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One of the most careful and intensive among the introductory texts that can be used with a wide range of students. It builds remarkably sophisticated technical skills, a good sense of the nature of a formal system, and a solid and extensive background for more advanced work in logic. . . . The emphasis throughout is on natural deduction derivations, and the text's deductive systems are its greatest strength. Lemmon's unusual procedure of presenting derivations before truth tables is very effective. --Sarah Stebbins, The Journal of Symbolic Logic
This is really an awful book. The advantages are that it's relatively cheap and light, the disadvantages are everything else. Read morePublished on February 21, 2012 by Michigoon
This is an older book, so it is a little wordy. The wording of explanations for rules is a bit strange, but its okay because Lemmon follows all explanations with examples.Published on February 22, 2011 by RandieB
I have got to admit, this is a very difficult book to follow. It is higher order logic--very difficult material for most people to grasp--hard for me and I tutored it. Read morePublished on December 31, 2008 by Jackie Barton
Okay. This book is cheap which is nice. BUT it is NOT HELPFUL. Even for someone with a background in logic this book is worthless, but especially for a beginner. Read morePublished on August 10, 2008 by QuixoticOther
For those who are interested in learning the basics of propositional calculus, this is a fantastic book. Read morePublished on February 17, 2007 by Megan Dyer