The function [latex]f : \mathbb{R} \rightarrow \textsuperscript{+}\mathbb{Z}[/latex] . This tells me that I have defined a function f such that f maps the elements from the set of natural numbers to elements of the integers.
Let’s give an arbitrary function \(f\) such that \(f\) maps elements from set \(A\) to set \(B\). The graph of this function is defined by… $$R_f = {\left \{ \left \langle x,y \right \rangle : f(x) = y\right \}}$$
