Talk:Reciprocity (projective geometry)

This is bogus!
The definition given is that of a duality (and the duality (projective geometry) page refers to this one). A reciprocity is a special type of correlation of the real projective plane defined using inversion in a circle. The "see also" link sends you to nothing that is related to geometry. I have seen this mix up of reciprocity and duality in a MathWorld article on duality. The incorrect definition of correlation given here is also a wonder. Unless someone wants to do this page correctly, I'd suggest that it be tossed. Bill Cherowitzo (talk) 17:12, 24 September 2011 (UTC)