Re: Olcott's replacement of symbolic logic with correct reasoning

From	olcott <polcott333@gmail.com>
Newsgroups	comp.theory, sci.logic, sci.math
Subject	Re: Olcott's replacement of symbolic logic with correct reasoning
Date	2026-07-10 12:28 -0500
Organization	A noiseless patient Spider
Message-ID	<112ra3t$1dqo7$1@dont-email.me> (permalink)
References	(9 earlier) <112r0tn$1aad1$1@dont-email.me> <112r2b0$1aus5$1@dont-email.me> <112r4pq$1b8g4$1@dont-email.me> <112r5g0$1c5qq$1@dont-email.me> <112r8iq$vk2$1@news.muc.de>

Cross-posted to 3 groups.

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On 7/10/2026 12:02 PM, Alan Mackenzie wrote:
> [ Followup-To: set ]
> 
> In comp.theory olcott <polcott333@gmail.com> wrote:
>> On 7/10/2026 10:57 AM, André G. Isaak wrote:
>>> On 2026-07-10 09:15, olcott wrote:
>>>> On 7/10/2026 9:51 AM, André G. Isaak wrote:
>>>>> On 2026-07-10 07:36, olcott wrote:
> 
> [ .... ]
> 
>>>>>> The list of every "atomic fact" of general knowledge
>>>>>> and the semantic relations between these facts specified
>>>>>> syntactically says EVERYTHING about nature.
> 
>>>>> What you've done is created a *model*. The extent to which that model
>>>>> corresponds to nature is an empirical question which is outside the
>>>>> scope of the model itself.
> 
>>>>> André
> 
> 
>>>> Not quite. The "basic facts" of the world are fully
>>>> integrated into the formal system and its formal
>>>> language. In such a system the Principle of Explosion
>>>> cannot possibly work.
> 
>>> You seem to be responding to some other post since my post didn't even
>>> mention the POE.
> 
>> A concrete example of the new total to the thread
>> Olcott's replacement of symbolic logic with correct reasoning
> 
> Symbolic logic is correct reasoning.  I think what you mean is you're
> replacing, in your own private world, symbolic logic with incorrect
> reasoning.
> 
>>> My point was that what you refer to as 'basic facts'
>>> are simply a model, and whether those 'basic facts' correspond to
>>> reality is an empirical question. Logic doesn't address empirical
>>> questions.
> 
> 
>> It is not merely a model of model theory when it is
>> fully integrated into the formal system and thus not
>> a separate thing outside of the formal system.
> 
>>>> When we only have a system of interconnected semantic
>>>> meanings that we traverse then incorrect reasoning is
>>>> inherently impossible.
> 
>>> No idea what that's supposed to mean.
> 
> 
>> It is the most succinct summation of my whole system.
>> It means exactly what it says. If you don't know what
>> each word means then you can't get it.
> 
> It's just vague meaningless nonsense.  As a hint, you should construct
> English language sentences mainly out of short words.  Other languages
> (such as German) are different.  When you say things like "system of
> interconnected semantic meanings", it's without clear meaning.
> 

"system of interconnected semantic meanings"
Summing up 28 years worth of work in less than
a sentence will be hard to understand.

>>>> P = "The Moon is made from green cheese"
>>>> Q = "Donald Trump is the Lord and Savior Jesus Christ"
>>>> The POE says that (P ∧ ¬P) ⊢ Q
> 
>>>> My system requires that the meaning of the words
>>>> of P semantically entails Q. The above meanings
>>>> are unrelated thus there is no proof.
> 
>>> On my definition of 'semantically entails' (P ∧ ¬P) does semantically
>>> entail Q in this example.
> 
>> What details about the composition of the Moon
>> are semantically relevant to anything about Trump?
> 
> None, but that doesn't matter.

When the ONLY inference step is semantic entailment
then the principle of explosion becomes impossible.

>   What's important is the inevitable proof
> of the principle of explosion from a contradiction.  If that doesn't
> happen in your so-called "correct reasoning", that that system is wrong.
> 
>>> You've refused to clarify what *you* mean by
>>> 'semantically entails'
> 
>> I only ever mean what the actual words actually mean.
> 
> No.  You've put a lot of effort into keeping "semantically entails" as
> confused and meaningless as possible.  What I think you mean is
> "logically follows from".  That's not a new idea by any means.
> 
>> Base meaning is the most basic and common meaning of the
>> English word from a dictionary. This is often the first
>> listing.
> 
> The meaning that matters is that agreed upon and used by expert
> practitioners in the field.  

There are no experts in the field of a dictionary
definition of a word, there is only the dictionary
definition.

semantic (adjective)
of or relating to meaning in language
https://www.merriam-webster.com/dictionary/semantic

entail (verb)
to cause or involve by necessity or as a consequence.
https://www.dictionary.com/browse/entail

[semantically entail] is the above semantic + entail.

meaning in language that causes a necessary consequence

-- 
Copyright 2026 Olcott

My 28 year goal has been to make
"true on the basis of meaning expressed in language"
reliably computable for the entire body of general knowledge.
The complete structure of this system is now defined.

The entire body of knowledge expressed in language is
comprised of two types of relations between finite strings:
(a) *Axioms* Expressions of language that are stipulated to be true.

My system bridges the analytic/synthetic distinction by
expressly encoding all empirical "atomic facts" in a formal
language such as CycL of the Cyc project.

(b) *Inference Rules* Expressions of language that are semantically
entailed syntactically from (a) and/or (b).

