Re: The first postulate is a truism.

On 2025-06-22 11:25:52 +0000, J. J. Lodder said:

Mikko <mikko.levanto@iki.fi> wrote:
 

On 2025-06-19 17:37:29 +0000, LaurenceClarkCrossen said:
 

Perplexity:
 "The First Postulate of Special Relativity
 Statement of the First Postulate
 The first postulate of special relativity, also known as the principle
of relativity, states:
 The laws of physics are the same in all inertial frames of
reference."
  "truism
/?tr?iz?m/  n. a statement that is obviously true and says nothing new
or interesting. —truistic/tr?istik/ adj." -Oxford American.

 The first postulate is not a truism. It is possible to imagine a world
where it is not true and to believe that we actually live in a such
world.

 Applying 'truism' to postulate is a category error anyway,
(but what do we expect from dear Laurence?)

I think the (mistaken) idea was that if it is a truism it is wrong
to call it a postulate.
--
Mikko