Hurley, Patrick J., 1942- A concise introduction to logic / Logic Patrick J. Hurley, University of San Diego, Lori Watson, University of San Diego. - Thirteenth edition. - Boston, MA : Cengage Learning, [2018]. - xxiv, 728 p. : ill. ; 24 cm Includes index. ISBN: 9781305958098 (student edition) 9781305959767 (looseleaf edition) LCCN: 2016941673 Subjects--Topical Terms: Logic. Subjects--Index Terms: ფილოსოფია ლოგიკა ინდუქციური ლოგიკა LC Class. No.: BC108 / .H83 2018 Universal Decimal Class. No.: 16