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From: wij <wyniijj5@gmail.com>
Newsgroups: comp.theory
Subject: Re: Incorrect requirements --- Computing the mapping from the input
 to HHH(DD)
Date: Sun, 11 May 2025 10:09:54 +0800
Organization: A noiseless patient Spider
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On Sat, 2025-05-10 at 20:56 -0500, olcott wrote:
> On 5/10/2025 8:44 PM, wij wrote:
> > On Sat, 2025-05-10 at 20:26 -0500, olcott wrote:
> > > On 5/10/2025 8:17 PM, wij wrote:
> > > > On Sat, 2025-05-10 at 17:03 -0500, olcott wrote:
> > > > > On 5/10/2025 4:44 PM, wij wrote:
> > > > > > On Sat, 2025-05-10 at 14:29 -0500, olcott wrote:
> > > > > > > On 5/10/2025 2:02 PM, wij wrote:
> > >=20
> > > >=20
> > > > You don't know the counter example in the HP proof, your D is not t=
he case what HP says.
> > > >=20
> > >=20
> > > Sure I do this is it! (as correctly encoded in C)
> > >=20
> > > typedef void (*ptr)();
> > > int HHH(ptr P);
> > >=20
> > > int DD()
> > > {
> > > =C2=A0=C2=A0=C2=A0 int Halt_Status =3D HHH(DD);
> > > =C2=A0=C2=A0=C2=A0 if (Halt_Status)
> > > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 HERE: goto HERE;
> > > =C2=A0=C2=A0=C2=A0 return Halt_Status;
> > > }
> > >=20
> > > int main()
> > > {
> > > =C2=A0=C2=A0=C2=A0 HHH(DD);
> > > }
> > >=20
> > >=20
> >=20
> > Try to convert it to TM language to know you know nothing.
> >=20
>=20
> I spent 22 years on this. I started with the Linz text
>=20
> When =C4=A4 is applied to =E2=9F=A8=C4=A4=E2=9F=A9
> =C4=A4.q0 =E2=9F=A8=C4=A4=E2=9F=A9 =E2=8A=A2* embedded_H =E2=9F=A8=C4=A4=
=E2=9F=A9 =E2=9F=A8=C4=A4=E2=9F=A9 =E2=8A=A2* =C4=A4.qy =E2=88=9E
> =C2=A0=C2=A0 or
> =C4=A4.q0 =E2=9F=A8=C4=A4=E2=9F=A9 =E2=8A=A2* embedded_H =E2=9F=A8=C4=A4=
=E2=9F=A9 =E2=9F=A8=C4=A4=E2=9F=A9 =E2=8A=A2* =C4=A4.qn
>=20
> (a) =C4=A4 copies its input =E2=9F=A8=C4=A4=E2=9F=A9
> (b) =C4=A4 invokes embedded_H =E2=9F=A8=C4=A4=E2=9F=A9 =E2=9F=A8=C4=A4=E2=
=9F=A9
> (c) embedded_H simulates =E2=9F=A8=C4=A4=E2=9F=A9 =E2=9F=A8=C4=A4=E2=9F=
=A9 ...
>=20
> Thus =E2=9F=A8=C4=A4=E2=9F=A9 =E2=9F=A8=C4=A4=E2=9F=A9 correctly simulate=
d by embedded_H
> cannot possibly reach its simulated final halt state
> =E2=9F=A8=C4=A4.qn=E2=9F=A9
>=20
> > To refute the HP, you need to understand what it exactly means in TM.
>=20
> I have known this for 22 years.

A working TM.=C2=A0Build it explicitly from transition function, then expla=
in=20
your derivation. You know nothing.

> > Assembly (or C) also work, but you need to understand more details and
> > be able to map every assembly instruction or C expressions to TM langua=
ge.
> > The form of the DD above (in some books maybe) is for layman to underst=
and,
> > which is not exactly the case that the HP provides. Don't be silly.
> >=20
>=20
>=20
>=20