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Re: Why predictions about the future have no truth value

Newsgroups sci.logic
Date 2023-06-26 20:32 -0700
References (69 earlier) <026e9c93-02f1-41b3-945c-a1b96eb99d7an@googlegroups.com> <3529bb20-4a1b-4be6-a651-c76b4321cc79n@googlegroups.com> <14d7ac25-92e3-47b0-8a48-7c77f3a36db3n@googlegroups.com> <163f9779-7476-4549-9044-b44e14bff381n@googlegroups.com> <0a2d2544-9d43-4c33-a862-4ad2893d605fn@googlegroups.com>
Message-ID <d32f2110-2b9f-468d-9a3d-15a164c5c89an@googlegroups.com> (permalink)
Subject Re: Why predictions about the future have no truth value
From Ross Finlayson <ross.a.finlayson@gmail.com>

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On Monday, June 26, 2023 at 6:43:12 PM UTC-7, Dan Christensen wrote:
> On Monday, June 26, 2023 at 3:36:16 PM UTC-4, Dan Christensen wrote: 
> > On Monday, June 26, 2023 at 1:40:54 PM UTC-4, Mild Shock (aka Mr. Collapse) wrote: 
> > 
> > > [snip childish abuse] 
> > 
> > Using ONLY propositional logic (no predicates or quantifiers), please tell us, Mr. Collapse, how you would formalize: "It will rain tomorrow."
> You could measure time in an integer number of days. For any day x, Rain(x) can be taken to mean, "It rains on day x." Suppose today is day y. Then Rain(y+1) can be taken to mean, "It rains on the day after day y.' 
> 
> You could, that is, if you were allowed to use predicates and quantifies, among other things like integers and addition.
> Dan 
> 
> Download my DC Proof 2.0 freeware at http://www.dcproof.com 
> Visit my Math Blog at http://www.dcproof.wordpress.com

You mean PREDICATES and QUANTIFIES?

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Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-17 12:14 -0700
  Re: Why predictions about the future have no truth value Jim Burns <james.g.burns@att.net> - 2023-06-17 18:01 -0400
    Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-17 20:09 -0700
      Re: Why predictions about the future have no truth value Jim Burns <james.g.burns@att.net> - 2023-06-18 00:58 -0400
      Re: Why predictions about the future have no truth value Jim Burns <james.g.burns@att.net> - 2023-06-18 02:23 -0400
        Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 06:10 -0700
          Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 06:20 -0700
            Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 06:29 -0700
          Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 08:03 -0700
            Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 09:10 -0700
              Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 09:27 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 09:43 -0700
              Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 10:36 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 11:05 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 11:08 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 12:35 -0700
                Re: Why predictions about the future have no truth value Mild Shock <janburse@fastmail.fm> - 2023-06-18 23:32 +0200
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 14:42 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 15:09 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:24 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:35 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:40 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:47 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:49 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 15:59 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-18 16:03 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 18:53 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 01:20 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 01:31 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 01:38 -0700
                Re: Why predictions about the future have no truth value Jim Burns <james.g.burns@att.net> - 2023-06-19 11:14 -0400
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-19 06:44 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 07:23 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 07:35 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-19 07:51 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 08:32 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 15:08 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-19 19:42 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-19 22:31 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 23:22 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 23:28 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-19 23:33 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-20 07:59 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-20 08:15 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-20 08:18 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-20 12:28 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-20 12:40 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-20 13:02 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-20 15:33 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-20 20:03 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-20 21:16 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-20 21:39 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-20 23:03 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 00:50 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 06:31 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 08:43 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 08:54 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 09:10 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 09:11 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 09:12 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 09:14 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 09:14 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 09:25 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 09:30 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 09:37 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 09:41 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 10:43 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 11:13 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 11:49 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-21 13:11 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 22:00 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-21 22:12 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 22:27 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-21 22:34 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 02:59 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 03:14 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 03:19 -0700
                Re: Why predictions about the future have no truth value Julio Di Egidio <julio@diegidio.name> - 2023-06-22 03:20 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 04:09 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 04:13 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 04:21 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-22 08:28 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-22 08:59 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-22 13:42 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-24 09:49 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-24 11:14 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 09:30 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 15:34 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-25 16:05 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-25 16:29 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-25 16:34 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 19:29 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 19:32 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-25 21:20 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 22:42 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 00:17 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 00:28 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 00:34 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 00:41 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 09:31 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 10:40 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-26 10:58 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 12:36 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 17:27 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 18:21 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 18:43 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-26 20:32 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-26 21:13 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-26 21:36 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-26 22:14 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 04:15 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 04:27 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 07:55 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 09:49 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 09:57 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 10:25 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 10:39 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 10:48 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 10:57 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 11:11 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 11:20 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 11:24 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 12:05 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 12:18 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 12:26 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 12:33 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 12:53 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 12:55 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 13:02 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 13:12 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 13:35 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 13:45 -0700
                Re: Why predictions about the future have no truth value Daniel Pehoushek <pehoushek1@gmail.com> - 2023-06-27 14:10 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 14:16 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 14:39 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 15:48 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-27 16:02 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-27 16:54 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-28 20:37 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-07-02 15:37 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-07-02 17:49 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-07-03 04:04 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-25 19:16 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 23:40 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-22 23:51 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 00:05 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 08:58 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 09:49 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 10:12 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 10:19 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 10:30 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 11:20 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 13:57 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 14:16 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 14:20 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 14:26 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 14:37 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 14:55 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 15:03 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 15:08 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 15:12 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 15:28 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-23 15:54 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 17:14 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 17:19 -0700
                Re: Why predictions about the future have no truth value Mild Shock <bursejan@gmail.com> - 2023-06-23 17:29 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-20 15:22 -0700
                Re: Why predictions about the future have no truth value Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-06-20 11:37 -0700
                Re: Why predictions about the future have no truth value Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-06-18 15:40 -0700

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