Question
Wed June 20, 2012 By: R.k. Kumar

Is null set a subset of set A?

Expert Reply
Wed June 20, 2012
The empty set or Null Set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. It is generally denoted by phi. The null set is a subset of any set A, as every element x of phi (the null set) belongs to A.
Ask the Expert