Randall Dipert

(1951 - 2019)

This is an extensive and diffuse collection of essays woven together by a number of leitmotifs. It is a work by a technically virtuosic professional philosopher for readers with the same credentials; even many of the complicated examples use extensive insider information about the institution of professional analytic philosophy in the last half of the twentieth century in the United States. In the sequence of its chapters, we see a development that in some ways mirrors Castañeda's philosophical career and topics of active thought. Namely, Part 1 of the book, embracing 4 chapters, is devoted to linguistic phenomena--broadly to issues of reference, but with special attention to indexicals and what Castaneda has called "quasi-indexicals." It reads very difficultly for anyone not steeped in recent issues in the philosophy of language. Many elements of this work, might seem at first a rather slender basis on which to found a broader philosophy of mind, experience, and the world in the tradition of modern philosophy. But this is precisely what Castaneda has done in his career and in this volume. His earlier analyses of complex referential phenomena form the unlikely springboard for far-flung reflections in epistemology, phenomenology, metaphysics, and, especially, the philosophy of mind.

I do not think that previous writing on artifacts has been satisfactory, for reasons that will become clear. This situation has only been slightly remedied, I believe, by works such as my Artifacts, Agency, and Art Works, Dipert, sometimes referred to here as “AAA.” At the same time, I believe that a general notion of artifact is crucial for philosophy: the concept of an artifact is a central piece of our conception of the world. One of the important projects in the theory of artifacts that is incomplete, or perhaps has not yet even been seriously undertaken, is a definition of artifacts. To give a definition of artifact, and to explore its difficulties and entanglements, is the central organizing goal of this essay.

This essay makes three claims about preventive war, which is demarcated from preemptive war and is part of a broader class of ?anticipatory? wars. Anticipatory wars, but especially preventive war, are ?hard cases? for traditional Just War theory; other puzzles for this tradition include nuclear deterrence, humanitarian intervention, and provability a priori of the success of Tit-for-Tat. First, and despite strong assertions to the contrary, it is far from clear that preventive war is absolutely prohibited in traditional Just War Theory, and it is also dubious that it is in all cases ?clearly illegal?. Second, the morality of both preemptive and preventive wars is shown to turn on epistemological considerations: on what degree and kind of justification the primary metaphysical facts of threat can be reasonably believed. Third, an argument is made that whatever epistemic threshold is held to be necessary, some preventive wars will exceed it, and that this is more likely with advancing technologies of information acquisition. Finally, the common argument that allowing all nations to follow policies of preventive war would result in more wars than barring such policies is shown to be mistaken by simulations in game theory. Suggestions are made about the derivation of traditional Just War criteria from more basic moral principles, and about their subtle failures as jointly necessary conditions for the morality of war

BEFORE Frege’s Begriffsschrift, propositional logic was submerged in the often murky theory of the "hypothetical syllogism." With the exception of the Stoa, a handful of astute mediaeval logicians, Leibniz, and Bolzano, one might well obtain the impression from studying the history of logic that Frege created his theory ex nihilo—which is substantially true, since Frege was apparently little influenced by previous work. One might also obtain the impression, especially by reading Frege himself, that very little was being done on propositional logic in the 19th century. This claim would be false. As one might expect from a philosopher who is sometimes grouped with Frege and De Morgan as one of the greatest nineteenth century logicians, Charles S. Peirce dealt extensively with propositional logic, or as he would have called it, with the theory of the hypothetical syllogism.