Normally, sets are given in the various ways

A) ROASTER FORM OR TABULAR FORM

In that form, we describe all the member of the set within braces (curly brackets) and differentiate these by commas. For instance, the set of all even integer numbers minimum than 10 and bigger than 0 in the roster form is described as: A = {2,4, 6,8}

B) SET BUILDER FORM OR RULE FORM

In this form, we write a variable (say x) representing any member of the group or set followed by a property fulfilled by every member of the set. A = {x| x ≤5, x € N} the symbol '|' describe for the words" such that".