Hjelmslev's theorem

English

Etymology

Named after Template:W.

Proper noun

1. Template:Lb a theorem stating that if a set of points $P_i$ lying on a line is isometrically mapped to points ${P_i}^{\prime }$ on a different line, then the midpoints of the segments $P_i{P_i}^{\prime }$ also lie on a line.

Translations

• German: Template:T