Thread

Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-06 10:15 -0500
  Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-08 10:24 +0300
    Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-08 15:26 -0500
      Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-09 10:34 +0300
        Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 09:36 -0500
          Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 08:52 -0700
            Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 11:22 -0500
              Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-09 16:41 +0000
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 12:02 -0500
                Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-09 17:23 +0000
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 12:35 -0500
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 13:05 -0500
                Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-09 19:16 +0000
                Re: Olcott's big correction to symbolic logic "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-07-09 13:08 -0700
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 15:49 -0500
                Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-10 10:02 +0000
                Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 09:12 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-11 10:35 +0300
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-11 19:49 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-12 11:23 +0300
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-12 11:00 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-13 10:04 +0300
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-13 11:19 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning dbush <dbush.mobile@gmail.com> - 2026-07-13 15:34 -0400
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-14 10:44 +0300
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-14 13:47 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-15 11:34 +0300
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning olcott <polcott333@gmail.com> - 2026-07-15 11:11 -0500
                Re: Utterly replacing ALL symbolic logic with inherently correct reasoning Mikko <mikko.levanto@iki.fi> - 2026-07-16 09:33 +0300
              Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 12:56 -0700
                Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 13:40 -0700
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 16:05 -0500
          Re: Olcott's big correction to symbolic logic André G. Isaak <agisaak@gm.invalid> - 2026-07-09 14:15 -0600
            Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 13:37 -0700
              Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 16:02 -0500
                Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 14:04 -0700
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 16:08 -0500
                Re: Olcott's big correction to symbolic logic Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-09 18:55 -0700
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 22:12 -0500
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-10 00:08 -0500
                Re: Olcott's big correction to symbolic logic "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-07-10 16:46 -0700
                Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-09 21:14 +0000
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 17:02 -0500
              Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-10 00:14 -0500
            Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-09 15:58 -0500
              Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-10 10:37 +0300
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-10 08:36 -0500
                Re: Olcott's big correction to symbolic logic André G. Isaak <agisaak@gm.invalid> - 2026-07-10 08:51 -0600
                Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 10:15 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 09:57 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 11:09 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning Alan Mackenzie <acm@muc.de> - 2026-07-10 17:02 +0000
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 12:28 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 12:12 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning Alan Mackenzie <acm@muc.de> - 2026-07-10 18:27 +0000
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 13:57 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 13:11 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 14:33 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 14:52 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 16:17 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2026-07-10 16:50 -0700
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 13:45 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 11:16 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 12:36 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 12:06 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 13:35 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 13:07 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 14:30 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 14:46 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 16:09 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning Alan Mackenzie <acm@muc.de> - 2026-07-10 21:32 +0000
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 16:45 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-10 16:44 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-10 23:59 -0500
                Re: Olcott's replacement of symbolic logic with correct reasoning André G. Isaak <agisaak@gm.invalid> - 2026-07-11 06:33 -0600
                Re: Olcott's replacement of symbolic logic with correct reasoning olcott <polcott333@gmail.com> - 2026-07-11 20:08 -0500
                Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-11 10:45 +0300
                Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-11 19:52 -0500
          Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-10 10:52 +0300
            Semantic Entailment --- Principle of compositionality applied to base terms olcott <polcott333@gmail.com> - 2026-07-10 09:05 -0500
              Re: Semantic Entailment --- Principle of compositionality applied to base terms Mikko <mikko.levanto@iki.fi> - 2026-07-11 11:08 +0300
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-11 20:00 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term Mikko <mikko.levanto@iki.fi> - 2026-07-12 12:15 +0300
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-12 11:10 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term Mikko <mikko.levanto@iki.fi> - 2026-07-13 10:08 +0300
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-13 11:25 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-13 11:52 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2026-07-14 16:49 +0100
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 12:20 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 11:27 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 13:08 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 12:27 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 14:57 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-14 16:10 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 14:28 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 15:38 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-14 16:51 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 16:08 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-14 17:18 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-14 22:02 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 15:04 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 16:11 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 15:32 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 16:35 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 16:13 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 17:20 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 16:46 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 17:56 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 17:02 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 19:33 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 18:42 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 20:23 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 19:38 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 20:56 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term André G. Isaak <agisaak@gm.invalid> - 2026-07-14 20:23 -0600
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 21:38 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-14 15:31 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2026-07-15 20:38 +0100
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-15 15:44 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term dbush <dbush.mobile@gmail.com> - 2026-07-15 16:53 -0400
                Re: Semantic Entailment --- Principle of compositionality applied to base term Mikko <mikko.levanto@iki.fi> - 2026-07-14 10:51 +0300
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 14:09 -0500
                Re: Semantic Entailment --- Principle of compositionality applied to base term Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2026-07-14 11:12 +0100
                Re: Semantic Entailment --- Principle of compositionality applied to base term olcott <polcott333@gmail.com> - 2026-07-14 11:50 -0500
              Re: Semantic Entailment --- Principle of compositionality applied to base terms Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2026-07-14 16:52 +0100
                Re: Semantic Entailment --- Principle of compositionality applied to base terms olcott <polcott333@gmail.com> - 2026-07-14 12:23 -0500
  Re: Olcott's big correction to symbolic logic Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2026-07-14 16:12 +0100
    Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-14 12:09 -0500
      Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-15 12:07 +0300
        Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-15 11:18 -0500
          Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-15 19:21 +0000
            Re: Olcott's big correction to symbolic logic olcott <polcott333@gmail.com> - 2026-07-15 15:01 -0500
              Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-16 09:52 +0300
              Re: Olcott's big correction to symbolic logic Alan Mackenzie <acm@muc.de> - 2026-07-16 13:54 +0000
                Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-17 09:25 +0300
          Re: Olcott's big correction to symbolic logic Mikko <mikko.levanto@iki.fi> - 2026-07-16 09:47 +0300

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