Question: Consider the following decision problems: Halting problem (HP) Input: A Turing machine M and a string w. Question: Does M reach a halting configuration on

Consider the following decision problems: Halting problem (HP) Input: A Turing

Consider the following decision problems: Halting problem (HP) Input: A Turing machine M and a string w. Question: Does M reach a halting configuration on input w ? abc-halting problem (abc-HP) Input: A Turing machine M. Question: Does M reach a halting configuration on input abc? Show that the abc-halting problem is undecidable, by reducing HP to abc-HP

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