Re: The first postulate is a truism.

On Sun, 22 Jun 2025 11:25:52 +0000, J. J. Lodder wrote:

Mikko <mikko.levanto@iki.fi> wrote:
>

On 2025-06-19 17:37:29 +0000, LaurenceClarkCrossen said:
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Perplexity:
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"The First Postulate of Special Relativity
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Statement of the First Postulate
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The first postulate of special relativity, also known as the principle
of relativity, states:
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    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.

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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?)
>
Jan

Then it must not be a postulate considering that the first postulate is
"a statement that is obviously true and says nothing new or
interesting."