Peter Milne

Drawing on recently published correspondence as well as on a survey of Polish and international philosophical activity published in 1937 and details concerning the publisher and bookseller Aleksander Mazzucato, I provide evidence that, contrary to some recent assertions (but in line with older bibliographical entries), Tarski's ‘Der Wahrheitsbegriff in den formalisierten Sprachen’ was not published in journal form until 1936, although preprints, lacking two corrections and a small addendum, were likely available in the late months of 1935.

The visual arts operated as a touchstone for French philosopher Jean-François Lyotard, influencing his thinking on everything from epistemology to politics. Building on the recent publication of a bilingual, six-volume edition of his writings on contemporary art and artists, this special issue of_ Cultural Politics_ provides a focus on Lyotard’s aesthetics. The issue includes a review of Lyotard’s writings on art, a discussion of his early figural aesthetics, and an essay on Lyotard’s little-known work, _Pacific Wall_, as well as two essays on Lyotard and music. Two previously untranslated works by Lyotard himself are also featured: the influential article “Argumentation and Presentation: The Crisis of Foundations” and the interview “What to Paint?,” given at the time of the publication of the book of the same name. Painter Leon Phillips, whose work embodies many of the attributes of painting that were most important to Lyotard, is the featured artist for the issue. Throughout, the contributors argue for the primary importance of aesthetics in understanding Lyotard’s thought. Peter W. Milne is Assistant Professor in the Department of Aesthetics at Seoul National University

According to the axiologist the value concepts are basic and the deontic concepts are derivative. This paper addresses two fundamental problems that arise for the axiologist. Firstly, what ought the axiologist o understand by the value of an act? Second, what are the prospects in principle for an axiological representation of moral theories. Can the deontic concepts of any coherent moral theory be represented by an agent-netural axiology: (1) whatever structure those concepts have and (2) whatever the causal structure of the world happens to be. We show that the answer is "almost always". The only substantive constraint is that autonomous moral agents cannot have the power to simultaneously block the options open to other autonomous moral agents. But this seems to be part and parcel of the notion of an autonomous moral agent.

This takes a little-known reading of Kafka’s “In the Penal Colony” by Lyotard as the starting point for an examination of the relation between body and law. Lyotard’s late notion of the intractable serves as a frame for this examination: explicitly claimed to be an absolute condition of morals, I argue it also has political implications, which are here drawn out through the link between the intractable and the body. In Lyotard’s later writings, the body is usually associated with an originary affectivity, which is sometimes equated with sexual difference but sometimes appears to come “before” and exceed this law of bodily differences. It is the latter case, I argue, that allows for a path to be opened beyond the bodily violence of the law to be found in Kafka, especially if this is framed in terms of a certain “politics of incommensurability.”

There are distinctive methodological and conceptual challenges in rare and severe event (RSE) forecast verification, that is, in the assessment of the quality of forecasts of rare but severe natural hazards such as avalanches, landslides or tornadoes. While some of these challenges have been discussed since the inception of the discipline in the 1880s, there is no consensus about how to assess RSE forecasts. This article offers a comprehensive and critical overview of the many different measures used to capture the quality of categorical, binary RSE forecasts – forecasts of occurrence and non-occurrence – and argues that of skill scores in the literature there is only one adequate for RSE forecasting. We do so by first focusing on the relationship between accuracy and skill and showing why skill is more important than accuracy in the case of RSE forecast verification. We then motivate three adequacy constraints for a measure of skill in RSE forecasting. We argue that of skill scores in the literature only the Peirce skill score meets all three constraints. We then outline how our theoretical investigation has important practical implications for avalanche forecasting, basing our discussion on a study in avalanche forecast verification using the nearest-neighbour method (Heierli et al., 2004). Lastly, we raise what we call the “scope challenge”; this affects all forms of RSE forecasting and highlights how and why working with the right measure of skill is important not only for local binary RSE forecasts but also for the assessment of different diagnostic tests widely used in avalanche risk management and related operations, including the design of methods to assess the quality of regional multi-categorical avalanche forecasts.

This paper responds to Rancière’s reading of Lyotard’s analysis of the sublime by attempting to articulate what Lyotard would call a “differend” between the two. Sketching out Rancière’s criticisms, I show that Lyotard’s analysis of the Kantian sublime is more defensible than Rancière claims. I then provide an alternative reading, one that frees Lyotard’s sublime from Rancière’s central accusation that it signals nothing more than the mind’s perpetual enslavement to the law of the Other. Reading the sublime through the figure of the “event,” I end by suggesting that it may even have certain affinities with what Rancière calls “politics.”

Some propositions add more information to bodies of propositions than do others. We start with intuitive considerations on qualitative comparisons of information added . Central to these are considerations bearing on conjunctions and on negations. We find that we can discern two distinct, incompatible, notions of information added. From the comparative notions we pass to quantitative measurement of information added. In this we borrow heavily from the literature on quantitative representations of qualitative, comparative conditional probability. We look at two ways to obtain a quantitative conception of information added. One, the most direct, mirrors Bernard Koopman’s construction of conditional probability: by making a strong structural assumption, it leads to a measure that is, transparently, some function of a function P which is, formally, an assignment of conditional probability (in fact, a Popper function). P reverses the information added order and mislocates the natural zero of the scale so some transformation of this scale is needed but the derivation of P falls out so readily that no particular transformation suggests itself. The Cox–Good–Aczél method assumes the existence of a quantitative measure matching the qualitative relation, and builds on the structural constraints to obtain a measure of information that can be rescaled as, formally, an assignment of conditional probability. A classical result of Cantor’s, subsequently strengthened by Debreu, goes some way towards justifying the assumption of the existence of a quantitative scale. What the two approaches give us is a pointer towards a novel interpretation of probability as a rescaling of a measure of information added