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1) Yes, empty set is a subset of every set
2) Yes, every set is subset of itself
3) Suppose we are given two sets A and B, and we have to prove that A is subset of B.
What we will do is that we will check if every element of A is present in B or not. If all elements of A are present in B, then A is a subset of B
2) Yes, every set is subset of itself
3) Suppose we are given two sets A and B, and we have to prove that A is subset of B.
What we will do is that we will check if every element of A is present in B or not. If all elements of A are present in B, then A is a subset of B
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