Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.math > #414844

Re: Triangles and predicates

Newsgroups sci.math
Date 2018-06-06 13:31 -0700
References (7 earlier) <pf6ur4$j6r$2@dont-email.me> <11f58486-e2ba-4934-b503-cc40737c5619@googlegroups.com> <pf8k7h$kk0$1@dont-email.me> <637e29b6-1d1b-49b9-ac10-7d5d3781ba29@googlegroups.com> <pf9dbq$73r$1@dont-email.me>
Message-ID <955ea273-69fa-4148-bbbd-4e41b65ec55e@googlegroups.com> (permalink)
Subject Re: Triangles and predicates
From mlwozniak@wp.pl

Show all headers | View raw

On Wednesday, 6 June 2018 21:40:49 UTC+2, Shobe, Martin  wrote:
> On 6/6/2018 8:44 AM, mlwozniak@wp.pl wrote:
> > On Wednesday, 6 June 2018 14:31:53 UTC+2, Shobe, Martin  wrote:
> >> On 6/5/2018 11:16 PM, mlwozniak@wp.pl wrote:
> >>> On Tuesday, 5 June 2018 23:20:41 UTC+2, Shobe, Martin  wrote:
> >>>> On 6/5/2018 8:09 AM, mlwozniak@wp.pl wrote:
> >>>>> On Tuesday, 5 June 2018 14:44:48 UTC+2, Shobe, Martin  wrote:
> >>>>>> On 6/4/2018 8:47 AM, mlwozniak@wp.pl wrote:
> >>>>>>> On Monday, 4 June 2018 15:35:36 UTC+2, Shobe, Martin  wrote:
> >>>>>>>> On 6/3/2018 7:03 AM, mlwozniak@wp.pl wrote:
> >>>>>>>>> On Sunday, 3 June 2018 12:36:59 UTC+2, Jim Burns  wrote:
> >>>>>>>>>
> >>>>>>>>>> Of course, then Peano arithmetic won't be Peano arithmetic
> >>>>>>>>>
> >>>>>>>>> Take a look on a spherical triangle. That's all the wisdom:
> >>>>>>>>> It WASN'T a triangle, but now it IS a triangle, so the sum
> >>>>>>>>> of angles now may be >180.
> >>>>>>>>> The rules in metatheory are the same.
> >>>>>>>>>
> >>>>>>>>
> >>>>>>>> You have the history wrong.
> >>>>>>>
> >>>>>>> No. You have it wrong.
> >>>>>>>
> >>>>>>>> A better example for what you want would be the fact that at one point,
> >>>>>>>> 1, was considered a prime. Sometimes definition change.
> >>>>>>>
> >>>>>>> Right. So, let's return to the subject.
> >>>>>>> What do you think is easier to change? The sum of angles
> >>>>>>> in a triangle or that's something is "correct"?
> >>>>>>
> >>>>>> Neither. In both cases, there's nothing that can be meaningfully changed.
> >>>>>
> >>>>> What the hell are you talking about?
> >>>>> As long as Euclid ruled, the sum of angles in a triangle
> >>>>>     was always 180. Now it is not. Nothing was changed?
> >>>>
> >>>> I didn't say nothing had changed. However, none of the things that
> >>>> changed where the sum of angles in a triangle (180 for Euclidean, > 180
> >>>> for spherical, and < 180 for hyperbolic) or what's correct.
> >>>
> >>> And, of course, that's because UUUUU!!!!UUUUU!!!!
> >>> UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU!!!
> >>
> >> Are you having a stroke?
> > 
> > No.
> >   
> >>>>>>>> But note, by
> >>>>>>>> today's definition of prime, there was never a point where 1 was a prime
> >>>>>>>> and by the old definition of prime, there will never be a point where 1
> >>>>>>>> wasn't a prime.
> >>>>>>>
> >>>>>>> Still, 1 was a prime and now it isn't.
> >>>>>>> Tomorrow it can be again.
> >>>>>>>
> >>>>>>
> >>>>>> You're equivocating. "Prime" meant one thing at one time and another
> >>>>>> thing now.
> >>>>>
> >>>>> Things change. A mathematician can be surprised. Not me.
> >>>>
> >>>> To be surprised, one has to be aware.
> >>>>
> >>>>>> There was never a time that 1 was a prime given the current
> >>>>>> meaning prime.
> >>>>>
> >>>>> Of course theyre was a time 1 was prime given the
> >>>>> current meaning prime.
> >>>>
> >>>> No there was not.
> >>>
> >>> Yes there was.
> >>>
> >>
> >> Evidence?
> > 
> > After yours?
> > 
> 
> Evidence of what? That some considered 1 a prime?
> 
> "This begins to change when Stevin showed how to calculate with decimal
> real numbers in 1585, bringing on a confused period in which some held 
> unity to be a prime and others did not."[1]
> 
> That by the current definition of prime, 1 isn't a prime?
> 
> A prime number (or prime integer, often simply called a "prime" for 
> short) is a positive integer p>1 that has no positive integer divisors 
> other than 1 and p itself.[2]
> 
> Clearly 1 is not greater than 1, so 1 is not a prime.

