I am not understanding it For each of the following sets, tell if it an infinite set, finite set or aA emplyEmpty1. (x E R : 7 < x < -7}Infinite2. (x E R : x < 7}Infinite3. {x E Z : x > 7}Infinite4. (x E N : 7 < x < -7}Infinitev 5. {x E R : x > 7}Infinite6. (x E N : x < 7}

Answered: For each of the following sets, tell if…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I am not understanding it

For each of the following sets, tell if it an infinite set, finite set or aA emply
Empty
1. (x E R : 7 < x < -7}
Infinite
2. (x E R : x < 7}
Infinite
3. {x E Z : x > 7}
Infinite
4. (x E N : 7 < x < -7}
Infinite
v 5. {x E R : x > 7}
Infinite
6. (x E N : x < 7}

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Finite sets are the ones, which have countable number of elements in a set. Infinite sets are the ones, which have uncountable number of elements in a set and the empty set has no number of elements in it.

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