2. PROPERTIES OF UNION & INTERSECTION
A ∪ B= B ∪ A (Commutative property of union)
A ∩ B= B ∩ A (Commutative property of intersection)
(A ∪ B) ∪ C = A ∪ (B ∪ C)
(Associative Property of union)
(A ∩ B) ∩ C = A ∩ (B ∩C)
(Associative Property of intersection)
A ∪ ( B ∩ C) = (A ∪ B) ∩ (A ∪ C )
(Distributive Property of union over intersection)
3. PROPERTIES OF UNION & INTERSECTION
A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C )
(Distributive Property of union over intersection)
(A ∪ B) c = Ac ∩ B c
OR
(A ∩ B) c = Ac ∪ B c
(De-Morgan’s Law)