Hjelmslev's theorem

English

Etymology

Named after Johannes Hjelmslev.

Proper noun

Hjelmslev's theorem

1. (geometry) 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 $P_{i}P_{i}'$ also lie on a line.

Translations

geometry

• German: Satz von Hjelmslev