input: Background: Along the same lines, co-NP is the class containing the complement problems (i.e. problems with the yes/no answers reversed) of NP problems. It is believed that NP is not equal to co-NP; however, it has not yet been proven. It has been shown that if these two complexity classes are not equal then P is not equal to NP.
  Question: What implication can be derived for P and NP if P and co-NP are established to be unequal?
  Answer:<extra_id_0>.
output: <extra_id_0> P is not equal to NP<extra_id_1>