Path: ...!weretis.net!feeder9.news.weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: "Fred. Zwarts" <F.Zwarts@HetNet.nl>
Newsgroups: comp.theory,sci.logic
Subject: Re: Every D(D) simulated by H presents non-halting behavior to H ###
Date: Sat, 18 May 2024 10:30:56 +0200
Organization: A noiseless patient Spider
Lines: 55
Message-ID: <v29p01$2mqcm$1@dont-email.me>
References: <v18e32$1vbql$1@dont-email.me> <v1gid8$4ilc$1@dont-email.me>
 <v1h9eu$9faf$1@dont-email.me> <v1iqli$nsva$1@dont-email.me>
 <v1ln3c$vfh$1@news.muc.de> <v1s6e6$397iq$2@dont-email.me>
 <v1slmi$3cjtp$1@dont-email.me> <v1t8tt$3gu9t$3@dont-email.me>
 <v1vc8j$3jmr$1@dont-email.me> <v1vsru$7eqc$1@dont-email.me>
 <v21r4i$otc2$2@dont-email.me> <v22k4b$umr4$1@dont-email.me>
 <v24oah$1h4u3$1@dont-email.me> <v256fc$1kais$1@dont-email.me>
 <v25bf0$ecc$1@news.muc.de> <v25crp$1lmq1$1@dont-email.me>
 <v28d3q$nic$1@news.muc.de> <v28njc$2dp3s$1@dont-email.me>
 <v28odm$2dlle$1@dont-email.me> <v28t32$2ehk3$2@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Sat, 18 May 2024 10:30:57 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="8629b49bf35ba40bf195d19c5738aa21";
	logging-data="2845078"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/E72d4ewqkK2fVO+SjASMW"
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:SHxrDU9r0mTxtl/yvXDMP72Y4sM=
Content-Language: en-GB
In-Reply-To: <v28t32$2ehk3$2@dont-email.me>
Bytes: 3244

Op 18.mei.2024 om 02:34 schreef olcott:
> On 5/17/2024 6:15 PM, André G. Isaak wrote:
>> On 2024-05-17 17:00, olcott wrote:
>>> On 5/17/2024 3:02 PM, Alan Mackenzie wrote:
>>
>>>> That "program" doesn't compile.  It's ill-formed. 
>>>
>>> This does compile under C17 and C11
>>> with Microsoft Visual Studio 2022
>>  >
>>> *Maybe you forgot to take the line numbers out*
>>> *Maybe you forgot to take the line numbers out*
>>> *Maybe you forgot to take the line numbers out*
>>> *Maybe you forgot to take the line numbers out*
>>>
>>> typedef int (*ptr)();
>>> int H(ptr P, ptr I);
>>
>> But that's not the code you provide in your numerous previous posts 
>> where you insist on
>>
>> int H(ptr x, ptr x);
>>
>> Maybe when people point out that there is an error you should actually 
>> proofread what you wrote.
>>
>> [remaining code deleted].
>>
>> André
>>
> 
> typedef int (*ptr)();  // ptr is pointer to int function
> 00 int H(ptr x, ptr y);
> 01 int D(ptr x)
> 02 {
> 03   int Halt_Status = H(x, x);
> 04   if (Halt_Status)
> 05     HERE: goto HERE;
> 06   return Halt_Status;
> 07 }
> 08
> 09 int main()
> 10 {
> 11   H(D,D);
> 12   return 0;
> 13 }
> 
> When people tell me that I am wrong about the semantics of
> that code template I have always known they are wrong because
> I have always had empirical proof that D correctly simulated
> By H cannot possibly reach its own simulated line 06 and halt.

Please, tell us how this empirical proof for an infinite set of H/D 
pairs looks like.