A ring R is called Boolean if a2 = a for all a R. If R

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A ring R is called Boolean if a2 = a for all a ∈ R. If R is Boolean, prove that (a) a + a = 2a = z, for all a ∈ R ', and (b) R is commutative.

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Discrete and Combinatorial Mathematics An Applied Introduction

ISBN: 978-0201726343

5th edition

Authors: Ralph P. Grimaldi

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Question Posted: Jun 21, 2016 09:03 AM

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A ring R is called Boolean if a2 = a for all a R. If R

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Discrete and Combinatorial Mathematics An Applied Introduction

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