Path: csiph.com!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: polcott Newsgroups: comp.theory,sci.logic,sci.math Subject: Re: Final Resolution of the Liar Paradox Date: Fri, 28 Nov 2025 08:03:52 -0600 Message-ID: <10gca48$of6n$2@solani.org> References: <10g9nlr$1fv38$1@dont-email.me> <10g9u87$1iors$1@dont-email.me> <10gbl74$26had$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 28 Nov 2025 14:03:52 -0000 (UTC) Injection-Info: solani.org; logging-data="802007"; mail-complaints-to="abuse@news.solani.org" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:n6SAZeFbs7aNM5ZflrAaUxTOSq4= X-Antivirus-Status: Clean In-Reply-To: <10gbl74$26had$1@dont-email.me> X-User-ID: eJwFwYEBwCAIA7CXKNDizhmi/59gwhC0K0UlL2/C49NISNtgwz3n+Fj/ZsM8FXf3Kgy4RvYAABgQVg== X-Antivirus: Norton (VPS 251128-4, 11/28/2025), Outbound message Content-Language: en-US Xref: csiph.com comp.theory:136720 sci.logic:342531 sci.math:641341 On 11/28/2025 2:06 AM, Mikko wrote: > olcott kirjoitti 27.11.2025 klo 18.28: >> On 11/27/2025 8:36 AM, olcott wrote: >>> This sentence is not true. >>> It is not true about what? >>> It is not true about being not true. >>> It is not true about being not true about what? >>> It is not true about being not true about being not true. >>> Oh I see you are stuck in a loop! >>> >>> The simple English shows that the Liar Paradox never >>> gets to the point. >>> >>> This is formalized in the Prolog programming language >>> ?- LP = not(true(LP)). >>> LP = not(true(LP)). >>> ?- unify_with_occurs_check(LP, not(true(LP))). >>> False. >>> >>> Failing an occurs check seems to mean that the >>> resolution of an expression remains stuck in >>> infinite recursion. This is more clearly seen below. >>> >>> In Olcott's Minimal Type Theory >>> LP := ~True(LP)    // LP {is defined as} ~True(LP) >>> that expands to ~True(~True(~True(~True(~True(~True(...)))))) >>> https://philarchive.org/archive/PETMTT-4v2 >>> >>> The above seems to prove that the Liar Paradox >>> has merely been semantically unsound all these years. >>> >> >> *Final Resolution of the Liar Paradox* >> https://philpapers.org/archive/OLCFRO.pdf > > Nothing is final in philosophy. > > For the most common forms of formal logic this paradox is not possible > because there is no syntax for definitions. > Lookup Olcott's Minimal Type Theory I created Olcott's Minimal Type Theory for the sole purpose of formalizing Pathological-self-reference(Olcott 2004) LP := ~True(LP) // LP {is defined as} ~True(LP) that expands to ~True(~True(~True(~True(~True(~True(...)))))) G := (F ⊬ G) // G is defined as unprovable in F ...We are therefore confronted with a proposition which asserts its own unprovability. 15 … (Gödel 1931:40-41) Gödel, Kurt 1931. On Formally Undecidable Propositions of Principia Mathematica And Related Systems -- Copyright 2025 Olcott My 28 year goal has been to make "true on the basis of meaning" computable. This required establishing a new foundation for correct reasoning.