Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Richard Heathfield <rjh@cpax.org.uk>
Newsgroups: comp.theory
Subject: Re: Halting Problem: What Constitutes Pathological Input
Date: Tue, 6 May 2025 07:21:57 +0100
Organization: Fix this later
Lines: 28
Message-ID: <vvc9q5$29pp7$1@dont-email.me>
References: <GE4SP.47558$VBab.42930@fx08.ams4> <vvamqc$o6v5$4@dont-email.me>
 <vvan7q$o4v0$1@dont-email.me> <ts5SP.113145$_Npd.41800@fx01.ams4>
 <vvat0g$vtiu$1@dont-email.me> <vvatf3$o4v0$3@dont-email.me>
 <vvaut0$vtiu$4@dont-email.me> <vvav6o$o4v0$4@dont-email.me>
 <vvb329$15u5b$1@dont-email.me> <vvb37g$1451r$1@dont-email.me>
 <vvb43f$15u5b$4@dont-email.me> <vvb4ok$o4v0$9@dont-email.me>
 <vvb52g$15u5b$6@dont-email.me> <vvb5ca$o4v0$10@dont-email.me>
 <vvb5vp$15u5b$7@dont-email.me> <vvb675$o4v0$11@dont-email.me>
 <vvb9d7$1av94$3@dont-email.me> <vvbani$1b6l1$1@dont-email.me>
 <vvbb82$1a9jr$5@dont-email.me> <vvbcef$1b6l1$3@dont-email.me>
 <vvbe4m$1av94$9@dont-email.me> <vvbefp$1b6l1$7@dont-email.me>
 <vvbhnh$1ijna$2@dont-email.me> <vvc81f$29pp8$2@dont-email.me>
 <vvc8cj$2a4cs$2@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Tue, 06 May 2025 08:21:58 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="4489552a91c35915dbf980ce94c452ca";
	logging-data="2418471"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+SaxqCUVsFveu7GPjEKoS/EyXNqg529mEUMJkP4Jr7Bg=="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:yCoNX+DjPo/P8WvMC+05Dwy0Yy0=
In-Reply-To: <vvc8cj$2a4cs$2@dont-email.me>
Content-Language: en-GB
Bytes: 2744

On 06/05/2025 06:57, olcott wrote:
> On 5/6/2025 12:51 AM, Richard Heathfield wrote:
>> On 06/05/2025 00:30, olcott wrote:
>>> There are different ways of framing the problem.
>>> The only one that matters is that HHH(DD) does
>>> correctly determine that DD never halts.
>>
>> That may be the only one that matters to you. 
> 
> It refutes ALL of the conventional HP proofs.

In your view, perhaps. But it takes a convincing argument to 
refute a major proof, and you don't have a convincing argument, 
just a long trail of people you've failed to convince.

>> The one that matters to computer scientists, though, is the one 
>> that shows why some  questions are undecidable.
> 
> Because they are are framed incorrectly.

Where 'incorrectly' is your code for 'undecidably'.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within