What is SET ?

# Set is a collection of well defined objects.

# The following points may be noticed:

       (a) Objects, elements and members of a Set are synonymous terms.
       (b)Sets are usually denoted by capital letters A , B , C , X , Y , Z etc
       (c)The elements of a set are represented by small letters  a , b , c , x , y ,z etc

For example :   V = { a , e , i , o , u }  ,  A = { toy , magazines , packet of sweet }, N = { 1 ,2 , 3 } etc.