Hjelmslev's theorem
专有名词
英文释义
专有名词
- a theorem stating that if a set of points P_i lying on a line is isometrically mapped to points P_i' on a different line, then the midpoints of the segments P_iP_i' also lie on a line.
词源
Named after Johannes Hjelmslev.
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数据来源: Wiktionary