Chat with our AI personalities
The complement of a set refers to everything that is NOT in the set. A "universe" (a set from which elements may be taken) must always be specified (perhaps implicitly). For example, if your "universe" is the real numbers, and the set you are considering is 0
Irrational numbers may be denoted by Q' since they are the complement of Q in R, the set of Real numbers.
It is if we only consider integers. If we consider all real numbers, for example, it would not be.
In a certain sense, the set of complex numbers is "larger" than the set of real numbers, since the set of real numbers is a proper subset of it.
Only if they are fractions in their simplified form.