Nobody made them. They are a property of some integers.
David Missoula's
Integers is one such set.
Negative integers, zero and the positive integers, together form the set of integers.
2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.
Non-positive integers are zero and the negative integers.
TrueYes.All rational numbers are a fraction of one integer (numerator) over another integer (denominator).All integers can be made into a[n improper] fraction over a denominator of 1.Thus all integers are rational numbers
Those letters are indeed often used to represent integers. But in practice, it's best to always check what assumptions are made. If certain variables (letters) are meant to be integers only, for example for some theorem, this should be stated explicitly.
The set of integers represents the integers.
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.
At least the following families: all integers; all positive integers; all odd integers; and all "square integers", that is, integers that are squares of other integers.
The boundary points of the integers is simply the integers.