Question

Describe in extension each of the following sets:a) A is the set of positive integers less than 8.C) C is the set of digits of the number 12353888D) D is the set of courses you are enrolled in.

Answer 1

a. All positive integers are greater than 0,

we can express this as a set which positive integers less than 8, A = {1, 2, 3, 4, 5, 6, 7}.

This is a Finite Set.

b. The number 12353888 has a set of digits, 1, 2, 3, 5 and 8 and can be expressed as C = {1, 2, 3, 5, 8}

This is also a Finite Set.

c. The set of courses you are enrolled depends on the number of courses. We can express this as

D = {course1, course2, course3, ...}

This is Universal Set.