Number Theory Review

\[ axiom:\\ \left.\begin{matrix} g|x\\ g|y\end{matrix}\right\}\Rightarrow \left\{\begin{matrix} g|x\pm y\\ g|xy \end{matrix}\right.\\ \left.\begin{matrix} g|x\\ h|x\\ gcd(g,h)=1 \end{matrix}\right\}\Rightarrow gh|x \]     Read more
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tigertang Aug 25, 2017