injektiivisiin
Injektiivisiin is a term used in mathematics, specifically in set theory and abstract algebra, to describe a type of function. A function is considered injektiivinen, or injective, if it maps distinct elements of its domain to distinct elements of its codomain. In simpler terms, an injective function does not send two different inputs to the same output.
Formally, a function f from a set A to a set B is injective if for any
Injective functions are important because they preserve the distinctness of elements. If a function is injective,
Examples of injective functions include f(x) = 2x for real numbers, where each unique real number input