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when toggle format what by license comment
S Jul 15, 2016 at 20:19 history suggested Martin Sleziak CC BY-SA 3.0
Replaced postimg links by imgur links (which should be more stable) - the question has been bumped anyway
Jul 15, 2016 at 20:07 review Suggested edits
S Jul 15, 2016 at 20:19
Jun 25, 2013 at 3:02 review Late answers
Jun 25, 2013 at 6:26
Mar 23, 2013 at 6:09 comment added Shaswata Sorry,didn't see that.
Mar 22, 2013 at 23:08 comment added JRN Your answer is similar to Allen Hatcher's: mathoverflow.net/questions/2014/…
Mar 22, 2013 at 18:21 history answered Shaswata CC BY-SA 3.0