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Jun 15, 2014 at 14:04 history edited Geoff Robinson CC BY-SA 3.0
corrections
Jun 15, 2014 at 13:57 history edited Geoff Robinson CC BY-SA 3.0
Amended text
Jun 15, 2014 at 13:44 history edited Geoff Robinson CC BY-SA 3.0
deleted 215 characters in body
Jun 15, 2014 at 10:14 history edited Geoff Robinson CC BY-SA 3.0
Expanded earlier remarks
Jun 15, 2014 at 0:58 comment added Joseph O'Rourke Your remarks are already quite useful to me---Thanks! As is not uncommon, my question reflects some vague confusion. Otherwise I wouldn't be asking!
Jun 15, 2014 at 0:46 history answered Geoff Robinson CC BY-SA 3.0