Definition 2.. The superpositions of infinitely small are not close to the infinitely great owing to even upon extending forever of infinitely small can aslo not reach the infinitely great.In other words, quantities of continuous superpositions of the infinitely small remain only in the finite range, and the size cannot be compared between the infinitely small and its quantities of superpositions (infinitely small is the same size as its quantities of superpositions). Furthermore, there are no minimum and maximum quantities in the finite range. In addition, the front (decrease) and back (increase) infinitely small quantities can be randomly extended without bounds in the finite range. Therefore, it is meaningless that infinitely small is 0. Instead, the infinitely small is defined as a one-dimensional quantity of finite length whose size cannot be compared in a finite range relative to infinite great (i.e., it only has finite properties). In brief, we refer to the infinitely small as a finite quantity in the following discussion as shown in Figure 1.