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when toggle format what by license comment
Apr 17, 2011 at 6:17 comment added Seva Correct - but, in fact, I didn't mean uniformity in $a$ here. I have inserted a minor, but important refinement.
Apr 17, 2011 at 2:59 history edited Aaron Meyerowitz CC BY-SA 3.0
added 45 characters in body
Apr 17, 2011 at 1:49 history answered Aaron Meyerowitz CC BY-SA 3.0