2. Define F: Z → Z by the rule F(n) = 4n + 3, for all integers n. (a) Is F one-to-one? Prove or give a counterexample. (b) Is F onto? Prove or give a counterexample.
2. Define F: Z → Z by the rule F(n) = 4n + 3, for all integers n. (a) Is F one-to-one? Prove or give a counterexample. (b) Is F onto? Prove or give a counterexample.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.2: Mappings
Problem 23E: Let a and b be constant integers with a0, and let the mapping f:ZZ be defined by f(x)=ax+b. Prove...
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