We think that Kripke’s arguments that there are contingent a priori truths and that there are necessary a posteriori truths about named and essentially described entities fail. They fail for the reasons that there are ambiguities in each of the three eases. In the first ease, what is known apriori is not what is contingent. In the latter two cases, what is necessary or essential is not what is known a posteriori.

We think that Kripke’s arguments that there are contingent a priori truths and that there are necessary a posteriori truths about named and essentially described entities fail. They fail for the reasons that there are ambiguities in each of the three eases. In the first ease, what is known apriori is not what is contingent. In the latter two cases, what is necessary or essential is not what is known a posteriori.

In his Enquiry Concerning Human Understanding, Section 4, “Sceptical Doubts concerning the Operations of the Understanding,” Hume offers three conceptual arguments against causes necessitating their effects. These are a difference argument, a logical, or relations of ideas, argument, and a factual argument. I contend that the logical argument rests on the difference argument, and that the factual argument, when seen for what it is, is simply the difference argument. In effect the three arguments reduce to one.

In his Enquiry Concerning Human Understanding, Section 4, “Sceptical Doubts concerning the Operations of the Understanding,” Hume offers three conceptual arguments against causes necessitating their effects. These are a difference argument, a logical, or relations of ideas, argument, and a factual argument. I contend that the logical argument rests on the difference argument, and that the factual argument, when seen for what it is, is simply the difference argument. In effect the three arguments reduce to one.

In Sameness and Substance David Wiggins bas indicated difficulties with individuating objects. By confining attention to material objects, I show how spatio-temporal features will do the job for them. I construct the explanation by examining how we coordinate sensations of several senses to produce an apprehension of the three spatial dimensions. I also search out grounds for distinguishing between apprehensions of objects and apprehension of the space in which they reside. Several necessary truths that apply are also distinguished from each (...) other, and from the basic process, which is not itself necessary. (shrink)

In Sameness and Substance David Wiggins bas indicated difficulties with individuating objects. By confining attention to material objects, I show how spatio-temporal features will do the job for them. I construct the explanation by examining how we coordinate sensations of several senses to produce an apprehension of the three spatial dimensions. I also search out grounds for distinguishing between apprehensions of objects and apprehension of the space in which they reside. Several necessary truths that apply are also distinguished from each (...) other, and from the basic process, which is not itself necessary. (shrink)

In his book Ethics J. L. Mackie says that moral facts would have to be queer facts. I argue that an act’s hurting somebody is necessarily a reason, though not necessarily a conclusive reason, not to do that act; and that such hurting is a natural fact, not a queer fact. I try to defend this externalist position about this particular reason against internalists such as Mackie, and in particular against the position of Stephen Darwall in Impartial Reason.

In his book Ethics J. L. Mackie says that moral facts would have to be queer facts. I argue that an act’s hurting somebody is necessarily a reason, though not necessarily a conclusive reason, not to do that act; and that such hurting is a natural fact, not a queer fact. I try to defend this externalist position about this particular reason against internalists such as Mackie, and in particular against the position of Stephen Darwall in Impartial Reason.

This paper argues that Plato’s “what-is-T” questions offer a more instructive method for introducing students to philosophy than his use of the Allegory of the Cave. In supporting this claim, the paper presents a Socratic dialogue that illustrates how what-is-T questions along with an answer to said questions via a list (a list-of-T's) can be used as a starting point for introducing philosophy. However, this Socratic dialogue also reveals that this initial answer cannot succeed and so it motivates Plato’s preferred (...) answer which involves defining T by giving its essential characteristics. In addition to providing a summary of this dialogue, the paper responds to the objection that introducing philosophy to students in this way is too challenging for beginning students. (shrink)