True or False:
For two sets A and B,A - B = B-A if and only if A = B

For any two sets A and B, A - (A - B) equals :

Let A and B be two sets. Prove that : (A -B) uu B= A if and only if B sub A .

If A and B are two events, then P(A) + P(B) = 2P(AnnB) if and only if

If A and B are sets and A uu B = A nn B then

Whether the following statement is true ? Justify your answer. For any two sets A and B either A sube B or B sube A.

Is it true that for any sets A and B, P(A) uu P(B) = P(A uu B) ? Justify your answer.

For all sets A and B, (A – B)∪ (A∩ B) = A. Is this statement true?

True or False : If A and B are square matrices of the same order then AB is non-singular if and only if both A and B are non-singular.

For any two sets A and B, prove that : (A-B) uu (B-A) = (A uu B)- (A nn B) .

Say True or False giving reason : P(A) = 0.4, P (B) = 0.25, P (A or B) = 0.65 . A and B are mutually exclusive events.