Group A

Group B

Group C

Group D

•Set a well-defined collection of ideas

and objects.

• Elements are objects in the set.

• Universal sets refers to the set which contains all the

elements under discussion.

Describing Sets1. Roster Method

A = { }

A = {dog, horse, cat, tiger}

Roster Method

-This method enumerates the elements of a set inside a pair of braces.

2. Set- Builder Notation

A = {x x is a yellow fruit}

Read as: A is the set of all x such that x is a yellow

fruit.

Kinds of SetFINITE

Kinds of SetINFINITE

Kinds of SetEMPTY

FINITE is a set with the elements are countable.

INFINITE is a set with the elements not countable.

EMPTY a set that has no elements.

Kinds of Set According to Relationship

A B

JOINT SETS

Kinds of Set According to Relationship

A B

DISJOINT SETS

Kinds of Set According to Relationship

A B

EQUIVALENT SETS

Kinds of Set According to Relationship

A B

EQUAL SETS