Let B be the language defined as follows: B = {www we {a, b}*} Suppose B is a regular language. Let p be the pumping length given by the pumping lemma for B Then, by the pumping lemma, for any string s, "If s e B and Is| 2 p, then there are 3 strings x, y, z such that s = xyz, xyl s p. lyl > 0, and xy'z e B for all i z 0." Which of the following strings s makes the quoted if-then statement above to be FALSE? O aPbaPbapb O a"(ab) (ba)Pb" O aPbbaPbba bb O b'ab'ab'a O ababab

Computer Networking: A Top-Down Approach (7th Edition)
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Let B be the language defined as follows:
B = [ www | we {a, b}* }
Suppose B is a regular language. Let p be the pumping length given by the pumping lemma for B.
Then, by the pumping lemma, for any string s.
"If se B and Is| 2 p. then there are 3 strings x, y, z such that
s = xyz, xyl s p. lyl 0, and xy'z e B for all i z 0."
Which of the following strings s makes the quoted if-then statement above to be FALSE?
aPbaPbapb
O a"(ab)P(ba)Pb"
ap1bap1bap+1b
O aPbbaPbba bb
O b'ab'abPa
O ababab
Transcribed Image Text:Let B be the language defined as follows: B = [ www | we {a, b}* } Suppose B is a regular language. Let p be the pumping length given by the pumping lemma for B. Then, by the pumping lemma, for any string s. "If se B and Is| 2 p. then there are 3 strings x, y, z such that s = xyz, xyl s p. lyl 0, and xy'z e B for all i z 0." Which of the following strings s makes the quoted if-then statement above to be FALSE? aPbaPbapb O a"(ab)P(ba)Pb" ap1bap1bap+1b O aPbbaPbba bb O b'ab'abPa O ababab
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