Heimir Geirsson

One reason for the recent attention to conceivability claims is to be found in the extended use of conceivability in philosophy of mind, and then especially in connection with zombie thought experiments. The idea is that zombies are conceivable; beings that look like us and behave like us in all ways, but for which “all is dark inside;” that is, for a zombie, there is no “what it is like.” There is no “what it is like” to be a zombie, there is no “what it is like” for a zombie to feel pain, there is no “what it is like” for a zombie to taste, or feel, or smell something. They are creatures without consciousness. I am skeptical about the conceivability of zombies. That is not to say that I believe that there is some inherent contradiction to be found in the idea of zombies. Instead, I do not think that I am justified in believing that zombies are conceivable. The focus on justification is not common in the literature on conceivability, or for that matter in the literature on the possibility of zombies. Instead, the focus tends to be on trying to find out whether or not the notion of a zombie is contradictory. It is widely accepted in the literature on conceivability that the absence of a contradiction when conceiving of X is both necessary and sufficient for X to be conceivable. That might be true of ideal conceivability, but as I will argue below, ideal conceivability is not relevant to our (human) pursuit of knowledge and understanding. Further, as I will argue, once we focus on non-ideal conceivability the notion of justification, and degrees of justification comes into play

Recently there has been a surge of new Fregeans who claim that the direct designation theory, as understood by contemporary Russellians, does not, and cannot, account for the different cognitive significance of statements containing different but codesignative names or indexicals. Instead, they say we must use a fine grained notion of propositions; one which builds a mode of presentation into proposition in addition to including in them the object referred to by the name or indexical in the sentence expressing the proposition. Thus we have Mark Richard, John Perry, and Mark Crimmins championing theories that build the mode of presentation into propositions, making the mode of presentation affect the truth conditions of belief reports. What is interesting, though, is that all three accept the direct designationalists claim that proper names, indexicals, and demonstratives are directly referential.I present four problems for the direct designation theorists and argue that the problem the new Fregeans use to motivate their move to include cognitive significance in propositions is the least basic of the four problems. I then provide an account of beliefs of singular propositions which does not require us to build modes of presentations into propositions and which solves the problems posed for the direct designation theory.

Mark Timmons and Terry Horgan have argued that the new moral realism, which rests on the causal theory of reference, is untenable. While I do agree that the new moral realism is untenable, I do not think that Timmons and Horgan have succeeded in showing that it is. I will lay out the case for new moral realism and Horgan and Timmons’ argument against it, and then argue that their argument fails. Further, I will discuss Boyd’s semantic theory as well as attempts to improve upon it, raise serious problems for these semantic accounts, and suggest an alternative view that accounts for our use of moral terms.

This anthology is designed for use as a brief introduction to ethical theory. Included are sections on various forms of ethical theory: Ethical Relativism; Divine Command Theory; Egoism; Consequentialism; Deontology; Justice; Virtue Ethics; Feminist Ethics; and, new to the second edition, Pluralism. Each section includes two or three of the most important and interesting contributions to the field, together with brief introductions by the editors. The second edition contains an improved approach to applied ethics. Whereas in the first edition the authors included a chapter at the end of the book that contained selections that dealt with moral problems, in the second edition they have dropped that chapter in favour of an approach that ties moral issues more closely to the moral theories. Each chapter on moral theories now includes a selection that deals with a moral problem, such as human cloning, abortion, and global warming. The selection illustrates how the relevant theoretical approach is put to use. There is therefore a much tighter integration between theory and practice than before. The new structural approach should make the book significantly more effective in the classroom. The new edition also contains an improved section on feminist ethical theory.

Plantinga grants that there are possible worlds with freedom and no moral evil, but he argues that it is possible that although God is omnipotent, it is not within God’s power to actualize a world containing freedom and no moral evil. Plantinga believes that the atheologian assumes that it is necessary that it is within an omnipotent God’s power to actualize these better worlds, but in fact, Plantinga argues, this is demonstrably not the case. Since so many philosophers have regarded Plantinga’s Free Will Defense to be a definitive solution to the logical problem of evil, the focus of the debate of the problem of evil has changed from the logical problem of evil to the evidential problem of evil. But we believe that the atheist tossed in the towel too early, and the theist celebrated victory too early. We will argue that Plantinga’s argument does not succeed. Mackie, incidentally, thought the same. He wrote “But how could there be logically contingent states of affairs, prior to the creation and existence of any created beings with free will, which an omnipotent god would have to accept and put up with? This suggestion is simply incoherent.” In this essay we argue that Plantinga fails to demonstrate that it is possible that God is omnipotent, and it is not within God’s power to actualize a world containing freedom but lacking moral evil. Thus Plantinga does not refute Mackie’s response to the Free Will Defense, and the point of Mackie’s question “Why could God not have made men such that they always freely choose the good?” still stands unrefuted.

The general topic of this work is the information value of declarative sentences containing proper names. I begin by accepting the direct designation theory of names. The theory, however, does not appear to be able to account for the difference in information value between sentences like 'Hesperus is Phosphorus' and 'Hesperus is Hesperus'. In order to explain this difference I develop an account of belief that takes a novel approach to the contents of beliefs of propositions expressed by such sentences. ;If you have a de re attitude towards a proposition, you can believe it in several different ways. The difference corresponds to the various ways in which you can mentally represent the object in the proposition. I account for this difference by introducing a distinction between the information basis of a sentence, which is the proposition expressed by the sentence, and the information value of the sentence, which is a subjective notion that depends on how one understands the sentence. ;The implication of the theory on the relationship between the necessary and the a priori is significant. I agree with Kripke that true identity statements containing different codesignative names express necessary propositions, but we disagree on the epistemic status of those propositions. While he argues that they can be known only a posteriori, I argue that they also can be known a priori. Regarding sentences like 'stick S is one meter long', I disagree with Kripke, and argue that although we cannot know this a priori, there is a closely related sentence that qualifies as an example of the contingent a priori, namely 'the length S appears to have is one meter'