Determine whether the relation R on the set of all real numbers is reflexive, symmetric, antisymmetric, and/or transitive, where (x, y) ∈ R if and only if a) x + y = 0. b) x = ±y. c) x − y is a rational number.
Determine whether the relation R on the set of all real numbers is reflexive, symmetric, antisymmetric, and/or transitive, where (x, y) ∈ R if and only if a) x + y = 0. b) x = ±y. c) x − y is a rational number.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.7: Relations
Problem 22E: A relation R on a nonempty set A is called asymmetric if, for x and y in A, xRy implies yRx. Which...
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Determine whether the relation R on the set of all real
numbers is reflexive, symmetric, antisymmetric, and/or
transitive, where (x, y) ∈ R if and only if
a) x + y = 0.
b) x = ±y.
c) x − y is a rational number.
d) x = 2y.
e) xy ≥ 0.
f ) xy = 0.
g) x = 1.
h) x = 1 or y = 1.
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