State which of the following statement are true.
(i) `{}=phi` (ii) `phi=0` (iii) `0={0}`

State wheteher the following statements are true of false.

A is the set of prime number less than 10, B is the set of odd numbers less than 10 and C is the set of even numbers of less than 10. Which of the following statements are true? (i) A subset B (ii) B subset A (iii) A subset C (iv) C subset A (v) B subset C (vi) phi subset A

If y+log(1+x)=0 which of the following is true?

State whether the following statements are true or false. Justify your answers. (iii) Not all even numbers are divisible by 2.

State whether the following statements are true or false. Justify your answers. (iii) Every real number need not be a rational number

State whether each of the following statements are true or false. If the statement is false, rewrite the given statement correctly. (i) If P= {m, n} and Q = {n, m}, then P xx Q= {(m, n),(n, m)}. (ii) If A and B are non-empty sets, then A xx B is a non-empty set of ordered pairs (x, y) such that x in A and y in B. (iii) If A={1,2}, B={3,4} then A xx (B cap phi)=phi

State whether the following statements are true or false. Justify your answers. (ii) Some polygons are pentagons.

State whether the following statements are true or false. Justify your answers. (ii) Every rational number is a real number.

By giving a counter example, show that the following statements are not true. (ii) q: The equation x^(2) - 1 = 0 does not have a root lying between 0 and 2.