3 Ways To Declare A Set In Math

The following are three ways to declare the set, including:

a. Declare a set with words

The set can be described with words or sentences representing members of the greeting set, for example as follows:

1. A Is a set of two-legged animals. It can also be written A = {two-legged animal}.
2. B is the Association of Indanosia Heroes. It can also be written B = {Heroes of Indonesia}

b. Declare a Set with Set Assistance Notation

In addition to words, a set can be expressed by the set-up notation. In this case, the object is represented by a variable or variable, for example the variable x or y. For example, consider the following:

K = {x l x prime number less than 15}, read "K is the set x with x is prime number less than 15"

c. Declare a Set by Registering Its Members

In addition to words and with the set-up notation, a set can also be stated by registering its members. This method is known as Rooster. Examples are as follows:

P = {Name of the month in the year ending in letter i}. Writing by registering its members is P = {January, February, May, June, July}.

So many articles this time. Sorry if there is a mistake.
Final words wassalamualaikum wr. wb.

Reference:

• The book is logic with mathematics for the seventh grade ingusan high school (Umi Salamah)

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