• =?UTF-8?Q?Re=3A_ZFC_solution_to_incorrect_questions=3A_reject_them_?= =

    From Richard Damon@21:1/5 to olcott on Fri Mar 15 11:50:54 2024
    On 3/15/24 7:28 AM, olcott wrote:
    On 2024-03-13 14:25:10 +0000, olcott said:

    On 3/13/2024 5:03 AM, Mikko wrote:
    On 2024-03-12 20:38:34 +0000, olcott said:

    On 3/12/2024 3:31 PM, immibis wrote:
    On 12/03/24 20:02, olcott wrote:
    On 3/12/2024 1:31 PM, immibis wrote:
    On 12/03/24 19:12, olcott wrote:
    ∀ H ∈ Turing_Machine_Deciders
    ∃ TMD ∈ Turing_Machine_Descriptions  |
    Predicted_Behavior(H, TMD) != Actual_Behavior(TMD)

    There is some input TMD to every H such that
    Predicted_Behavior(H, TMD) != Actual_Behavior(TMD)

    And it can be a different TMD to each H.

    When we disallow decider/input pairs that are incorrect
    questions where both YES and NO are the wrong answer

    Once we understand that either YES or NO is the right answer, the >>>>>>> whole rebuttal is tossed out as invalid and incorrect.


    Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.Hq0 ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.Hqy ∞ // Ĥ applied to ⟨Ĥ⟩ halts
    Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.Hq0 ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.Hqn   // Ĥ applied to ⟨Ĥ⟩ does not
    halt
    BOTH YES AND NO ARE THE WRONG ANSWER FOR EVERY Ĥ.H ⟨Ĥ⟩ ⟨Ĥ⟩ >>>>>>

    Once we understand that either YES or NO is the right answer, the
    whole rebuttal is tossed out as invalid and incorrect.

    Does the barber that shaves everyone that does not shave
    themselves shave himself? is rejected as an incorrect question. >>>>>>>
    The barber does not exist.

    Russell's paradox did not allow this answer within Naive set theory. >>>>>
    Naive set theory says that for every predicate P, the set {x |
    P(x)} exists. This axiom was a mistake. This axiom is not in ZFC.

    In Turing machines, for every non-empty finite set of alphabet
    symbols Γ, every b∈Γ, every Σ⊆Γ, every non-empty finite set of >>>>> states Q, every q0∈Q, every F⊆Q, and every δ:(Q∖F)×Γ↛Q×Γ×{L,R},
    ⟨Q,Γ,b,Σ,δ,q0,F⟩ is a Turing machine. Do you think this is a
    mistake? Would you remove this axiom from your version of Turing
    machines?

    (Following the definition used on Wikipedia:
    https://en.wikipedia.org/wiki/Turing_machine#Formal_definition)

    The following is true statement:

    ∀ Barber ∈ People. ¬(∀ Person ∈ People. Shaves(Barber, Person) ⇔
    ¬Shaves(Person, Person))

    The following is a true statement:

    ¬∃ Barber ∈ People. (∀ Person ∈ People. Shaves(Barber, Person) ⇔
    ¬Shaves(Person, Person))


    That might be correct I did not check it over and over
    again and again to make sure.

    The same reasoning seems to rebut Gödel Incompleteness:
    ...We are therefore confronted with a proposition which
    asserts its own unprovability. 15 ... (Gödel 1931:43-44)
    ¬∃G ∈ F | G := ~(F ⊢ G)

    Any G in F that asserts its own unprovability in F is
    asserting that there is no sequence of inference steps
    in F that prove that they themselves do not exist in F.

    The barber does not exist and the proposition does not exist.


    When we do this exact same thing that ZFC did for self-referential
    sets then Gödel's self-referential expressions that assert their
    own unprovability in F also cease to exist.

    Path: i2pn2.org!i2pn.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
    From: olcott <[email protected]>
    Newsgroups: sci.logic
    Subject: =?UTF-8?Q?Re=3A_ZFC_solution_to_incorrect_questions=3A_reject_them_?= =?UTF-8?Q?--G=C3=B6del--?=
    Date: Fri, 15 Mar 2024 09:28:49 -0500
    Organization: A noiseless patient Spider
    Lines: 119
    Message-ID: <ut1lv1$2afad$[email protected]>
    References: <usq5uq$e4sh$[email protected]> <usq715$ed9g$[email protected]> <usq8rh$etp9$[email protected]> <usqe3m$fsqm$[email protected]> <usqega$g2eo$[email protected]> <usrtle$t4t7$[email protected]> <ussd06$vvaq$[email protected]> <ut1a64$287bp$[email protected]>
    MIME-Version: 1.0
    Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit
    Injection-Date: Fri, 15 Mar 2024 14:28:49 -0000 (UTC)
    Injection-Info: dont-email.me; posting-host="628c0b780d2c261756f82ddadd066eb3";
        logging-data="2440525"; mail-complaints-to="[email protected]"; posting-account="U2FsdGVkX1+bdsKM1zamuHxwmn/bRlV9"
    User-Agent: Mozilla Thunderbird
    Cancel-Lock: sha1:7IaTHWr4kRbYvG0nhBETmBx2ZH8=
    Content-Language: en-US
    In-Reply-To: <ut1a64$287bp$[email protected]>
    Xref: i2pn2.org sci.logic:68595

