Answer and explanation
SET EQUALITY :If the elements are same in given two set then the sets are called equal set and this property is called set equality.
Example: let two set A={1,4,6,7} and B ={1,4,6,7} then these two sets are called equal set and this property is called set equability
SUBSET CARDIALITY : It is the measure of the number of elements in the set
Example : let st A ={1,2,3,4} then its subset cardimality is 4
POWER SET : Power set is nothing but the set of all the subset of the given set.
Example; let set A ={1,2} then its power set is { { }, {1}, {2}, {1,2} }
DISJOINT SET : If there is no common element in the two given set then they are called disjoint set
Example : let set A ={1,2,3} and B ={4,5,6} these two sets are disjoint set