CBSE Class 11-science Answered
Explain Universal set and { },which is a null set.Sir does {phi} exist?
Asked by sidhusid | 20 Apr, 2010, 06:19: PM
Expert Answer
the empty set is denoted with greek alphabet .gif){kind=small}
(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 | 20 Apr, 2010, 10:26: PM
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