Question: Undecidable Consider the following languages: HALT = left { left | text { Turing Machine M stops ( either accept or
Undecidable
Consider the following languages:
HALTleftlefttextTuring Machine M stops either accept or reject on input wrightright
and
StopsforallleftMtextis a Turing Machine that always stops on any inputright
Show that Stopsforall
is Turingrecognizable
Show that
is undecidable by using a reduction from HALT
Show that Stopsforall
is undecidable by using a reduction from HALT
i need direct answer
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