An injective function (also known as *injection*, *one-to-one function*, *инекция*, *еднозначна*) is a functon

In other words, every element of the function’s codomain is the image of **at most** one element of its domain.

An injective function (also known as *injection*, *one-to-one function*, *инекция*, *еднозначна*) is a functon

In other words, every element of the function’s codomain is the image of **at most** one element of its domain.