4. Let F : A --> B, g : B --> C, and h : B --> C be functions, and suppose that f is onto. Prove or disprove the following statement: If g (f) = h (f) then g = h 4a. Prove that for any natural number n > 3, at least one for the three numbers n, n+2, n+4 is not prime. (for example, if n = 7, the numbers are 7, 9, 11, and 9 is not prime. If n =21, the numbers are 21, 23, 25, and both 21 and 25 are not prime)
4. Let F : A --> B, g : B --> C, and h : B --> C be functions, and suppose that f is onto. Prove or disprove the following statement: If g (f) = h (f) then g = h 4a. Prove that for any natural number n > 3, at least one for the three numbers n, n+2, n+4 is not prime. (for example, if n = 7, the numbers are 7, 9, 11, and 9 is not prime. If n =21, the numbers are 21, 23, 25, and both 21 and 25 are not prime)
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.4: Binary Operations
Problem 9E: 9. The definition of an even integer was stated in Section 1.2. Prove or disprove that the set of...
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4. Let F : A --> B, g : B --> C, and h : B --> C be functions, and suppose that f is onto. Prove or disprove the following statement: If g (f) = h (f) then g = h
4a. Prove that for any natural number n > 3, at least one for the three numbers n, n+2, n+4 is not prime. (for example, if n = 7, the numbers are 7, 9, 11, and 9 is not prime. If n =21, the numbers are 21, 23, 25, and both 21 and 25 are not prime)
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