Let R be a ring with unity u. Prove that the units of R form a group

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Let R be a ring with unity u. Prove that the units of R form a group under the multiplication of the ring.

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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 09:09 AM

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Let R be a ring with unity u. Prove that the units of R form a group

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Let G be the set of units in R u G G 0 Also the elem...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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