    On 3/15/2024 6:07 AM, Mikko wrote:
    On 2024-03-13 14:25:10 +0000, olcott said:

    On 3/13/2024 5:03 AM, Mikko wrote:
    On 2024-03-12 20:38:34 +0000, olcott said:

    On 3/12/2024 3:31 PM, immibis wrote:
    On 12/03/24 20:02, olcott wrote:
    On 3/12/2024 1:31 PM, immibis wrote:
    On 12/03/24 19:12, olcott wrote:
    ∀ H ∈ Turing_Machine_Deciders
    ∃ TMD ∈ Turing_Machine_Descriptions  |
    Predicted_Behavior(H, TMD) != Actual_Behavior(TMD)

    There is some input TMD to every H such that
    Predicted_Behavior(H, TMD) != Actual_Behavior(TMD)

    And it can be a different TMD to each H.

    When we disallow decider/input pairs that are incorrect
    questions where both YES and NO are the wrong answer

    Once we understand that either YES or NO is the right answer,
    the whole rebuttal is tossed out as invalid and incorrect.


    Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.Hq0 ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.Hqy ∞ // Ĥ applied to ⟨Ĥ⟩ halts
    Ĥ.q0 ⟨Ĥ⟩ ⊢* Ĥ.Hq0 ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.Hqn   // Ĥ applied to ⟨Ĥ⟩ does not
    halt
    BOTH YES AND NO ARE THE WRONG ANSWER FOR EVERY Ĥ.H ⟨Ĥ⟩ ⟨Ĥ⟩ >>>>>>>

    Once we understand that either YES or NO is the right answer, the
    whole rebuttal is tossed out as invalid and incorrect.

    Does the barber that shaves everyone that does not shave
    themselves shave himself? is rejected as an incorrect question. >>>>>>>>
    The barber does not exist.

    Russell's paradox did not allow this answer within Naive set theory. >>>>>>
    Naive set theory says that for every predicate P, the set {x |
    P(x)} exists. This axiom was a mistake. This axiom is not in ZFC.

    In Turing machines, for every non-empty finite set of alphabet
    symbols Γ, every b∈Γ, every Σ⊆Γ, every non-empty finite set of >>>>>> states Q, every q0∈Q, every F⊆Q, and every δ:(Q∖F)×Γ↛Q×Γ×{L,R},
    ⟨Q,Γ,b,Σ,δ,q0,F⟩ is a Turing machine. Do you think this is a >>>>>> mistake? Would you remove this axiom from your version of Turing
    machines?

    (Following the definition used on Wikipedia:
    https://en.wikipedia.org/wiki/Turing_machine#Formal_definition)

    The following is true statement:

    ∀ Barber ∈ People. ¬(∀ Person ∈ People. Shaves(Barber, Person) ⇔
    ¬Shaves(Person, Person))

    The following is a true statement:

    ¬∃ Barber ∈ People. (∀ Person ∈ People. Shaves(Barber, Person) ⇔
    ¬Shaves(Person, Person))


    That might be correct I did not check it over and over
    again and again to make sure.

    The same reasoning seems to rebut Gödel Incompleteness:
    ...We are therefore confronted with a proposition which
    asserts its own unprovability. 15 ... (Gödel 1931:43-44)
    ¬∃G ∈ F | G := ~(F ⊢ G)

    Any G in F that asserts its own unprovability in F is
    asserting that there is no sequence of inference steps
    in F that prove that they themselves do not exist in F.

    The barber does not exist and the proposition does not exist.


    When we do this exact same thing that ZFC did for self-referential
    sets then Gödel's self-referential expressions that assert their
    own unprovability in F also cease to exist.

    Although Russel's set cannot be costructed in in ZFC Gödel's set can, >>>> thus proving that ZFC is incomplete and ZFC augmented with additional
    axioms is either incomplete or inconsistent.


    That is not how it works at all. Russell's paradox pointed out
    incoherence in the notion of a set. ZFC fixed that.

    The inability to show the a self-contradictory sentence is true or false >>> is merely the inability to do the logically impossible and places no
    actual limit on anyone or anything.

    If a theory is complete there is a simple computable method to find out
    whether a particular sentence is a theorem or not. That method does not
    work with incomplete theories, and in many cases, including ZF and ZFC,
    no method works.


    To say that anything or anyone is in anyway limited or incomplete
    because they lack the ability to do the logically impossible is
    incorrect.

    But finding out that something is logically imposible does improve our
    knowedge of what IS possible.


    Human knowledge is not incomplete on the basis of the lack of the
    ability to prove the Liar Paradox is true or false.
    "This sentence is not true." is not true, yet neither true nor false.

    But is because we don't know the answer to things like the twin prime conjecture.


    The Liar Paradox is not truth bearer thus has no truth value.
    Tarski concluded that True(L,x) cannot be defined because it
    gets stumped on the Liar Paradox.


    Nope, it gets stumped by questions that ask about some statements that
    use the True predicate (even in just a meta-theory and not actually in
    the theory).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)