Re: Since several claim to be so smart

From	Sylvia Else <sylvia@email.invalid>
Newsgroups	sci.physics
Subject	Re: Since several claim to be so smart
Date	2021-11-18 15:15 +1100
Message-ID	<ivm2aoFrequU1@mid.individual.net> (permalink)
References	<ivlmquFpgojU1@mid.individual.net> <ivlp26FptcgU1@mid.individual.net> <ivlqo1Fq5kcU1@mid.individual.net>

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On 18-Nov-21 1:05 pm, whodat wrote:
> On 11/17/2021 7:37 PM, Sylvia Else wrote:
>> On 18-Nov-21 11:59 am, whodat wrote:
>>> Several posters in this newsgroup claim to be of genius caliber.
>>>
>>> So here's a challenge for them. Prove, or disprove, Euclid's
>>> parallel postulate, also known as his fifth postulate. 
>>
>> It has been known for a long time that it cannot be proved or disproved.
>>
>> If the axiom is asserted, then you have plane geometry.
>>
>> If its inverse is asserted, then you have some kind of curved 
>> geometry. For example, it is clearly false in spherical geometry.
>>
>> Accordingly, if neither the axiom, nor is inverse, is asserted, then 
>> nothing can be said about parallel lines.
>>
>> Sylvia.
> 
> This was intended for the cranks.
> 

Sorry.

The typical crank ill assume that it's true, and then use that fact to 
prove that it's true.

Sylvia.

Thread

Since several claim to be so smart whodat <whodaat@void.nowgre.com> - 2021-11-17 18:59 -0600
  Re: Since several claim to be so smart Sylvia Else <sylvia@email.invalid> - 2021-11-18 12:37 +1100
    Re: Since several claim to be so smart whodat <whodaat@void.nowgre.com> - 2021-11-17 20:05 -0600
      Re: Since several claim to be so smart Sylvia Else <sylvia@email.invalid> - 2021-11-18 15:15 +1100
        Objective reality is unobtainable. Jeff-Relf.Me  @. - 2021-11-17 22:40 -0800
          Re: Objective reality is unobtainable. whodat <whodaat@void.nowgre.com> - 2021-11-18 05:34 -0600
    Re: Since several claim to be so smart James McGinn <jimmcginn9@gmail.com> - 2021-11-17 19:07 -0800
      Re: Since several claim to be so smart Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-17 20:15 -0800
        Re: Since several claim to be so smart James McGinn <jimmcginn9@gmail.com> - 2021-11-17 20:52 -0800
          Re: Since several claim to be so smart Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-17 21:10 -0800
            Re: Since several claim to be so smart James McGinn <jimmcginn9@gmail.com> - 2021-11-17 21:21 -0800
              Re: Since several claim to be so smart Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 09:36 -0800
            Re: Since several claim to be so smart Serg io <invalid@invalid.com> - 2021-11-18 08:57 -0600
              Re: Since several claim to be so smart Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 09:37 -0800
    Not So Fast, Pilgrim (was Re: Since several claim to be so smart) whodat <whodaat@void.nowgre.com> - 2021-11-17 22:36 -0600
      Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-17 21:19 -0800
        Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 09:38 -0800
          Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 09:58 -0800
            Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 10:26 -0800
            Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 10:32 -0800
              Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 10:52 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 11:05 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 12:27 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 12:37 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 15:14 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-18 15:23 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 23:08 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 06:40 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-19 07:19 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 07:36 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Claudius Denk <claudiusdenk@gmail.com> - 2021-11-19 08:37 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 08:53 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-19 10:20 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Claudius Denk <claudiusdenk@gmail.com> - 2021-11-19 13:21 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 13:36 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-19 15:33 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 16:24 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Solving Tornadoes <solvingtornadoes@gmail.com> - 2021-11-19 16:42 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-19 17:40 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-20 17:55 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-20 18:29 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-20 18:32 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-20 19:12 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-20 19:18 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-20 20:16 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Paul Alsing <pnalsing@gmail.com> - 2021-11-20 21:58 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-21 09:33 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-21 10:21 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-21 12:05 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Jim Pennino <jimp@gonzo.specsol.net> - 2021-11-21 13:23 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Serg io <invalid@invalid.com> - 2021-11-20 21:49 -0600
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Paul Alsing <pnalsing@gmail.com> - 2021-11-19 12:20 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-11-19 01:41 -0500
      Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Sylvia Else <sylvia@email.invalid> - 2021-11-18 16:58 +1100
        Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) whodat <whodaat@void.nowgre.com> - 2021-11-18 05:29 -0600
          Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Sylvia Else <sylvia@email.invalid> - 2021-11-18 23:51 +1100
            Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) whodat <whodaat@void.nowgre.com> - 2021-11-18 09:52 -0600
              Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) James McGinn <jimmcginn9@gmail.com> - 2021-11-18 08:42 -0800
                Re: Not So Fast, Pilgrim (was Re: Since several claim to be so smart) Sylvia Else <sylvia@email.invalid> - 2021-11-20 11:52 +1100
  Re: Since several claim to be so smart "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2021-11-21 12:10 -0800

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