Determine whether, for any set A, it is true that
P(A) = P(U) − P(A).
If it is true prove it, if it is not, give a counterexample.
true only if
2P(A) = P(U)
P(A) = P(U) − P(A).
If it is true prove it, if it is not, give a counterexample.
2P(A) = P(U)