically acceptable language. While I grant that this may make quantification over abstracta indispensable, I deny that such indispensability is a reason for accepting them into our ontology. I urge that the nominalist should be allowed to quantify over abstracta whilst denying their existence and I explain how this apparently contradictory practice (a practice I call 'weaseling') is in fact coherent, unproblematic and rational. Finally, I examine the view that platonistic theories are simpler or more attractive than their nominalistic reformulations, and thus that abstract ought to be accepted into our ontology for the same sorts of reasons as other theoretical objects. I argue that, at least in the case of numbers, functions and sets, such arguments misunderstand the kind of simplicity and attractiveness we seek. (shrink)

Hershenov (2005) gives two interesting, related arguments, which he calls ‘symmetry arguments’, to the effect that a living body or an organism cannot be identical to a corpse, superficial appearances to the contrary. I relate the two arguments briefly and then criticize them for related weaknesses.

This note addresses the problems that arise from denying conditionals in classical logic and concludes that such problems result from using propositional logic where predicate logic with quantification over cases is indicated.

_Moral Self-Regard_ draws on the work of Marcia Baron, Joseph Butler and Allen Wood, among others in this first extensive study of the nature, foundation and significance of duties to oneself in Kant's moral theory.

Marx’s polemic against Proudhon represents a crucial stage in the development of his dialectical method and his conception of history and progress. The critique of Proudhon demonstrates Marx’s hostility towards the very teleological account of social change of which he has himself been accused. In order to redress this imbalance, the break with Proudhon is presented here as a result of Marx’s rejection of the speculative Hegelian dialectic. This rejection is an exercise in self-criticism that is highly relevant to our (...) understanding of Marxian theory in general. (shrink)

The debate concerning the role of intuitions in philosophy has been characterized by a fundamental disagreement between two main camps. The first, the autonomists, hold that, due to the use in philosophical investigation of appeals to intuition, most of the central questions of philosophy can in principle be answered by philosophical investigation and argument without relying on the sciences. The second, the naturalists, deny the possibility of a priori knowledge and are skeptical of the role of intuition in providing evidence (...) in philosophical inquiry. In spite of the seemingly stark and deep disagreement between the autonomist and the naturalist, in this paper I will attempt to suggest that there is a way to mount a partial defense of intuition-based philosophical practice on naturalist grounds. As will be seen, doing so will require a number of concessions that will satisfy few autonomists while simultaneously disappointing those naturalists who might have thought that all notions of the a priori had been successfully laid to rest. However, I will argue that the account proposed here will preserve those features of traditional philosophical practice that matter most and better explain the history of successes and failures of that practice, thus answering the worries of the autonomist, and that the rejection of the No A Priori Thesis attendant with the account presented here is indeed demanded by the current theories of our best scientific understanding of the mind, thus pacifying the rabid naturalistic critic of any version of apriorism. (shrink)

Gabriele Contessa has recently introduced and defended a view he calls ‘non-eliminative nihilism’. Non-eliminative nihilism is the conjunction of mereological nihilism and non-eliminativism about ordinary objects. Mereological nihilism is the thesis that composite objects do not exist, where something is a composite object just in case it has proper parts. Eliminativism about ordinary objects denies that ordinary objects exist. Eliminativism thus implies, for example, that there are no galaxies, planets, stars, ships, tables, books, organisms, cells, molecules, or atoms. Non-eliminativism is (...) the denial of eliminativism. Thus, NEN is the intriguing thesis that although composite objects do not exist, ordinary objects do. In this essay, I, first, summarize Contessa’s core support for NEN. Second, I describe two flaws in that support when it comes to organismic terms. Third, I consider and reject two possible responses on behalf of NEN’s defenders. Fourth, I show how the flaws cast doubt upon NEN itself. Finally, I offer reasons to think that if nihilism is true, then the folk have probably been trying to fix the reference of organismic terms to apparent objects within illusions. (shrink)

It is commonly believed that parents have special duties toward their children—weightier duties than they owe other children. How these duties are acquired, however, is not well understood. This is problematic when claims about parental responsibilities are challenged; for example, when people deny that they are morally responsible for their biological offspring. In this paper I present a theory of the origins of parental responsibilities that can resolve such cases of disputed moral parenthood.

This paper examines a central aspect of the relations between duration and quality of life by considering the moral right to voluntary euthanasia, and some aspects of the moral case for a legal right to euthanasia. Would widespread acceptance of a right to voluntary euthanasia lead to widespread changes in attitudes to life and death? Many of its advocates deny that, seeing it as a narrow right enabling people to avoid ending their life in great pain or total dependence, or (...) a vegetative state. I argue that the right cannot cogently be conceived as a narrow right, confined to very limited circumstances. It is based on the value of having the normative power to choose the time and manner of one's death. Its recognition will be accompanied by far reaching changes in culture and attitudes, and these changes will enrich people's life by enabling them to integrate their death as part of their lives. (shrink)

What does it mean to assert or deny the existence of a legal system? How can one determine whether a given law belongs to a certain legal system? What kind of structure do these systems have, that is--what necessary relations obtain between their laws? The examination of these problems in this volume leads to a new approach to traditional jurisprudential question, though the conclusions are based on a critical appraisal, particularly those of Bentham, Austin, Kelsen, and Hart.

