the P vs NP problem attracts a lot of attention, not all of it desirable, for a wide variety of reasons. there are many P=NP claims eg on this widely cited list maintained by mathematician Woegeorgi, P vs NP page. also, intermittently there are hot questions on SE sites related to P vs NP (eg recently ,) below, & there is even a
p-vs-np tag on both cs.se (p-vs-np) & tcs.se sites. the following is intended somewhat as a reference question.
what are the basic/typical/common mistakes in P=NP claims?