Question 4. the Cartesian product Z₂ Z5 of two ([k], [m]) and Given the triple < Z₂ XZ₁, , > defined in terms of sets of congruence classes, Z₂ and Z5, under operations ([1], [n]) = ([k+1], [m+n]) ([k], [m]) ([4], [n]) = ([kl], [mn]) (a) Prove that the first distributive law holds true. (b) Hence prove that is a ring. (c) Is it a commutative ring? Justify your answer.
Question 4. the Cartesian product Z₂ Z5 of two ([k], [m]) and Given the triple < Z₂ XZ₁, , > defined in terms of sets of congruence classes, Z₂ and Z5, under operations ([1], [n]) = ([k+1], [m+n]) ([k], [m]) ([4], [n]) = ([kl], [mn]) (a) Prove that the first distributive law holds true. (b) Hence prove that is a ring. (c) Is it a commutative ring? Justify your answer.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter3: Groups
Section3.5: Isomorphisms
Problem 5E
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