Abstract
Since our exhibition of the equivalence of complexity classes, we have met that they are still not giving correct and coherent solution for problems known as unsolvable or NP-complete by Cook-Levin theorem “P versus NP”, in contrary, in this work we present the proof of nonequivalent relation between polynomial and non-polynomial classes and show that NP-complete problem cannot be approximated or solved on a hypothetical computational device within the proof by contradiction



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