Assertion: motion's motion | /r/CapableOf | preserve space-time intervals
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Source sentences:
text: The physical principle of constant velocity of light is expressed by the requirement that the change from one inertial frame to another is determined by a motion of Minkowski space, i.e. by a transformation ϕ : R 1 , 3 ↦ R 1 , 3 {\displaystyle \phi :R^{1,3}\mapsto R^{1,3}} preserving space-time intervals.