Sets

Matching exercise

    
Match the items on the right to the items on the left.
Commutative law
Associative law
Law of identity element
Idempotent law
Law of U
A ∪ B = B ∪ A
( A ∪ B ) ∪ C = A ∪ ( B ∪ C)
A ∪ φ = A
A ∪ A = A
U ∪ A = U