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Re: Collinear
Posted:
May 7, 2013 11:00 AM


On 07/05/2013 08:48, William Elliot wrote: > Let C be a collection of n points with the property that > any line L with two points of C on it, has a third point > of C on it. > > How is it that C is collinear, ie all points of C are > on a single line? >
SylvesterGallai theorem: http://en.wikipedia.org/wiki/Sylvester%E2%80%93Gallai_theorem



