Sets and Equivalence Relations

https://www.youtube.com/watch?v=FI6j5QZNVx0

Sets

COMPLIMENT IS: UNIVERSAL SET MINUS A

the 'E' means belongs to

The 'C' with the line under it means doesn't belong to

x: the statement prior is true if...

Venn Diagrams

Note: the red region is the area we are after

Ordered Pair

Relations

Example

Example 2