Product Description Kurt Godel was one of the most outstanding logicians of the twentieth century, famous for his work on the completeness of logic, the incompleteness of number theory, and the consistency of the axiom of choice and the continuum hypothesis. He is also noted for his work on constructivity, thedecision problem, and the foundations of computation theory, as well as for the strong individuality of his writings on the philosophy of mathematics. He is less well known for his discovery of unusual cosmological models for Einstein's equations, in theory, permitting time travel into the past.These books are the fourth and fifth part of a five-volume set, which is the first to make available all of Godel's writings in the one place. The first three volumes have received acclaim, and consist of the papers and essays of Godel. The final two volumes of the set deal with Godel'scorrespondence with his contemporary mathematicians. The fourth volume consists of material from correspondents from A-G, with explanatory and introductory material. The final volume consists of the remaining correspondence from H-Z. The Collected Works of Kurt Godel is designed to be useful andaccessible to a wide audience without sacrificing scientific or historical accuracy. They are the only complete editions available in English, and are essential to students and professionals in logic, mathematics, philosophy, history of science and computer science as well as those curious aboutone of the great minds of the twentieth century. About the Author Solomon Feferman is at Stanford University. John Dawson is at Pennsylvania State University. Warren Goldfarb and Charles Parsons are both at Harvard University.