In a set of natural numbers there exists a definite largest number.
True
False
In a set of natural numbers, the largest number cannot be determined.
Answer True (T) or False (F).
There exist a natural number that has no factor at all.
State whether the following statements are true or false:
(a) The set of all even natural numbers is a infinite set.
(b) Every non-empty subset of has the smallest element.
(c) Every integer can be identified with a rational number.
(d) For each rational number, one can find the next rational number.
(e)There is no largest rational number.
(f) Every integer is either even or odd.
(g) Between any two rational numbers, there is an integer.