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Re: Why predictions about the future have no truth value

Newsgroups sci.logic
Date 2023-06-27 10:48 -0700
References (70 earlier) <3529bb20-4a1b-4be6-a651-c76b4321cc79n@googlegroups.com> <14d7ac25-92e3-47b0-8a48-7c77f3a36db3n@googlegroups.com> <163f9779-7476-4549-9044-b44e14bff381n@googlegroups.com> <c0bea589-2860-4b52-bdc9-2550c847a8fan@googlegroups.com> <89358b03-af23-4da3-8027-11d77b4966b6n@googlegroups.com>
Message-ID <a498f600-7d35-49f3-b7fd-2c5d7b6e0e13n@googlegroups.com> (permalink)
Subject Re: Why predictions about the future have no truth value
From Dan Christensen <Dan_Christensen@sympatico.ca>

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On Tuesday, June 27, 2023 at 10:55:54 AM UTC-4, Dan Christensen wrote:
> On Tuesday, June 27, 2023 at 7:15:12 AM UTC-4, Mild Shock wrote: 
> 
> > Dan Christensen schrieb am Montag, 26. Juni 2023 um 21:36:16 UTC+2: 
> > > 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."
> > Its irrelevant Mark Thakkar and Dummett do not discuss
> > propositional logic versus first order logic in the technical 
> > sense, as you use these two words.
> He wrote, “My principal argument for the claim that statements about the future have no truth-values is that otherwise they would have the standard entailments of propositional logic." 
> 
> This quote was inspired me to start this thread.
> > For them they 
> > 
> > have only english, and this sentence: 
> > 
> > "It will rain tomorrow." 
> >
> [snip] 
> 
> Thanks for confirming that you this cannot formalize this statement using only classical propositional logic. 
> 
> Using FOL and set theory, you might use: 
> 
> A partial list of axioms for the integers: 
> 
> z is the set of integers 
> 
> 1. Set(z) 
> Axiom 
> 
> Define constants 0 and 1 in z 
> 
> 2. 0 in z 
> Axiom 
> 
> 3. 1 in z 
> Axiom 
> 
> Define addition on z 
> 
> 4. ALL(a):ALL(b):[a in z & b in z => a+b in z] 
> Axiom 
> 
> 5. ALL(a):[a in z => a+0=a] 
> Axiom 
> 
> 6. ALL(a):ALL(b):[a in z & b in z => a+(b+1)=a+b+1] 
> Axiom 
> 

CORRECTION:

Today(x) means that today is day x for any integer x

7	ALL(a):[a in z => Today(a) | ~Today(a)]
	Axiom

Rain(x) means it rains on day x for any integer x

8	ALL(a):[a in z => Rain(a) | ~Rain(a)]
	Axiom

Suppose it rains tomorrow (a premise, NOT an axiom)

9	x in z & Today(x) & Rain(x+1)
	Premise

Dan

Download my DC Proof 2.0 freeware at http://www.dcproof.com
Visit my Math Blog at http://www.dcproof.wordpress.com

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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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