Note 16 — ON THE ORIGIN AND SIGNIFICANCE OF GEOMETRICAL AXIOMS.
E. (Edmund) Atkinson translation
The reciprocal of the square of this distance, expressed in negative quantity, would be the measure of curvature of the pseudospherical space.
E. (Edmund) Atkinson translation
The reciprocal of the square of this distance, expressed in negative quantity, would be the measure of curvature of the pseudospherical space.