Integer If the domain is restricted to then each and every member of has one and only one corresponding member of N and by the definition of cardinal equality the two sets have equal cardinality. Integer An integer (from the Latin "integer" meaning "whole") is a number that can be written without a fractional component. For example, 21, 4, 0, and −2048 are integers, while 9.75, , and are not. The set of integers consists of zero (), the positive natural numbers (, , , …), also called "whole numbers" or "counting numbers", and their additive inverses (the negative integers, i.e.,
Lelong number number ν("A","x") is the limit of the ratio of the areas of "A" ∩ "B"("r","x") and a ball of radius "r" in C as the radius tends to zero. (Here "B"("r","x") is a ball of radius "r" centered at "x".) In other words the Lelong number is a sort of measure of the local density of "A" near "x". If "x" is not in the subvariety "A" the Lelong number is 0, and if "x" is a regular point the Lelong number is 1. It can be proved that the Lelong number ν("A","x") is always an integer. Lelong number In