(1) prove that the relation is an equivalence
Chapter 8, Problem 25E(choose chapter or problem)
Problem 25E
(1) prove that the relation is an equivalence relation, and (2) describe the distinct equivalence classes of each relation.
Exercise
A is the “absolute value” relation defined on R as follows:
For all x, y ∈ R, x Ay ⇔ |x | = |y|.
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