1. Let A= {x, y, z} (a) If possible, give an example of a subset of P(A) with cardinality 4. (b) If possible, give an example of a element of P(A) with cardinality 4. (c) Does there exist a function f :A-P(A) which is 1- 1? If such function exist give an example, if no such function exists, explain why.
1. Let A= {x, y, z} (a) If possible, give an example of a subset of P(A) with cardinality 4. (b) If possible, give an example of a element of P(A) with cardinality 4. (c) Does there exist a function f :A-P(A) which is 1- 1? If such function exist give an example, if no such function exists, explain why.
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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Transcribed Image Text:1. Let \( A = \{ x, y, z \} \)
(a) If possible, give an example of a subset of \(\mathcal{P}(A)\) with cardinality 4.
(b) If possible, give an example of an element of \(\mathcal{P}(A)\) with cardinality 4.
(c) Does there exist a function \( f : A \rightarrow \mathcal{P}(A) \) which is 1-1? If such a function exists, give an example; if no such function exists, explain why.
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