If A is a subset of B , then prove that A union B is B .
For any two setsA and B prove that
A intersection (A' union B ) = A intersection B
(Distributive laws) For any three sets A, B, C prove that:
I. A∪(B∩C)=(A∪B)∩(A∪C) [Distirbutive law of union over intersection]
II. A∩[(B∪C)]=(A∩B)∪(A∩C) [Distributive law of intersection over union]