final-hints(oldexam)

final-hints(oldexam) - {ww| w any string over {0,1)*} is a...

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Q1b: Yes, concatenation of two regular languages. Q2b: Equivalent (not equal) to complement of A_TM Q2d: RE (Turing recognizable) Q5: Yes. Remember i-j mod 5 in the states. Q8: Use the construction used in class to show that the complement of
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Unformatted text preview: {ww| w any string over {0,1)*} is a CFL. Q10: Note that L(M_1) = L(M_2) iff L(M_1) is a subset of L(M_2) and vice versa. Q11: Reduce to E_TM...
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