Re: Truthmaker Maximalism and undecidable decision problems

Liste des GroupesRevenir à s logic 
Sujet : Re: Truthmaker Maximalism and undecidable decision problems
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.theory
Date : 10. Jun 2024, 16:43:34
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v473en$ggn5$3@dont-email.me>
References : 1 2 3 4 5 6 7
User-Agent : Mozilla Thunderbird
On 6/10/2024 2:13 AM, Mikko wrote:
On 2024-06-09 18:40:16 +0000, olcott said:
 
On 6/9/2024 1:29 PM, Richard Damon wrote:
On 6/9/24 2:13 PM, olcott wrote:
On 6/9/2024 1:08 PM, Richard Damon wrote:
On 6/9/24 1:18 PM, olcott wrote:
On 6/9/2024 10:36 AM, olcott wrote:
*This has direct application to undecidable decision problems*
>
When we ask the question: What is a truthmaker? The generic answer is
whatever makes an expression of language true <is> its truthmaker. This
entails that if there is nothing in the universe that makes expression X
true then X lacks a truthmaker and is untrue.
>
X may be untrue because X is false. In that case ~X has a truthmaker.
Now we have the means to unequivocally define truth-bearer. X is a
truth-bearer iff (if and only if) X or ~X has a truthmaker.
>
I have been working in this same area as a non-academician for a few
years. I have only focused on expressions of language that are {true on
the basis of their meaning}.
>
>
Now that truthmaker and truthbearer are fully anchored it is easy to see
that self-contradictory expressions are simply not truthbearers.
>
“This sentence is not true” can't be true because that would make it
untrue and it can't be false because that would make it true.
>
Within the the definition of truthmaker specified above: “this sentence
has no truthmaker” is simply not a truthbearer. It can't be true within
the above specified definition of truthmaker because this would make it
false. It can't be false because that makes
it true.
>
>
>
Unless the system is inconsistent, in which case they can be.
>
Note,
>
When I specify the ultimate foundation of all truth then this
does apply to truth in logic, truth in math and truth in science.
>
Nope. Not for Formal system, which have a specific definition of its truth-makers, unless you let your definition become trivial for Formal logic where a "truth-makers" is what has been defined to be the "truth-makers" for the system.
>
>
Formal systems are free to define their own truthmakers.
When these definitions result in inconsistency they are
proved to be incorrect.
 A formal system can be inconsistent without being incorrect.
*Three laws of logic apply to all propositions*
¬(p ∧ ¬p) Law of non-contradiction
  (p ∨ ¬p) Law of excluded middle
   p = p   Law of identity
*No it cannot*
People are free to stipulate the value of PI as exactly
3.0 and they are simply wrong.
*Three valued logic is simply not the way that reality really works*

If you call something "incorrect" without a proof then it
is only an insignificant opinion.
 
--
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer

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