Attempt to Refute the Halting Problem's Refutation
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Date: 08/12/04
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Date: Thu, 12 Aug 2004 02:51:52 GMT
OK, before we get started with the meat of this, we need to agree on
some definitions, so here we go:
Definition: The "Halting Problem" is a problem which takes two inputs
(machine,input), where "machine" is a description of a Turing Machine
and "input" is the input to be supplied to that machine, and you are
asked if "machine" halts when run with input "input". A program
"correctly solves the halting problem" if (and only if) it correctly
determines the answer to this question for all inputs (all
<machine,input> pairs).
Notice that I simply said "determines the answer" so that we're not
restricted on how it reports (or doesn't report) the answer.
I believe you've acknowledged this as what Turing proved before, so
let me know if we can use this as a fact: No Turing Machine that
returns its answer can correctly solve the halting problem.
If you don't want to take that as proven fact, that's fine, we can
work around it, but let me know.
Your turn: Let me know if that definition is OK, and whether or not
to accept the result about machines that return the answer.
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