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Tuesday, August 31, 2021

Annals of Geometry

Filed under: General — Tags: , — m759 @ 2:21 PM

A passage by Max Jammer quoted in yesterday's post
A Brief Introduction to Ideas suggests further remarks:

There are geometries in which lengths are not invariant 
because they are not  relevant — for instance, projective 
geometry,  finite  geometry, and of course finite projective 
geometry.

See the annus mirabilis  introduction to that subject 
cited by Jammer in yesterday's Brief Introduction —

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