Unfortunately, there was a time when current definition 
was different. So, of course there was a time 1 was prime 
given the current meaning prime.

Back to sci.math | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Triangles and predicates mlwozniak@wp.pl - 2018-06-02 21:41 -0700
  Re: Triangles and predicates Jim Burns <james.g.burns@att.net> - 2018-06-03 06:36 -0400
    Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-03 03:48 -0700
      Re: Triangles and predicates moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-06-04 14:00 +0000
        Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-04 09:20 -0700
    Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-03 05:03 -0700
      Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-04 08:35 -0500
        Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-04 06:47 -0700
          Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-05 07:44 -0500
            Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-05 06:09 -0700
              Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-05 16:20 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-05 21:16 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-06 07:31 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-06 06:44 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-06 14:40 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-06 13:31 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-06 15:53 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-06 21:01 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-06 22:36 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-06 23:17 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-06 23:56 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 00:12 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-07 04:46 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-07 07:20 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 05:28 -0700
                Re: Triangles and predicates "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-06-07 10:10 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-07 16:28 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 21:30 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-08 07:38 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 05:50 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-08 16:33 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 21:46 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-10 16:59 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-10 21:35 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-11 05:49 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-11 03:58 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-11 04:15 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-11 04:26 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-14 23:14 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-14 23:57 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-15 00:24 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 03:02 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-15 03:13 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 03:25 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-15 03:44 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 04:09 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-15 04:37 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 04:43 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-15 05:48 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 05:51 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-17 23:56 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-18 00:23 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-18 04:00 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-18 09:29 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-19 23:26 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-20 00:55 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-20 23:31 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-20 23:49 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-20 23:57 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-21 00:08 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-21 01:34 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-21 02:14 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-24 22:51 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-25 01:05 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-25 23:09 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-26 00:59 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-26 23:08 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-26 23:32 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-26 23:49 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-27 01:37 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-27 03:29 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-11 20:30 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-11 21:20 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-12 18:32 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-12 21:35 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-14 07:12 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-14 09:10 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-14 16:55 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-14 21:27 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-15 19:01 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-15 20:57 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-17 14:52 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-17 21:29 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-18 19:11 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-18 21:28 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-19 18:57 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-19 22:14 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-20 18:31 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-20 21:29 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-20 23:32 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-20 23:50 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-21 07:15 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-21 05:38 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-21 16:15 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-21 21:22 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-22 18:57 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-22 21:49 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-23 07:41 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-23 07:59 -0700
                Re: Triangles and predicates "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-06-21 09:44 -0700
                Re: Triangles and predicates "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-06-21 10:02 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-07 07:19 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 05:28 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-07 16:30 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 21:36 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-07 22:49 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-07 23:20 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-08 00:05 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 00:35 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-10 21:39 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-08 07:39 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 05:54 -0700
                Re: Triangles and predicates moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-06-08 13:33 +0000
                Re: Triangles and predicates Python <python@python.invalid> - 2018-06-08 15:37 +0200
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 06:44 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 06:43 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-08 16:35 -0500
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-08 16:41 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-08 21:51 -0700
                Re: Triangles and predicates "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-06-09 10:05 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-10 06:48 -0700
                Re: Triangles and predicates "Shobe, Martin" <martin.shobe@yahoo.com> - 2018-06-10 17:02 -0500
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-10 21:39 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-11 03:09 -0700
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-11 03:56 -0700
                Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-11 04:13 -0700
                Re: Triangles and predicates Volney <volney@volney.invalid> - 2018-06-11 08:08 -0400
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-11 05:16 -0700
                Re: Triangles and predicates Python <python@example.invalid> - 2018-06-06 23:05 +0200
                Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-06 21:03 -0700
          Re: Triangles and predicates Zelos Malum <zelos.malum@gmail.com> - 2018-06-06 22:36 -0700
    Re: Triangles and predicates "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-06-04 13:31 -0700
  Re: Triangles and predicates "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-06-25 23:41 -0700
    Re: Triangles and predicates mlwozniak@wp.pl - 2018-06-26 01:00 -0700

csiph-web