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Ein elementargeometrischer Beweis des Lotensatzes von Hjelmslev. (An elementary geometrical proof of the perpendicular theorem of Hjelmslev.) - MaRDI portal

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Ein elementargeometrischer Beweis des Lotensatzes von Hjelmslev. (An elementary geometrical proof of the perpendicular theorem of Hjelmslev.) (Q921587)

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scientific article; zbMATH DE number 4165883
Language Label Description Also known as
English
Ein elementargeometrischer Beweis des Lotensatzes von Hjelmslev. (An elementary geometrical proof of the perpendicular theorem of Hjelmslev.)
scientific article; zbMATH DE number 4165883

    Statements

    Ein elementargeometrischer Beweis des Lotensatzes von Hjelmslev. (An elementary geometrical proof of the perpendicular theorem of Hjelmslev.) (English)
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    1988
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    Für den Lotensatz in der euklidischen Ebene werden zwei einfache Beweise angegeben. Diese benutzen den Dreispiegelungssatz und Eigenschaften der dabei auftretenden Winkel.
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    Euclidean plane
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    perpendicular theorem
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    three-reflection theorem
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