All rings are commutative, and k is an algebraically closed field. 1. Let R= k(x1,...,xn]. Verify the following statements. (a) Let {Ia} be a collection of ideals in R. Show that . V(Ia) = V(UaIa). (b) Let I, JC R be ideals. Show that V(IJ) = V(I)UV(J). %3D

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.4: Ordered Integral Domains
Problem 1E: Complete the proof of Theorem 5.30 by providing the following statements, where and are arbitrary...
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All rings are commutative, and k is an algebraically closed field.
1. Let R = k[x1,...,x,). Verify the following statements.
(a) Let {Ia} be a collection
ideals in R. Show that Na V(Ia) = V(Uala).
(b) Let I, J CR be ideals. Show that V(IJ) = V(I) UV(J).
2. Let J C k[x1,...,xn] be an ideal and X and Y algebraic sets. Verify the following
statements.
(a) V(I(V(J))) = V(J).
(b) I(V(I(X))) = I(X).
(c) X = Y if and only if I(X) = I(Y).
Transcribed Image Text:All rings are commutative, and k is an algebraically closed field. 1. Let R = k[x1,...,x,). Verify the following statements. (a) Let {Ia} be a collection ideals in R. Show that Na V(Ia) = V(Uala). (b) Let I, J CR be ideals. Show that V(IJ) = V(I) UV(J). 2. Let J C k[x1,...,xn] be an ideal and X and Y algebraic sets. Verify the following statements. (a) V(I(V(J))) = V(J). (b) I(V(I(X))) = I(X). (c) X = Y if and only if I(X) = I(Y).
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