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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: comp.theory,sci.logic,sci.lang Subject: Re: Why Tarski is wrong --- Montague, Davidson and Knowledge Ontology providing situational context. Date: Fri, 21 Mar 2025 19:49:00 -0400 Organization: i2pn2 (i2pn.org) Message-ID: <80f6b568cfb34ab938a93c698261a9a44c2e2151@i2pn2.org> References: <vr1shq$1qopn$1@dont-email.me> <vr2qmt$2ij53$1@dont-email.me> <vr2r34$2d3ah$7@dont-email.me> <vr2tti$2kq04$3@dont-email.me> <vr3u4l$3idjs$2@dont-email.me> <vr4kkr$48ff$2@dont-email.me> <7f68c434c15abfc9d4b645992344f0e851f031a3@i2pn2.org> <vr4t3e$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> <198147436b2d4d12c8bcce16717b87193d61bb97@i2pn2.org> <vrk63e$1v8me$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Fri, 21 Mar 2025 23:49:00 -0000 (UTC) Injection-Info: i2pn2.org; logging-data="1199593"; mail-complaints-to="usenet@i2pn2.org"; posting-account="diqKR1lalukngNWEqoq9/uFtbkm5U+w3w6FQ0yesrXg"; User-Agent: Mozilla Thunderbird X-Spam-Checker-Version: SpamAssassin 4.0.0 In-Reply-To: <vrk63e$1v8me$1@dont-email.me> Content-Language: en-US Bytes: 11890 Lines: 230 On 3/21/25 1:02 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? >>>> >>>> And thus you just admitted that your system doesn't even QUALIFY to >>>> be the system that Tarski is talking about. >>>> >>>> You don't seem to understand that fact, because apparently you can't >>>> actually understand any logic system more coplicated than what >>>> Prolog can handle. >>>> ========== REMAINDER OF ARTICLE TRUNCATED ==========