改为:
“相对性原理(所有的物理定律都是协变的)。”
--------------------------------------------------
有人认为,“光速不变原理”包含在“相对性原理”中。
参看:
1. N. D. Mermin, "Relativity without light," Am. J. Phys. 52, 119 (1984).
2. B. Coleman, "A dual first-postulate basis for special relativity," Eur. J. Phys. 24, 310 (2003).