Isaac Levi

(1930 - 2018)

Richard Rorty sings in the antifoundationalist chorus. His song equates the rise of foundationalist epistemology with the professionalization of philosophy. The discordant notes he finds in the foundationalist score become, as a consequence, subversive of philosophy as an autonomous discipline.Nonetheless, the most salient feature of Rorty's recent book, Philosophy and the Mirror of Nature, is that it is by a professional philosopher, for professional philosophers and about the future of philosophy as a profession. The early chapters of the book are polished pieces of professional philosophical prose addressed to issues which have provoked interest in recent years among members of academic philosophy departments. They represent efforts to undermine foundationalist epistemology even in some of its currently fashionable guises as philosophy of language.

This is a collection of Isaac Levi's philosophical papers. Over the period represented by the work here, Professor Levi has developed an interrelated set of views, in the tradition of Peirce and Dewey, on epistemology and the philosophy of science and social science. This focus has been on the problem of induction and the growth of knowledge, the foundations of probability and the theory of rational decision-making. His most important essays in these areas are assembled here, with an introduction setting out their main themes and connections. As a whole the volume presents a coherent, elaborated position which will be of great interest to a range of philosophers, decision theorists, welfare and social choice theorists and cognitive scientists.

A comparison is made between the criterion of choice of E-admissibility I proposed in Levi, 1974 and elaborated in Levi, 1980 and 1986, and the ideas about norms elaborated by Alchourrón and Bulygin with an emphasis on the fact that choice cannot always be evaluated in terms of binary comparisons as the distinction between second worst and not second worst illustrates. Se establece una comparación entre el criterio de E-admisibilidad propuesto en Levi,1974 y elaborado en Levi,1980 y 1986 y las ideas sobre normas elaboradas por Alchourrón y Bulygin enfatizando el hecho de que una elección no puede siempre ser evaluada en términos de comparaciones binarias como lo ilustra la distinción entre "second worst" y "not second worst"

There are two uses of randomization in efforts to control systematic bias in experimental design: (a) Alchemical uses seek to convert unavoidable systematic errors into random errors. (b) Hygienic uses seek to reduce the prospect of the experimenter's involvement with the implementation of the experiment contributing to bias. A few remarks are made at the end of the paper about the hygienic use of randomization as a preventative against sticky fingers. The bulk of the discussion addresses the alchemical applications. The thesis is that attitudes towards the cogency of Fisher's alchemical use of randomization ought to depend on views concerning statistical deduction or direct inference.