Question: Show that for | sum | = 1 , the Post correspondence problem is decidable, that is , there is an algorithm that can decide

Show that for |sum|=1, the Post correspondence problem is decidable, that is, there is an
algorithm that can decide whether or not (A;B) has a PC solution for any given (A;B) on a
single-letter alphabet.
Show that for | sum | = 1 , the Post

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