Hw2 questions

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Unformatted text preview: 2. 3. 4. 5. Suppose that f : X → Y is a function and that A and B are subsets of X. Prove that a. f ( A ∪ B) = f ( A ) ∪ f ( B ) , and that b. f ( A ∩ B) ⊆ f ( A ) ∩ f ( B ) . Show that strict (ie non- equal) inclusion can occur for part b. Denote by F(X , Y) the set of all functions from X to Y. For sets A, B, and C prove that a. F(C , A × B) is in one- to-...
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This document was uploaded on 02/22/2014 for the course CS 2800 at Cornell University (Engineering School).

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