Now in its fourth edition, this classic work clearly and concisely introduces the subject of logic and its applications. The first part of the book explains the basic concepts and principles which make up the elements of logic. The second part of the book shows the applications of logic in mathematical theory building with concrete examples that draw upon the concepts and principles presented in the first section.

Introduction by the author:
The purpose of this book, as its subtitle says, is to introduce readers to late mediaeval logic and semantic theory. By “late mediaeval,” I do not mean the really late period, at the end of the fifteenth century, say. Rather I mean the fourteenth century, primarily, and only the first half of it at that. (That is “late” in comparison with Boethius, certainly, and even in comparison with Peter of Spain and William of Sherwood a century earlier.) This is the period on which I have concentrated the bulk of my research, so naturally it’s the period I’m best in a position
to talk about. Nevertheless, to give the reader a running start, I have included a kind of overview in Ch. 2, below, of the history of logic up to the end of the Middle Ages, including the periods before and after the time we will be mainly focusing on.

This is more than an economics book it is a way of life. It sounds good on paper but makes a lot of assumptions. Instead of worrying about workability, look at the logic that is built on assumptions of that time (written, in 1848). Add this to your library.

Whether regarded as a science, an art, or a skill–and it can properly be regarded as all three–logic is the basis of our ability to think, analyze, argue, and communicate. Indeed, logic goes to the very core of what we mean by human intelligence. In this concise, crisply readable book, distinguished professor D. Q. McInerny offers an indispensable guide to using logic to advantage in everyday life. Written explicitly for the layperson, McInerny’s Being Logical promises to take its place beside Strunk and White’s The Elements of Style as a classic of lucid, invaluable advice.

You can learn to solve those tricky LSAT logic games and we can teach you how to do it. This easy-to-follow guide will show you how to work through every game type, how to diagram logical relationships, and how to use targeted tools to answer questions quickly and easily. Every problem-solving technique in this book has been developed and refined by law school students who aced the LSAT. Whatever the game type, you'll learn the techniques you need to solve the most complex logic problems. find the correct answers, and raise your LSAT score.