Does principle of relativity hold in relativisticphysics?László E. SzabóTheoretical Physics Research Group of the HungarianAcademy of SciencesDepartment of History and Philosophy of ScienceEötvös University, Budapest, Hungaryhttp://hps.elte.hu/leszaboRelated paper: L. E. Szabó, “On the meaning of Lorentz covariance”,Foundations of Physics Letters (forthcoming, October).