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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.quux.org!news.nk.ca!rocksolid2!i2pn2.org!.POSTED!not-for-mail From: Richard Damon <richard@damon-family.org> Newsgroups: sci.logic Subject: Re: Why Tarski is wrong --- Montague, Davidson and Knowledge Ontology providing situational context. Date: Sat, 22 Mar 2025 09:37:08 -0400 Organization: i2pn2 (i2pn.org) Message-ID: <f2647aede53b9fb97730c954be08167c18cae30c@i2pn2.org> References: <vr1shq$1qopn$1@dont-email.me> <vr4t3e$bkso$5@dont-email.me> <vr50bg$ed3o$5@dont-email.me> <vr5abg$m5ov$6@dont-email.me> <8ea8c8f1c661d0f2eef855af9b4c171d4f574826@i2pn2.org> <vr6po4$1udpn$7@dont-email.me> <4965dcbb84fc29c9ba9d3cea39b59a8608bfeb66@i2pn2.org> <vr7v51$2u81k$3@dont-email.me> <7db5f56a38a6b6eda2b63acc2568f5dedcc55efd@i2pn2.org> <vr9fp6$bv13$5@dont-email.me> <vrbrkd$2ii4j$1@dont-email.me> <vrbss5$2j07c$1@dont-email.me> <2dd0fa97e2387ba4bca36b40ca16925933b35d9a@i2pn2.org> <vrfe7q$1oabl$1@dont-email.me> <0e92642bf4519e50ba48d51b52d17749c6e19664@i2pn2.org> <vri3va$3egq$1@dont-email.me> <9495b0ea31b3c2559cf9515bfabe071d48cc9d39@i2pn2.org> <vrinjq$kefg$2@dont-email.me> <7e65b56232049fe2b950c1502d33545501e1f185@i2pn2.org> <vrkqnt$2h2aq$3@dont-email.me> <829a8bc81663a35c224655ab2d5394505bf03a3e@i2pn2.org> <vrl65j$2qtdu$2@dont-email.me> <87b334681a5e65d8c70b10e6ebd4a98c0aff9f36@i2pn2.org> <vrl955$2t44r$2@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Sat, 22 Mar 2025 13:37:08 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="1277830"; mail-complaints-to="usenet@i2pn2.org"; posting-account="diqKR1lalukngNWEqoq9/uFtbkm5U+w3w6FQ0yesrXg"; User-Agent: Mozilla Thunderbird X-Spam-Checker-Version: SpamAssassin 4.0.0 Content-Language: en-US In-Reply-To: <vrl955$2t44r$2@dont-email.me> Bytes: 11773 Lines: 217 On 3/21/25 11:00 PM, olcott wrote: > On 3/21/2025 9:31 PM, Richard Damon wrote: >> On 3/21/25 10:09 PM, olcott wrote: >>> On 3/21/2025 7:01 PM, Richard Damon wrote: >>>> On 3/21/25 6:54 PM, olcott wrote: >>>>> On 3/21/2025 6:48 AM, Richard Damon wrote: >>>>>> On 3/20/25 11:49 PM, olcott wrote: >>>>>>> On 3/20/2025 8:31 PM, Richard Damon wrote: >>>>>>>> On 3/20/25 6:14 PM, olcott wrote: >>>>>>>>> On 3/19/2025 8:59 PM, Richard Damon wrote: >>>>>>>>>> On 3/19/25 5:50 PM, olcott wrote: >>>>>>>>>>> On 3/18/2025 10:04 PM, Richard Damon wrote: >>>>>>>>>>>> On 3/18/25 9:36 AM, olcott wrote: >>>>>>>>>>>>> On 3/18/2025 8:14 AM, Mikko wrote: >>>>>>>>>>>>>> On 2025-03-17 15:40:22 +0000, olcott said: >>>>>>>>>>>>>> >>>>>>>>>>>>>>> On 3/16/2025 9:51 PM, Richard Damon wrote: >>>>>>>>>>>>>>>> On 3/16/25 9:50 PM, olcott wrote: >>>>>>>>>>>>>>>>> On 3/16/2025 5:50 PM, Richard Damon wrote: >>>>>>>>>>>>>>>>>> On 3/16/25 11:12 AM, olcott wrote: >>>>>>>>>>>>>>>>>>> On 3/16/2025 7:36 AM, joes wrote: >>>>>>>>>>>>>>>>>>>> Am Sat, 15 Mar 2025 20:43:11 -0500 schrieb olcott: >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> We can define a correct True(X) predicate that >>>>>>>>>>>>>>>>>>>>> always succeeds except >>>>>>>>>>>>>>>>>>>>> for unknowns and untruths, Tarski WAS WRONG !!! >>>>>>>>>>>>>>>>>>>> That does not disprove Tarski. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> He said that this is impossible and no >>>>>>>>>>>>>>>>>>> counter-examples exists that shows that I am wrong. >>>>>>>>>>>>>>>>>>> True(GC) == FALSE Cannot be proven true AKA unknown >>>>>>>>>>>>>>>>>>> True(LP) == FALSE Not a truth-bearer >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> But if x is what you are saying is >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> A True(X) predicate can be defined and Tarski never >>>>>>>>>>>>>>>>> showed that it cannot. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Sure he did. Using a mathematical system like Godel, we >>>>>>>>>>>>>>>> can construct a statement x, which is only true it is >>>>>>>>>>>>>>>> the case that True(x) is false, but this interperetation >>>>>>>>>>>>>>>> can only be seen in the metalanguage created from the >>>>>>>>>>>>>>>> language in the proof, similar to Godel meta that >>>>>>>>>>>>>>>> generates the proof testing relationship that shows that >>>>>>>>>>>>>>>> G can only be true if it can not be proven as the >>>>>>>>>>>>>>>> existance of a number to make it false, becomes a proof >>>>>>>>>>>>>>>> that the statement is true and thus creates a >>>>>>>>>>>>>>>> contradiction in the system. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> That you can't understand that, or get confused by what >>>>>>>>>>>>>>>> is in the language, which your True predicate can look >>>>>>>>>>>>>>>> at, and in the metalanguage, which it can not, but still >>>>>>>>>>>>>>>> you make bold statements that you can not prove, and >>>>>>>>>>>>>>>> have been pointed out to be wrong, just shows how stupid >>>>>>>>>>>>>>>> you are. