Toomas Karmo claims that his taxonomy of ethical sentences has the result that there does not exist a sound argument with all non-ethical premises and an ethical conclusion. In a recent paper, Mark T. Nelson argues against this claim. Nelson presents a sound argument that he takes to be such that (i) Karmo’s taxonomy classifies that argument’s single premise as non-ethical and (ii) Karmo’s taxonomy classifies that argument’s conclusion as ethical. I attempt to show that Nelson is mistaken about (ii). (...) For any possible world at which the premise of Nelson’s argument is true, Karmo’s taxonomy classifies the conclusion of Nelson’s argument as non-ethical. (shrink)

In his paper, How to Derive ‘Ought’ From ‘Is,’ John R. Searle made a valiant attempt to derive an ought-statement from purely descriptive statements. In a recent issue of Philosophia, Scott Hill has offered criticisms of that proposed derivation. I argue that Hill has not established any errors in Searle's proposed derivation.

This article is concerned with the interconnection between three arguments: the Moral Explanatory Dispensability Argument, the Epistemic Explanatory Dispensability Argument, and the Companions in Guilt Argument. Silvan Wittwer has recently argued that the Epistemic EDA is self-effacing, whereas the Moral EDA is not. This difference between them is then leveraged by Wittwer to establish that there is a significant disparity between these arguments and that this disparity undermines attempts to use the CGA as a means of refuting the Moral EDA. (...) After explaining the connections between these arguments, I provide three different responses to Wittwer’s analysis. First, I develop a plausible case in favor of the conclusion that the Moral EDA is also self-effacing. Second, I defend the Epistemic EDA from the charge of self-effacement and respond to Wittwer’s assertion that my preferred method of escaping his argument is dialectically inappropriate. Finally, I explain how some arguments recently articulated by Richard Rowland and Ramon Das support my objections to Wittwer’s self-effacement argument. (shrink)