Question

If A subset B and a notequal to B and A is known as?​

Answer 1

Answer:

A proper subset of a set A is a subset of A that is not equal to A. In other words, if B is a proper subset of A, then all elements of B are in A but A contains at least one element that is not in B. bolivianouft and 2 more users found this answer helpful.

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Answer 2

Answer:

If set A is the subset of set B, it means that all the elements of set A are present in set B. Also A - B means elements of set A which are not present in set B. But as we know all the elements of set A are present in set B, so A-B = { } or in other words an empty set.