The Fixed Point Theorem

"Let E be a nonempty complete metric space, a function."

"Suppose that there exists a real number k less than one such that for all we have ."

"Then there exists a unique point such that ."

See ita-8-1-2-page170.

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I have not included the proof here because I am concerned with the proof of a different point:
It is not so hard to step from basic numeracy to advanced mathematics.

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