As there are an infinite number of whole numbers, how can the number of even numbers between one and infinity always be described?
Infinity. There are also infinitely many. You could write any whole number with an even number twice as large alongside. This is called a one-to-one correspondence, and it is important because for any list of numbers with this one-to-one relationship to whole numbers, it can be seen there are infinitely many (and this infinity has the same value).
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