 Two cases should be noted in this figure: The use of the alphabet—the letters that surround the figure from “b” to “r”, whose function is to refer to the terms inside of the figure in a simplified way, although they are not found in all the versions of the Ars—and the network of lines that join each term within the figure with all the remaining ones, which are not shown in all the versions either. These lines illustrate the combinations found within this figure. In this case, each one of the 16 terms would have 15 combinations with the remaining terms. This combining possibility is supported by the fact that each Dignity may be converted into another, by the principle of the unity of all divine attributes. Moreover, it reflects the principle of the argument of equivalence, which, as was already explained, is one of the demonstrative forms of the Ars.