Consider that , and  are the sets, then

1.
2.  are called Idempotent laws.

3.
4.  are called Commutative laws.

5.
6.  are called Associative laws.

7.
8.  are called Distributive laws.

9.
10.  are called De-Morgan’s Laws.

11.
12.
13.
14.

15. is called Symmetric Difference.

16.
17.
18.