Let /: R XR^Zbe the closed binary operation defined by f(a,b) = [a + b]. (a) Is

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Let /: R XR^Zbe the closed binary operation defined by f(a,b) = [a + b]. (a) Is f commutative? (b) Is f associative? (c) Does f have an identity element?

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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 08:23 AM

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Let /: R XR^Zbe the closed binary operation defined by f(a,b) = [a + b]. (a) Is

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a For all a b R fa b a b b a fb a because the real numbers are commutative under addition He...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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