Explain Universal set and { },which is a null set.Sir does {phi} exist?

Asked by sidhusid | 20th Apr, 2010, 06:19: PM

Expert Answer:

   the empty set is denoted with  greek alphabet (pronounced as phi).it's the subset of every set.

{phi} does not indicate the empty set,it's just a set containing the element phi(the word)

Answered by  | 20th Apr, 2010, 10:26: PM

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