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Questions about the hardest problems in NP, i.e. of those that can be solved in polynomial time by nondeterministic Turing machines.

2 votes
1 answer
190 views

Is SAT a single language or a union of languages?

I know that a language is in NP if a Turing machine can decide the language of its checking relation $\{\text{boolean formula }\#\text{ truth assignment | truth assignment is correct}\}$ in polynomial …