# Two Butterflies Theorem III

What is it about?

A Mathematical Droodle

This is a further generalization of the Two Butterflies theorem. One was suggested by Nathan Bowler who observed that the two butterflies need not live on the same circle as long as the circles intersect. It appears that the latter restriction is unnecessary. If the circles do not intersect the role of AB - the meeting place of the butterfly contours - is taken up by the radical axis of the circles.

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