%0 Journal Article %T On a Logical Model of Combinatorial Problems %A Anatoly D. Plotnikov %J Open Access Library Journal %V 2 %N 5 %P 1-6 %@ 2333-9721 %D 2015 %I Open Access Library %R 10.4236/oalib.1101479 %X The paper proposes a logical model of combinatorial problems; it also gives an example of a problem of the class NP that cannot be solved in polynomial time on the dimension of the problem. %K Logical Model %K Combinatorial Problem %K Class P %K Class NP %U http://www.oalib.com/paper/3144856