Question

How do I prove that no set is an element of itself?

Answer 1

do you mean, the null set is an element of itself?

Answer 2

Have to admit I don't know. Have you considered looking up (Googling) the term "element of a set"? Perhaps the definition would help you to answer this question.

A warm welcome to OpenStudy!

Answer 3

(the null set is not an element of itself)

Answer 4

I don't know, the question didn't say anything about a null set. Thanks guys, I'll try googling it again