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From: Thomas Heger <ttt_heg@web.de>
Newsgroups: sci.physics.relativity
Subject: Re: [SR and synchronization] Cognitive Dissonances and Mental
 Blockage
Date: Wed, 21 Aug 2024 08:49:08 +0200
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Am Dienstag000020, 20.08.2024 um 13:00 schrieb Mikko:
....
>>>>>> Relativity requires mutally symmetric methods. So if you 
>>>>>> synchronize clock B with clock A, this must come to the same 
>>>>>> result, as if you would synchronize clock A with clock B.
>>>>>
>>>>> It is.
>>>>
>>>> No, it is not!
>>>
>>> It is. It is explained in my initial post : What is (AB)/c to you?
>>
>> AB was actually meant as:
> 
> Note that in Einstein's text the definition of synchronity (page 894)
> does not use AB. Lower on the same page AB has an overbar.
> 
>> distance from A to B,
>>
>> even if A and B are in fact position vectors, hence AB would usually 
>> be the scalar product of A and B (what is absurd).
> 
> A nad B are not position vectors, they are positions. Postions are not
> vectors. AB with overbar is the standard notation for the distance btween
> positions A and B.

In my version there were no overbars.

But the actual positions cannot be used in equations anyhow, because 
real material objects cannot be used in equations of any kind.

It is just rediculus to regard the points themselves as part of an equation.
....


TH