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On 2024-08-29 13:36:00 +0000, olcott said:Quine atoms (named after Willard Van Orman Quine) are sets that only contain themselves, that is, sets that satisfy the formula x = {x}.
On 8/29/2024 3:12 AM, Mikko wrote:There is no need for an isomorphism between a set an a can of soup.On 2024-08-28 12:14:47 +0000, olcott said:>
>On 8/28/2024 2:45 AM, Mikko wrote:>On 2024-08-24 03:26:39 +0000, olcott said:>
>On 8/23/2024 3:34 AM, Mikko wrote:>On 2024-08-22 13:23:39 +0000, olcott said:>
>On 8/22/2024 7:06 AM, Mikko wrote:>On 2024-08-21 12:47:37 +0000, olcott said:>
>>>
Formal systems kind of sort of has some vague idea of what True
means. Tarski "proved" that there is no True(L,x) that can be
consistently defined.
https://en.wikipedia.org/wiki/ Tarski%27s_undefinability_theorem#General_form
>
*The defined predicate True(L,x) fixed that*
Unless expression x has a connection (through a sequence
of true preserving operations) in system F to its semantic
meanings expressed in language L of F then x is simply
untrue in F.
>
Whenever there is no sequence of truth preserving from
x or ~x to its meaning in L of F then x has no truth-maker
in F and x not a truth-bearer in F. We never get to x is
undecidable in F.
Tarski proved that True is undefineable in certain formal systems.
Your definition is not expressible in F, at least not as a definition.
>
Like ZFC redefined the foundation of all sets I redefine
the foundation of all formal systems.
You cannot redefine the foundation of all formal systems. Every formal
system has the foundation it has and that cannot be changed. Formal
systems are eternal and immutable.
>
Then According to your reasoning ZFC is wrong because
it is not allowed to redefine the foundation of set
theory.
It did not redefine anything. It is just another theory. It is called
a set theory because its terms have many similarities to Cnator's sets.
It <is> the correct set theory. Naive set theory
is tossed out on its ass for being WRONG.
There is no basis to say that ZF is more or less correct than ZFC.
A set containing itself has always been incoherent in its
isomorphism to the concrete instance of a can of soup so
totally containing itself that it has no outside surface.
The above words are my own unique creation.
There is nothing inherently incoherent in Quine's atom. Some set
theories allow it, some don't. Cantor's theory does not say either
way.
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