There are infinitely many subsets:
All odd numbers.
All even numbers.
All prime numbers.
All numbers that leave a remainder of 7 when divided by 9.
All triangular numbers.
The ages (in whole years) of the members of my family.
The number of bedrooms in each house on my street.
and so on.
Integers, rationals. Also all subsets of these sets eg all even numbers, all integers divided by 3.
Integers that are divisible by 3, integers that leave a remainder of 1 when divided by 3 and integers that leave a remainder of 2 when divided by 3.
Yes, the natural numbers are positive integers. {1,2,3,....}
The set of integers is divided into three subsets. One is the positive integers. Another is the negative integers. The last subset has one element -- zero. In sum, integers are composed of the positive integers, the negative integers, and zero.
natural numbers integers and whole numbers
Both are subsets of the real numbers.
Concentric circles. The set of whole numbers is a subset of the set of integers and both of them are subsets of the set of rational numbers.
Integers, Rational numbers, Real numbers and Complex numbers.
It is the set of all the things you are dealing with or considering. For example, if I am looking at subsets that are even integers and I am looking at all integers, then the set of all integers is the universal set. If we are looking at hair color, some subsets are redheads, blondes etc. The universal sets is the set of all possible hair colors.
Integer Subsets: Group 1 = Negative integers: {... -3, -2, -1} Group 2 = neither negative nor positive integer: {0} Group 3 = Positive integers: {1, 2, 3 ...} Group 4 = Whole numbers: {0, 1, 2, 3 ...} Group 5 = Natural (counting) numbers: {1, 2, 3 ...} Note: Integers = {... -3, -2, -1, 0, 1, 2, 3 ...} In addition, there are other (infinitely (uncountable infinity) many) other subsets. For example, there is the set of even integers. There is also the subset {5,7}.
Rational numbers, whole numbers, negative numbers, even numbers, integers
No. Even numbers, and odd numbers are subsets of the integers. Since 0.4 is not an integer, it is neither even nor odd.