Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.3: Properties Of Composite Mappings (optional)
Problem 11E: 11. Let and . Prove that is one-to-one if is one-to-one.
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Show that if f : A → B and g : B → C are one-one, then gof : A → C is also one-one.
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