LOGICA UNIVERSALIS SPECIAL ISSUE JEAN VAN HEIJENOORT CENTENARY edited by Irving H. Anellis Indiana University-Purdue University at Indianapolis Jean van Heijenoort 19121986 23 July 2012 marks the centenary of the birth of historian and philosopher of logic Jean van Heijenoort, whose anthology From Frege to Goedel helped define the nature and scope of modern mathematical logic for several generations of logicians and the canon of fundamental works that comprise the text for the formative period of mathematical logic as we know it today. His influence in the history of mathematical logic was furthered by his work as the editor of the papers of Jacques Herbrand and in his contributions to the publication of the multi-volume Collected Works of Kurt Gdel. The articles, published and unpublished, that were brought together in his Selected Essays articulated his conception of the course of the origin and development of mathematical logic. His El dessarollo de la teoria de la cuantificacion provided an exposition of the "family of formal systems" that comprise quantification theory and its proof procedures: the axiomatic method, itself comprised of Frege-type systems and Hilbert-type systems; Herbrand quantification; natural deduction; and the Gentzen sequent calculus, which van Heijenoort enumerated as the four principal approaches to first-order predicate calculus. He briefly examined the history of each and considered them in their classical, intuitionistic, and minimal versions and compared the strengths and weaknesses of each. As editor of From Frege to Goedel, van Heijenoort exercised a critical influence on the historiography of logic through much of the second half of the twentieth century. Although aspects of his views on the nature and scope of mathematical logic have more recently been challenged, as have aspects of his conception of the history of mathematical logic, his ideas remain of continuing influence among historians and philosophers of logic and frequently serve as the starting point in discussions which challenge his views, for example, his often exaggerated emphasis on the pivotal work of Gottlob Frege and corresponding comparative neglect of the contributions of Frege's contemporaries among the algebraic logicians, and in particular of Charles Sanders Peirce and Ernst Schrder. Thus van Heijenoort's work continues to occupy a significant place in the historiography and philosophy of logic. In addition to his historical work, van Heijenoort left a body of manuscripts and typescripts, many of which were distributed to a handful of close colleagues and to his Brandeis University logic students, and in which he explored the model-theoretic properties of the falsifiability tree method, particularly its soundness and completeness, and the relation between the truth tree and falsifiability tree methods and its ancestors, in particular Herbrand quantification and Beth tableaux. In his Introduction a la smantique des logiques non-classiques, van Heijenoort applied the tree method to intuitionistic and modal logic. We invite contributions to the special issue of Logica Universalis devoted to any and all aspects of van Heijenoort?s work in logic, its history and philosophy. Contributions for consideration should be sent in PDF to the guest editor Irving H. Anellis at ianellis@iupui.edu. Publication schedule: Initial submission: 31 January 2012 Preview copy: 31 March 2012 Final copy: 31 May 2012 Publication target date: 23 July 2012 Sincerely, Irving H. Anellis Visiting Research Associate Peirce Edition, Institute for American Thought 902 W. New York St. Indiana University-Purdue University at Indianapolis Indianapolis, IN 46202-5159 USA URL: http://www.irvinganellis.info