Mathematics 7: Sets

It is a well- defined group of objects or collection of objects.

• Set

• Elements

• Cardinality

It can be used to denote sets.

• Lowercase Letters

• Capital Letters

• Both Lowercase and Capital Letters

What do we call the group of objects or collection of objects that share a common characteristic?

• Elements

• Set

• Group

A symbol used to show that an object is a member of a set.

• 0

• { }

• ∈

It is the number of elements contained in given set.

• Subset

• Cardinality

• Empty Set

It is a subset of any set.

• Elements

• Union of Sets

• Null Set

It is a symbol that used to denote empty or null set.

• O

• { 1, 2, 3}

• ∅

It is a method in describing the set in words using a verbal statement.

• Roster or Listing Method

• Verbal description method

• Set-builder Notation

When using this method, we list the elements of the set in a row between curly braces.

• Roster Notation

• Verbal Description Method

• Set-builder Notation

When using this method, we add a brief description of a specific property that is common to all members of that set.

• Roster Notation

• Verbal Description Method

• Set-builder Notation