I derive from celestial phenomena the forces of gravity with which bodies tend to the sun and other planets.

    According to the author, these trends sought to create a unified conceptual apparatus as a common basis for the whole of human knowledge.Because these new developments in logical thought tended to perfect and sharpen the deductive method, an indispensable tool in many fields for deriving conclusions from accepted assumptions, the author decided to widen the scope of the work. In subsequent editions he revised the book to make it also a text on which to base an elementary college course in logic and the methodology of deductive sciences. It is this revised edition that is reprinted here.Part One deals with elements of logic and the deductive method, including the use of variables, sentential calculus, theory of identity, theory of classes, theory of relations and the deductive method. The Second Part covers applications of logic and methodology in constructing mathematical theories, including laws of order for numbers, laws of addition and subtraction, methodological considerations on the constructed theory, foundations of arithmetic of real numbers, and more. The author has provided numerous exercises to help students assimilate the material, which not only provides a stimulating and thought-provoking introduction to the fundamentals of logical thought, but is the perfect adjunct to courses in logic and the foundation of mathematics.

    Includes essays and excerpts from the works of prominent modern thinkers such as Umberto Eco, Jacques Derrida, and Isaiah Berlin among others.

    The memoir tells his story starting from the ambivalence he had about being drafted through the firefights and wounds he experienced in Vietnam to the estrangement he felt as he walked out of Walter Reed hospital into a civilian world not very interested in a faraway war. It also tells a tale of the commonplace courage of the twenty-year-old infantrymen of Charley Company, 5th of the 12th, 199th Light Infantry Brigade, and of the cowardice and character flaws of a Lieutenant more interested in his own glory and advancement than the well-being of his platoon. The good, the bad, and the ugly of a country and an army fighting a distant war for unclear purposes are all on display in this account focused on nine months of war in 1969.