Oh, so you mean like, supposing that NPI exists, an NPI problem? https://en.wikipedia.org/wiki/NP-intermediate https://en.wikipedia.org/wiki/NP-intermediate >

Oh, so you mean like, supposing that NPI exists, an NPI problem? https://en.wikipedia.org/wiki/NP-intermediate https://en.wikipedia.org/wiki/NP-intermediate > There are harder problems in NP That is an unresolved question. It might turn out that every problem in NP is equally hard. (Up to a polynomial translation cost.)