Question number set What is the number set? Please use a new freshman to understand the words to answer

A number set is a set of numbers that satisfy the same condition
For example, a set of positive numbers is a set of positive numbers such as 1, 2, 3, 4, etc
Negative number set: a set of negative numbers, such as - 1 - 2 - 3
It's just a collection of numbers
Remember to adopt yo pro

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