Question: 6. Let X DFA = { | M is a DFA and L(M) contains at w as a substring} (If w=abba, L(M) could contain a

6. Let X DFA = { | M is a DFA and L(M) contains at w as a substring} (If w=abba, L(M) could contain a string such as cabbac or bbbabba .). Show that X DFA is decidable

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