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Topic: Collinear
Replies: 9   Last Post: May 8, 2013 1:12 PM

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Registered: 12/4/12
Re: Collinear
Posted: May 7, 2013 6:25 PM
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On 5/7/2013 2:48 AM, 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?

Is this true?

If I recall, there is something from
design theory called a Pasch configuration.


| D

Maybe I am not recalling correctly.

This is better:


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