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Numbers and Symmetry : An Introduction to Algebra, Paperback by Johnston, Bernard L.; Richman, Fred, ISBN 084930301X, ISBN-13 9780849303012, Brand New, Free P&P in the UK An undergraduate textbook that presents concrete examples before formal explanations and abstract definitions. Explains the basics of numeric groups, rings, and fields and the structures they form, and uses symmetry to provide visualizations of the central algebraic notion of isomorphism, similarities in form shown by different structures. Annotation c. by Book News, Inc., Portland, Or.
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