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Old 12-01-2008   #32 (permalink)
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Re: Halting Undecidability proof faulty?

Quote:
Originally Posted by Kriminal99 View Post
Furthermore, your claim regarding program tracing is incorrect. For a Halting (or even Universal Turing Machine) that partially traces the computations of it's input encoding, it is not necessary that the machine completely trace the computations. It could for example stop when any loop has occured by comparing the current state with any previously obtained state. Perhaps if you had more experience working with theoretical touring machines, you would know this.
First you claim that it does need to trace and then that it doesn't need to trace.

Are you going to decide, or are you going to endlessly change your position in a somewhat transparent effort to create conflict?

Perhaps if you had more experience in working with programming languages and parser construction you would understand how silly either side of what you're arguing is.

The absurdity of your claims on this particular topic is of course true no matter whether you're discussing Turing Machines or your Calvinball-like "Touring Machines" (how many gears does that have?)
Quote:
Originally Posted by Kriminal99 View Post
I find it amusing that you attempt to attribute the blind obedience that is a direct result of social pressures to the working of simple problems in a university setting. If a student in a "introductory computer science class" objected in any way to the presented proof, the professor would just declare by fiat his grade to be an F either directly or through concealed logic errors in grading.
So finally we get to the autobiographical part of the thread, and your somewhat transparent intent in your original post.

I know lots of teachers and professors, and the vast majority actually love questions like this: it's exactly why they became teachers in the first place. At the same time, there are certain students who's intent is not to learn but to disrupt the class in order to prove that they are in control by incessantly questioning every conceivable assumption that is taken in the presentation of material.

In an "Introductory" class, such behavior goes from an opportunity to let everyone learn into a battle of wills between a student who cares only about inflating their own ego by "showing that professor that he's just stuck in old ways of thinking."

In a University of course, a professor does not have the option of sending you to the chancellor for a spanking, so in some cases, yes, a bad grade is in return for actually disrupting the class and selfishly stealing costly class time from the other students. So, in that respect, such grading tactics are indeed quite logical.

I find it highly likely given your "debating tactics" in this thread that you've run into that constantly in your life.

How's that workin' for ya?

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Buffy


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