The Steiner–Lehmus theorem and “triangles with congruent medians are isosceles” hold in weak geometries
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چکیده
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ژورنال
عنوان ژورنال: Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry
سال: 2015
ISSN: 0138-4821,2191-0383
DOI: 10.1007/s13366-015-0278-y