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> True(X) only returns TRUE when a a sequence of truth >>>>>>>>>>>>>>>>> preserving operations can derive X from the set of basic >>>>>>>>>>>>>>>>> facts and returns false otherwise. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Right, but needs to do so even if the path to x is >>>>>>>>>>>>>>>> infinite in length. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> This never fails on the entire set of human general >>>>>>>>>>>>>>>>> knowledge that can be expressed using language. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> But that isn't a logic system, so you are just proving >>>>>>>>>>>>>>>> your stupidity. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Note, "The Entire set of Human General Knowledge" does >>>>>>>>>>>>>>>> not contain the contents of Meta-systems like Tarski >>>>>>>>>>>>>>>> uses, as there are an infinite number of them possible, >>>>>>>>>>>>>>>> and thus to even try to express them all requires an >>>>>>>>>>>>>>>> infinite number of axioms, and thus your system fails to >>>>>>>>>>>>>>>> meet the requirements. Once you don't have the meta- >>>>>>>>>>>>>>>> systems, Tarski proof can create a metasystem, that you >>>>>>>>>>>>>>>> system doesn't know about, which creates the problem >>>>>>>>>>>>>>>> statement. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> It is not fooled by pathological self-reference or >>>>>>>>>>>>>>>>> self-contradiction. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Of course it is, because it can't detect all forms of >>>>>>>>>>>>>>>> such references. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> And, even if it does detect it, what answer does True(x) >>>>>>>>>>>>>>>> produce when we have designed (via a metalanguage) that >>>>>>>>>>>>>>>> the statement x in the language will be true if and only >>>>>>>>>>>>>>>> if ! True(x), which he showed can be done in ANY system >>>>>>>>>>>>>>>> with sufficient power, which your universal system must >>>>>>>>>>>>>>>> have. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Sorry, you are just showing how little you understand >>>>>>>>>>>>>>>> what you are talking about. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> We need no metalanguage. A single formalized natural >>>>>>>>>>>>>>> language can express its own semantics as connections >>>>>>>>>>>>>>> between expressions of this same language. >>>>>>>>>>>>>> >>>>>>>>>>>>>> A nice formal language has the symbols and syntax of the >>>>>>>>>>>>>> first order logic >>>>>>>>>>>>>> with equivalence and the following additional symbols: >>>>>>>>>>>>> >>>>>>>>>>>>> I am not talking about a trivially simple formal >>>>>>>>>>>>> language. I am talking about very significant >>>>>>>>>>>>> extensions to something like Montague grammar. >>>>>>>>>>>>> >>>>>>>>>>>>> The language must be expressive enough to fully >>>>>>>>>>>>> encode any and all details of each element of the >>>>>>>>>>>>> entire body of human general knowledge that can >>>>>>>>>>>>> be expressed using language. Davidson semantics >>>>>>>>>>>>> provides another encoding. >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> But "encoding" knowledge, isn't a logic system. >>>>>>>>>>> Unless you bother to pay attention to the details >>>>>>>>>>> of how this of encoded. >>>>>>>>>> >>>>>>>>>> But "Encoded Knowledge" isn't a logic system. PERIOD. BYU >>>>>>>>>> DEFINITION. That would just be a set of axioms. Note, Logic >>>>>>>>>> system must also have a set of rules of relationships and how >>>>>>>>>> to manipulate them, >>>>>>>>> >>>>>>>>> Yes stupid I already specified those 150 times. >>>>>>>>> TRUTH PRESERVING OPERATIONS. >>>>>>>>> >>>>>>>>>> and that needs more that just expressing them as knowledge. >>>>>>>>>> >>>>>>>>> >>>>>>>>> NOT AT ALL DUMB BUNNY, for all the expressions >>>>>>>>> that are proved completely true entirely on the basis of >>>>>>>>> their meaning expressed in language they only need a >>>>>>>>> connection this semantic meaning to prove that they >>>>>>>>> are true. >>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> Part of the problem is that most of what we call "Human >>>>>>>>>>>> Knowledge" isn't logically defined truth, but is just >>>>>>>>>>>> "Emperical Knowledge", for which we >>>>>>>>>>> >>>>>>>>>>> The set of human knowledge that can be expressed >>>>>>>>>>> in language provides the means to compute True(X). >>>>>>>>>> >>>>>>>>>> Of course not, as then True(x) just can't handle a statement >>>>>>>>>> whose truth is currently unknown, which it MUST be able to handle >>>>>>>>>> >>>>>>>>> >>>>>>>>> It employs the same algorithm as Prolog: >>>>>>>>> Can X be proven on the basis of Facts? ========== REMAINDER OF ARTICLE TRUNCATED ==========