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Subject: Re: source code can be retrieved from an engine

Author: James Swafford

Date: 09:36:11 02/04/06

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On February 04, 2006 at 09:00:11, Uri Blass wrote:

>On February 04, 2006 at 08:30:51, James Swafford wrote:
>
>>On February 04, 2006 at 01:53:28, Joseph Tadeusz wrote:
>>
>>[snip]
>>
>>>
>>>You said: "100% correct decompilation is PROVABLY impossible"
>>>
>>>I understood you meant 'for any program',
>>>but I suppose you meant 'for all programs'.
>>
>>
>>That's generally what that statement means.  The halting problem
>>is proven to be uncomputable, though you can certainly figure it
>>out for some programs.
>>
>>--
>>James
>
>A program cannot compute the halting problem.
>It does not thing that it is not possible to build another tool that is not a
>program that can compute the halting problem.


Ok, you have to give a precise definition of a computer if you
claim something is uncomputable.  Of course I'm referring to
a Turing machine.  The halting problem is uncomputable using a
Turing machine.  If you have something more powerful than a Turing
machine, then of course the classic proof would not apply.

--
James



>
>Uri



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