For a set A, let R1 and R2 be symmetric relations on A. If R1 o R2

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For a set A, let R1 and R2 be symmetric relations on A. If R1 o R2 ⊆ R2 o R1, prove that R1 o R2 = R2 o R1.

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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 08:35 AM

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For a set A, let R1 and R2 be symmetric relations on A. If R1 o R2

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a c R 2 o R 1 for some b A a b R 2 b c R 1 With R 1 R 2 ...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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