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when toggle format what by license comment
Mar 13, 2014 at 4:34 comment added Yuji Tachikawa Thanks, that should be the correct mathematical statement of what I wanted to say :-p
Mar 13, 2014 at 4:33 vote accept Yuji Tachikawa
Mar 12, 2014 at 16:16 history answered Steven Sam CC BY-SA 3.0