What is a Set?

What is a set?

A set is a collection of distinct items that we call elements.

There are infinite sets.
There are finite sets.

Let A = a set of infinite items.

A = {shoes, pie, beach, sand, hair,. . .}

Let B = a set of finite items.

B = {Matthew, Mark, Luke, John}

There are only 4 gospels in the New Testament. Thus, set B represents a finite set.

The same thing can be done with numbers.

Is any of this right?

 

correct

 

Thanks. I just found the following questions. What do you say?

1. Fraction of Original Price
   
2. Actual Area of Room