22 January 2022: New visitors to sci.math: Learn for the first time since Euclid what his most important book 5 was all about.
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Eram semper recta
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Jan 21, 2022, 8:46:17 PM1/21/22
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In the following over 60 page free article I explain all the definitions and propositions of Book 5 and how arithmetic, numbers and algebra would never have been realised without it: