Set Theory

Venn diagram with two sets

• A diagram that shows all possible logical relations between a finite collection of different sets.

• A chart that represents data in a circular format.

• A graph that displays the relationship between two variables.

• A table that organizes information in rows and columns.

Venn diagram with 3 sets

• A diagram that shows all possible logical relations between three different sets.

• A chart that represents data in a circular format.

• A graph that displays the relationship between two variables.

• A table that organizes information into rows and columns.

What is cardinality?

• The measure of the size of a set.

• The relationship between two sets.

• The number of elements in a set.

• The process of counting elements in a set.

Symbol for union

• '∩'

• '∪'

• '∅'

• '∈'

Symbol for Element

• '∈'

• '∉'

• '⊆'

• '⊂'

Symbol for set

• Curly braces '{ }'

• Square brackets '[ ]'

• Parentheses '( )'

• Angle brackets '< >'

Symbol for intersection

• ∩

• ∪

• ∧

• ⊕

Symbol for subset

• ⊆

• ⊂

• ⊇

• ⊃

What is a null set?

• A set with no elements, represented by '∅' or '{}'

• A set that contains at least one element

• A set that contains all possible elements

• A set that is empty but can contain elements later