#0, geometry
Posted by sid1983 on May-13-02 at 09:31 PM
can someone give an elementary proof of the "BUTTERFLY THEOREM"
for a general conic?
#1, RE: geometry
Posted by alexb on May-15-02 at 07:47 PM
In response to message #0
In Geometry Revisited (Coxeter & Greitzer) they make reference to such a proof in Coxeter's Projective Geometry.
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