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| From | Mostowski Collapse <janburse@fastmail.fm> |
|---|---|
| Newsgroups | sci.logic |
| Subject | Re: Smullyan's Proof of the Drinkers Principle V3 |
| Date | 2023-05-04 20:19 +0200 |
| Message-ID | <u30suu$5b03$1@solani.org> (permalink) |
| References | <c100517c-4b7c-4e83-86ef-02ce3e336698n@googlegroups.com> <876183de-e906-40cb-9a2a-4bcc45ded451n@googlegroups.com> |
Dang you are dumb, Dan-O-Matik, you even don't know what Naive and Non-Naive Comprehension is? And how Russell made Frege stumble? Did you even go to school? It seems you don't understand what is Naive and what not. Here again in example of the subset axiom. Its also naive if you use Set(_): Naive [the b in x is missing] 1 Set(x) Axiom 2 EXIST(a):[Set(a) & ALL(b):[b in a <=> P(b)]] Subset, 1 Non-Naive [the b in x is there] 1 Set(x) Axiom 2 EXIST(a):[Set(a) & ALL(b):[b in a <=> b in x & P(b)]] Subset, 1 I am not objecting that you use Set(_). Why do you think the usage of Set(_) is problematic? Where did I say that. The Naive thing is using Set(_) only, and not an upper bound as well [the b in x is missing]. The Non-Naive thing is using Set(_) and an upper bound. [the b in x is there]. Now analyze this sentence by Terrence Tao: Exercise 10.3.5 from Analysis Vol.1 by Terence Tao. Give an example of a subset X⊂R and a function f:X→R which is differentiable on X, is such that f′(x)>0 for all x∈X, but f is not strictly monotone increasing. Does he say onle Set(X) or does he say more? Dan Christensen schrieb:> Wrong again, Mr. Collapse. > >> Do you think Terrence Tao would say, eh lets have a set Set(s)? >> > [snip] > > He has established that there are objects that are sets (e.g. the set of real numbers)) and some that are not (e.g. 4). If he was writing a formal proof using set theory, he would then have to formally indicate which objects are subject to the axioms of set theory (the sets). A predicate is a good way to do that. Mostowski Collapse schrieb: > With SET SPACES you cannot prove your "junk theorem". > > /* Junk Theorem Currently Provable */ > 28 ALL(s):[Set(s) => EXIST(a):~a e s] > Rem DNeg, 27 > http://www.dcproof.com/UniversalSet.htm > > if you for example replace Set(s) by s ∈ 𝒫(U). Then what > would go through in Coq with properly typing would amount to. > You need to type the existential quantifier: > > /* Junk Theorem Not Provable Anymore */ > ALL(s):[s ∈ 𝒫(U) => EXIST(a):[U(a) & ~a e s]] > > The above is not provable anymore. Sets s from 𝒫(U) > do not always have elements inside U that are outside > these sets. This is because we have that U ∈ 𝒫(U), > > which then violates the above theorem. So the > Junk Theorem is not anymore provable if you > use properly SET SPACES as mathematicians do > > one way or the other in most math books. Just > check out Terrence Tao what he writes. Or things > like sigma spaces in probability theory etc.. etc.. >
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Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-03 16:16 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-04 20:19 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-04 20:27 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-04 20:32 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-04 12:15 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 16:33 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 16:50 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-04 16:54 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 17:09 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 17:12 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-04 22:34 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-05 03:35 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-05 14:37 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-06 03:09 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-06 03:43 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-06 10:29 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-07 02:41 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-07 06:59 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-07 08:31 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-07 11:19 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-07 20:34 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-07 20:41 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-07 20:47 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-07 20:48 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-07 11:51 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-08 05:36 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-08 07:22 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-11 14:34 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-11 16:10 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-11 17:00 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <janburse@fastmail.fm> - 2023-05-12 12:04 +0200
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-12 03:13 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-12 07:12 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Dan Christensen <Dan_Christensen@sympatico.ca> - 2023-05-04 11:40 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 11:43 -0700
Re: Smullyan's Proof of the Drinkers Principle V3 Mostowski Collapse <bursejan@gmail.com> - 2023-05-04 11:49 -0700
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