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# SETS

CONTENT

1. Definition of sets
2. Set Notations
3. Types of Sets

## Definition of Sets

A set is a general name for any group or collection of distinct elements. The elements of a set may be objects, names, points, lines, numbers or idea.

The elements must have unique characteristics (specification) that can help to distinguish them from any other element outside the group or set. Hence, a set is a collection of well defined objects e.g.

(i) a set of mathematics text books

(ii) a set of cutleries

(iii) a set of drawing materials etc.

Sometimes there may be no obvious connection between the members of a set. Example: {chair, 3, car, orange, book, boy, stone}.

Each item in a given set are normally referred to as member or element of the set.

## Set Notation

### Meaning of Set Notation

This is a way of representing a set using any of the following:

1. Listing method
2. Rule method or word description
3. Set builders notation.

Lesson tags: General Mathematics Lesson Notes, General Mathematics Objective Questions, SS1 General Mathematics, SS1 General Mathematics Evaluation Questions, SS1 General Mathematics Evaluation Questions First Term, SS1 General Mathematics First Term, SS1 General Mathematics Objective Questions, SS1 General Mathematics Objective Questions First Term
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