Out of curiosity, I was recently reading through Euclid's Elements online (http://aleph0.clarku.edu/~djoyce/java/elements/elements.html" [Broken])(adsbygoogle = window.adsbygoogle || []).push({});

My question is, is this the general opinion of all mathematicians? Also, has anyone tried to fix this problem, and how many more postulates would they need? I'm really surprised because I thought for a long time that only those 5 postulates were needed to axiomize Euclidean geometry.

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# Postulates that Euclid neglected to mention?

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