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On 4/28/2025 3:21 PM, Richard Heathfield wrote:A Turing Machine can't compute incomputable functions. That's what 'incomputable' means. Incomputable functions exist. The Halting Problem is one such. If you agree with this, we're done. What a lot of fuss over nothing!On 28/04/2025 21:03, olcott wrote:Computing the actual behavior the direct executionOn 4/28/2025 2:58 PM, dbush wrote:>
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>>Category error. The halting function below is fully defined, and this mapping is not computable *as you have explicitly admitted*.>
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Neither is the square root of an actual onion computable.
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Turing Computable Functions are required to apply finite
string transformations to their inputs. The function defined
below ignores that requirement PROVING THAT IT IS INCORRECT.
No, it proves that you agree that it's not a computable function. QED.
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of any input is ALWAYS IMPOSSIBLE.
No halt decider can ever directly see the actualHalt deciders are not required to execute code. There are other ways to analyse a program than just to run it. But hey! Picky. Let's quit while we're ahead.
behavior of any directly executed input.
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