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Tag: number

Mr. Spun’s Truly Terrible Awful Jokes: #12
Posted on January 2, 2016February 19, 2016

Mr. Spun’s Truly Terrible Awful Jokes: #12

What is a German’s favorite negative number?
Continue reading “Mr. Spun’s Truly Terrible Awful Jokes: #12”

Euclid on Prime Numbers
Posted on October 6, 2015October 6, 2015

Euclid on Prime Numbers

In Book VII of his Elements Euclid sets forth the following: Any composite number is measured by some prime number. Elements, Book VII, Pr.31 By appealing to the impossibility of an infinite regress of natural numbers, his demonstration takes the form of a reductio ad absurdum. (For the proposition, scroll to the bottom of this post) … Continue reading Euclid on Prime Numbers

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