const bool a = true;
            const bool b = false;



            bool logsoucet;
            bool logsoucin;
            bool neglogsoucin;
            bool exclusivor;


            logsoucet = a || b;
            logsoucin = a && b;
            neglogsoucin = !(a && b);
            exclusivor = a ^ b;


            Console.WriteLine("{0} or {1} = {2}", a, b, logsoucet);
            Console.WriteLine("{0} and {1} = {2}", a, b, logsoucin);
            Console.WriteLine("{0} nand {1} = {2}", a, b, neglogsoucin);
            Console.WriteLine("{0} xor {1} = {2}", a, b, exclusivor);
            Console.ReadKey();