Hans Reichenbach Quote

Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.


The Philosophy of Space and Time (1928, tr. 1957)


Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.

Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.

Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.

Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms.