Re: Daily question

Posted by Amit Goyal on Mar 24, 2009; 2:26pm
URL: http://discussion-forum.276.s1.nabble.com/Daily-question-tp2328964p2526818.html

Mar 22-25, 2009
1. Let X ={0,1}. List the elements of {P(A) |A ∈ P(X)}
2. Let X = ∅. List the elements of {P(A) |A ∈ P(X)}
3. Write the 16 elements of P(P({0,1}))
4. Find a set X with an element x such that x ∈  X and x⊂ X.

P(.) denotes the power set of .