By Guillen

Explains vital mathematical techniques, comparable to chance and facts, set thought, paradoxes, symmetries, dimensions, video game conception, randomness, and irrational numbers

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We can even predict the exact numerical leaps between Cantor's stepping stones using a simple formula that was already known during his time. According to this formula, the number of subsets we can create from a finite set with x number of elements is " 2 multiplied by itself x times. " In symbols, the phrase in quotes is normally written 2x. Thus, in symbols, a two-element set has 2 2 (that is, four) subsets and a four-element set has 24 (sixteen) subsets. If Cantor had stopped after having defined his stepping stones, then he would have provided us with a well-organized, rational prescription for getting to, but not necessarily reach ing, an infinite set.

Then there is chemistry, in which the dynamics of a reaction are determined in large measure by the properties of the chemical elements involved. Those properties, in turn, are associated with the atomic numbers of the elements. The atomic number of an element is equal to the number of electrons in each of its atoms, and it is always a rational number-a whole number, to be precise. For example, ele ments with atomic numbers 2, 10, 1 8 , 3 6, 54, and 86 are chemically inert; they don't react at all with the other ele ments.

Similarly, I think it's clear that the asymptotic limit of the numerical sequence . 9 , . 9 9 , . 9 9 9 , . 9 9 9 9 , and so on, is simply the number 1 . It is never actually 1 , but it is forever becoming a number that comes closer and closer and closer to 1 . With most examples, however, behavior at infinity is not so obvious, yet even in these cases mathematicians have dis covered ways of actually determining the asymptotic limit. 24 Locating the Vanishing Point Most of these methods are based on the ability to add up an infinite sequence of numbers-something which may sound impossible, but at which mathematicians have become quite adept during the last 3 00-odd years.