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when toggle format what by license comment
Dec 15, 2013 at 18:24 comment added Joe Silverman You should specify that $g_1$ and $g_2$ are distinct and not equal to $0$.
Dec 15, 2013 at 17:07 answer added john timeline score: 0
Dec 15, 2013 at 15:42 answer added abx timeline score: 1
Dec 15, 2013 at 15:07 history asked ginevra86 CC BY-SA 3.0