Equal set:
The two
sets are to be equal (A = B) if A 
B and B A i.e., every element of set A is an element of B and every
element of B is an element of A.
B and B A i.e., every element of set A is an element of B and every
element of B is an element of A.
For example:
A= {1, 2, 3} and B={1,2,3} then A = B.
|A|
denotes the length of set A i.e. number of elements in set A.
For example:
if A = {1, 2, 3, 4, 5} then |A| = 5.
No comments:
Post a Comment