Bergmann M., Moor J. The Logic Book 6ed 2014

Textbook in PDF format

The Logic Book is a leading text for symbolic logic courses that presents all concepts and techniques with clear, comprehensive explanations. There is a wealth of carefully constructed examples throughout the text, and its flexible organization places materials within largely self-contained chapters that allow instructors the freedom to cover the topics they want, in the order they choose.
About the Author
Merrie Bergmann received her Ph.D. in philosophy from the University of Toronto and is currently an Associate Professor in the Computer Science Department at Smith College. She has published articles in formal semantics and logic, philosophy of language, and computational linguistics.
James Moor received his Ph.D. in history and philosophy of science from Indiana University and is currently a Professor of Philosophy at Dartmouth College. He has developed software for teaching logic and has published articles in philosophy of science, philosophy of mind, logic, philosophy of artificial intelligence, and computer ethics.
Jack Nelson received his Ph.D. in philosophy from the University of Chicago and is currently Associate Dean of the College of Liberal Arts and Sciences and the Interim Chair of the Philosophy Department at Arizona State University. He has developed software for teaching logic and has published articles in personal identity, epistemology, and philosophy of science