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Cardinality of Sets

Every set is ...

Question

Every set is a ___________ of itself.

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Solution

Subsets: If each element of set A is an element of set B, then set A is said to be the subset of set B. The symbol for the subset is ⊆ . It is written as A⊆B that is A is a subset of B while set B is called the super-set of A.
Hence,every set is a subset of itself.

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