Let A be nonempty set, and P(A) be the power set of A. Recall the definition Problem 2. of power set: P(A) = {r | x C A}. Show that symmetric deference operation on P(A) define by the formula x ® y = (x N y°) U (yna°), x € P(A), y E P(A), (where ye is the complement of y) the following statements are true: 1. The algebraic operation O is commutative and associative on P(A). Solution. 2. Show that for the operation e there exists an identity element. Solution. 3. Find all invertible elements Solution.
Let A be nonempty set, and P(A) be the power set of A. Recall the definition Problem 2. of power set: P(A) = {r | x C A}. Show that symmetric deference operation on P(A) define by the formula x ® y = (x N y°) U (yna°), x € P(A), y E P(A), (where ye is the complement of y) the following statements are true: 1. The algebraic operation O is commutative and associative on P(A). Solution. 2. Show that for the operation e there exists an identity element. Solution. 3. Find all invertible elements Solution.
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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