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@peterliepa | |||||
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of the Hesse Transfer Principle in Richter-Gebert's Perspectives on Projective Geometry.
@geogebra #projectivegeometry
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Peter Liepa
@peterliepa
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4. pro |
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Projective geometry is endlessly fascinating. The six points of a complete quadrilateral (blue) are centrally projected to a conic. The images of opposite points define 3 lines (green) that are concurrent (as indicated by the red arrow). Based on an illustration
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