Positivists identify science and certainty and in the name of the utter rationality of science deny that it rests on speculative presuppositions. The Logical Positivists took a step further and tried to show such presuppositions really no presuppositions at all but rather poorly worded sentences. Rules of sentence formation, however, rest on the presuppositions about the nature of language. This makes us unable to determine the status of mathematics, which is these days particularly irksome since this question is now-since Abraham (...) Robinson-one that mathematicians cannot ignore. Since mathematics is the paradigm of a logical discourse, logic must offer a system adequate enough to serve mathematics. This fact makes it difficult to avoid making question-begging moves in both mathematics and logic. We must therefore view the rationality of logic as partial and hope it is stepwise improvable. The theory of rationality thus turns to be the major presupposition of logic, and one which has ample metaphysical background to it. The very supposition, basic to all logic, that language is divisible into form andcontent is under suspicion-mathematics perhaps belongs to neither. (shrink)

Consciousness is currently a thriving area of research in psychology and neuroscience. While this is often attributed to events that took place in the early 1990s, consciousness studies today are a continuation of research that started in the late 19th century and that continued throughout the 20th century. From the beginning, the effort built on studies of animals to reveal basic principles of brain organization and function, and of human patients to gain clues about consciousness itself. Particularly important and our (...) focus here is research in the 1950s, 1960s, and 1970s involving three groups of patients—amnesia, split brain, and blindsight. Across all three groups, a similar pattern of results was found—the patients could respond appropriately to stimuli that they denied seeing (or in the case of amnesiacs, having seen before). These studies paved the way for the current wave of research on consciousness. The field is, in fact, still grappling with the implications of the findings showing that the ability to consciously know and report the identity of a visual stimulus can be dissociated in the brain from the mechanisms that underlie the ability to behave in a meaningful way to the same stimulus. (shrink)

In his recent paper ‘Knowing What Things Look Like’, Matthew McGrath offers a challenge to the idea that knowing an object by seeing it, ‘visual objectual knowledge’ is an instance of immediate knowledge. I offer supporters of the notion of immediate visual objectual knowledge two potential strategies for blocking McGrath’s argument: either by questioning McGrath’s claim about the role that knowing what an object looks like plays in visual objectual knowledge or by denying that any explanation of how knowing what (...) an object looks like plays that role must proceed through an appeal to factual knowledge involving that object’s looks. (shrink)

Critical response to John Rawls's The Law of Peopleshas been surprisingly harsh) Most of the complaints centre on Rawls's claim that there are no obligations of distributive justice among nations. Many of Rawls's critics evidently had been hoping for a global application of the difference principle, so that wealthier nations would be bound to assign lexical priority to the development of the poorest nations, or perhaps the primary goods endowment of the poorest citizens of any nation. Their subsequent disappointment reveals (...) that, while the reception of Rawls's political philosophy has been very broad, it has not been especially deep. Rawls has very good reason for denying that there are obligations of distributive justice in an international context. (shrink)

Lakatos claimed that Popper wrote of beliefs; thus ascribing subjectivism to him Popper flatly denied this, treating it a willful distortion.1 Ironically, it is the theory of Lakatos that is subjec...

In academic philosophy and popular culture alike, pity is often framed as a virtue or the emotional underpinnings of virtue. Yet, people who are the most marginalized and, hence, most often on the receiving end of pity, assert that it is anything but an altruism. How can we explain this disconnect between an understanding of pity as a virtuous emotion versus a social harm? My paper answers this question by showing how pity is not only an emotion, but also a (...) power relation. Using the ideas of Sartre’s Anti-Semite and Jew, I explain how pity is understood as harmful by the one pitied because he is acutely aware of how it obscures his unequal power relation to the pitier and denies the pitier’s role in creating this domination. This is all done with an eye toward what I see as the quintessential class of people who are harmed by pity: people with disabilities. (shrink)

While denying that God has moral obligations, William Alston defends divine moral goodness based on God’s performance of supererogatory acts. The present article argues that an agent without obligations cannot perform supererogatory acts. Hence, divine moral goodness cannot be established on that basis. Defenses of divine moral obligation by Eleonore Stump and Nicholas Wolterstorff are also questioned. Against Stump, it is argued (among other things) that the temptations of Jesus do not establish the existence of a tendency to sin in (...) a divine being. Hence, Stump’s Christological objection to Alston’s denial of divine moral obligation fails. Some counterexamples to that denial offered by Wolterstorff also fail. It is concluded that claims of divine moral goodness remain problematic. (shrink)

Kevin Corcoran offers an account of how one can be a physicalist about human persons, deny temporal gaps in the existence of persons, and hold that there is an afterlife. I argue that Corcoran's account both violates the necessity of metaphysical identity and implausibly makes an individual's existence dependent on factors wholly extrinsic to the individual. Corcoran's defence is considered, as well as Stephen Davis's suggestions on how an account like Corcoran's can defend itself against these concerns. It is shown, (...) however, that the difficulties remain in full force and, therefore, that Corcoran's account fails to reconcile physicalism, no gappy existence, and an afterlife. (shrink)