11. Which functions in Exercise 10 are onto?
Let’s refresh the relevant definition we need to know to solve this exercise. “A function f from A to B is called onto, or a surjection, if and only if for every element b∈B there is an element a∈A with f (a)=b. A function f is called surjective if it is onto.” Discrete Mathematics and […]
11. Which functions in Exercise 10 are onto? Read More »