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Title: Obscure logical system, that complicates logic.
Review: This book is a logical primer for use with a teacher. If the teacher is inadequate, the understanding of logic is as well. Also, the system is overly complicated, and the long established rules have been thrown out, and replaced by new versions, with new names. Learning by this system will likely cause students to be stymied by more advanced logical pursuits that are based on traditional logic systems, as they will have to learn the traditional system anyway. For this reason, Lemmon's logical system is suitable only as an example of how NOT to teach logic.
