Proving that Functions are Injective and Surjective (One-to-One and Onto)
Автор: David Richeson
Загружено: 2020-12-23
Просмотров: 6324
0:00 Introduction
0:20 Functions
3:30 Injective/one-to-one functions
6:33 Proving that a function is injective
8:42 Proving that a function is not injective
9:28 Why is injectivity confusing?
12:02 Surjective/onto functions
14:41 Proving that a function is surjective
18:27 Proving that a function is not surjective
19:07 Why is surjectivity confusing?
20:41 Bijective functions
21:52 Proving that a function is bijective
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