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On 4/3/2025 6:15 AM, Richard Damon wrote:So, what is the ERROR?On 4/2/25 11:37 PM, olcott wrote:<DIRECT QUOTE>On 4/2/2025 10:13 PM, Richard Damon wrote:>On 4/2/25 10:59 PM, olcott wrote:>On 4/2/2025 9:00 PM, Richard Damon wrote:>On 4/2/25 9:40 PM, olcott wrote:>On 4/2/2025 5:09 PM, Richard Damon wrote:>On 4/2/25 12:05 PM, olcott wrote:>On 4/2/2025 4:43 AM, Mikko wrote:>On 2025-04-01 18:00:56 +0000, olcott said:>
>On 4/1/2025 1:36 AM, Mikko wrote:>On 2025-03-31 18:29:32 +0000, olcott said:>
>On 3/31/2025 4:04 AM, Mikko wrote:>On 2025-03-30 11:20:05 +0000, olcott said:>
>
You have never expressed any disagreement with the starting points of
Tarski's proof. You have ever claimed that any of Tarski's inferences
were not truth preserving. But you have claimed that the last one of
these truth preservin transformation has produced a false conclusion.
>
It is ALWAYS IMPOSSIBLE to specify True(X) ∧ ~Provable(X)
(what Tarski proved) when-so-ever True(X) ≡ Provable(X).
https://liarparadox.org/Tarski_275_276.pdf
Tarski's proof was not about provability. Gödel had already proved
that there are unprovable true sentences. Tarski's work is about
definability.
https://liarparadox.org/Tarski_275_276.pdf
Step (3) is self-contradictory, thus his whole proof fails.
Irrelevant. As Traski clearly points out, (3) can be derived from (1) and
(2) with a truth preserving transformation.
>
(3) is false, thus his whole proof is dead.
>
And if (3) is false, then one of (1) or (2) must be false,
(1) is merely a false assumption that stands on its own.
No, (1) is the result of a previous proof.
>
Prove that. I can prove otherwise. PUT UP OR SHUT UP
>
The paragraph before that he says:
>In accordance with the first>
part of Th. I we can obtain ...
That shows that he is building that statement from his previous proof.
>
So, prove him wrong or PUT UP OR SHUT UP.
I merely have to prove that you are wrong
about deriving (1) from truth preserving operations.
https://liarparadox.org/Tarski_247_248.pdf
>
So, you can't read the article you post?
>
THEOREM I. (α) In whatever way the symbol 'Tr', denoting a
class of expressions, is defined in the metatheory, it will be possible
to derive from it the negation of one of the sentences which were
described in the condition (α) of the convention T;
(β) assuming that the class of all provable sentences of the metatheory
is consistent, it is impossible to construct an adequate
definition of truth in the sense of convention T on the basis of the
metatheory. ...
Should we succeed in constructing in the metalanguage
a correct definition of truth, then ...
It would
then be possible to reconstruct the antinomy of the liar in the
metalanguage, by forming in the language itself a sentence x
such that the sentence of the metalanguage which is correlated
with x asserts that x is not a true sentence.
</DIRECT QUOTE>
https://liarparadox.org/Tarski_247_248.pdf
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