Let A and B be finite sets, and let f : A B be a function.

Question:

Let A and B be finite sets, and let f : A → B be a function. Show that

a. if f is injective, then |A| ≤ |B|;

b. if f is surjective, then |A| ≥ jBj.

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Introduction to Algorithms

ISBN: 978-0262033848

3rd edition

Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest

Question Posted: Feb 25, 2020 12:18 PM

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Let A and B be finite sets, and let f : A B be a function.

Question:

Step by Step Answer:

a If f is injective then for any two elements a1 a...View the full answer

Introduction to Algorithms

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