Now, we shall concern Ourselves with another of the concepts of mathematics important, - the notion of mapping. But first let us try an experiment to yield some information about kế our mental Habits. Visualize Your best friend. Of course, the image of A Certain forms in your mind of the individual. But did you notice mà Accompanying this image is a name - the name của friend? Not only did "see" your friend, but you am also thought of his name. In fact, is it im possible for you to visualize the individual without any ngay HIS name's equity in your memory? Try! Furthermore, is it im possible for you to think of the name of security of the individual, at the same time, visualizing the individual mà? The point of the experiment is to proven and demonstrated mà Proceeding chúng a person habitually links together with his name, We seldom think of one without the other. Let us see what there is of value in the above mathematical observation. First, let us state the essentials of the situation. On the one hand, have a set of persons chúng, on the other hand, the set of names of persons những.
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