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$x^2+y^2-x \equiv 0 (\mod{\kern4pt} 2xy)$ $x^2+y^2-x \equiv 0 (\mod{\kern4pt} xy)$ $y^2 \equiv 0 (\mod{\kern4pt} x)$ 假设$x$不是平 ... tommywong 发表于 2014-7-10 11:31
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2025-5-31 10:32 GMT+8
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