. True/False. If the statement is false, correct it to make it true.

1.All rational numbers are real numbers.

2.The set of all irrational numbers is a proper (strict) subset of the set of real numbers.

3.If A is the set of all rational numbers and B is the set of all real numbers, then A B is the set of all irrational numbers.

4.If the universal set is all numbers, then the complement of the set of all real numbers is the set of irrational numbers.

5.The number is an irrational number but not a real number.