Set Theory

Front

Venn diagram with two sets

Back

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

Front

Venn diagram with 3 sets

Back

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

Front

Symbol for union

Back

The symbol for union is '∪'.

Front

Symbol for Element

Back

The symbol for element is '∈'.

Front

Symbol for set

Back

The symbol for set is usually represented by curly braces '{ }'.

Front

Symbol for intersection

Back

The symbol for intersection is '∩'.

Front

Symbol for subset

Back

The symbol for subset is '⊆'.

Front

Question for null set

Back

What is a null set? A null set is a set with no elements, represented by '∅' or '{}'.

Front

Question for cardinality

Back

What is cardinality? Cardinality refers to the number of elements in a set.