Path: ...!3.eu.feeder.erje.net!feeder.erje.net!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Mild Shock Newsgroups: comp.theory,sci.logic Subject: Re: Analytic Truth-makers Date: Tue, 23 Jul 2024 22:57:39 +0200 Message-ID: References: <3fb77583036a3c8b0db4b77610fb4bf4214c9c23@i2pn2.org> <9577ce80fd6c8a3d5dc37b880ce35a4d10d12a0e@i2pn2.org> <7d9b88425623e1166e358f1bce4c3a2767c36da0@i2pn2.org> <2a0f9a4235d75dee94ccae62b10d3afef5a966a5@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 23 Jul 2024 20:57:37 -0000 (UTC) Injection-Info: solani.org; logging-data="274478"; mail-complaints-to="abuse@news.solani.org" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 SeaMonkey/2.53.18.2 Cancel-Lock: sha1:ufXUFKVuEpiv8U7F60ZcggjemTM= In-Reply-To: X-User-ID: eJwNy9EVADEEBMCWEDaU49nov4S7+Z84UMx1BDw2drFvlGmsqUxPaxVX1yo7iGtyhDLN3ftHGp4nkU1nd8cHQosVZg== Bytes: 2054 Lines: 22 Since generations logicians have called sentences which you clumsily call "not a truth-bearer", simple called "undecidable" sentences. A theory is incomplete, if it has undecidable sentences. There is a small difference between unprovable and undecidable. An unprovable senetence A is only a sentence with: ~True(L, A). An undecidable sentence A is a sentence with: ~True(L, A) & ~True(L, ~A) Meaning the sentence itself and its complement are both unprovable. olcott schrieb: > ~True(L,x) ∧ ~True(L,~x) > means that x is not a truth-bearer in L. > It does not mean that L is incomplete