3. Ir X = {a,b, c, d,e, f} and T is the discrete topology on X, which of the following statements are true? (b) {X} € T; (f) {Ø} € X; U) {a} € X; (c) {O} € T; (a) X € T; (e) Ø E X; (1) Ø C X; (9) {a} € T; (k) {Ø} C X; (d) Ø € T; (h) a E T; (1) a € X; (n) {a} CT; (Hint. Precisely six of the above are true.) (0) {X} CT; (m) X C T; (p) a C T.
3. Ir X = {a,b, c, d,e, f} and T is the discrete topology on X, which of the following statements are true? (b) {X} € T; (f) {Ø} € X; U) {a} € X; (c) {O} € T; (a) X € T; (e) Ø E X; (1) Ø C X; (9) {a} € T; (k) {Ø} C X; (d) Ø € T; (h) a E T; (1) a € X; (n) {a} CT; (Hint. Precisely six of the above are true.) (0) {X} CT; (m) X C T; (p) a C T.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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