2.1 Basic Set Concepts

What is a set

A set is a collection of objects whose contents can be clearly determined. The objects in a set are called the elements, or members, of the set.

One method is____where the set is described using sentences. An example of this is____

A word description "Set W is the set of primary colors"

I used the roster method and negative integers to express the set of the top 10 magazines, rated by popularity

The statement does not make sense

The symbol ∊ means what?

The symbol ∊ is used to indicate that an object is an element of a set. The symbol ∊ is used to replace the words "is an element of.

Explain what is meant by​ "equal sets."

equal sets have the exact same elements that may not be in the same order.

Capital letters are generally used to

name sets

The set of counting numbers is also called the set of

natural numbers.

A set that contains no elements is called the​ _______ set and is represented by​ _______.

null,∅

Determine whether the following statement is true or false. If the statement is​ false, make the necessary​ change(s) to produce a true statement. n{,∅}=1

the statement is false

Any set in roster notation that contains three dots must be an infinite set.

true

A set must be ______ meaning that its contents can be clearly determined.

well defined