c# crazyness

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    static class Ext
    {
        public static bool Greater0(this int a)
        {
            return a > 0;
        }
    }
    class Program
    {

        class Hugo {
            public Hugo() { }
            public int value = 0;
        }


        static void Main(string[] args)

        {
            Hugo nullHugo = null;

            var what1 = nullHugo?.value;
            var what2 = what1?.GetHashCode();
            var what3 = nullHugo?.value > 0;
            var what4 = what1?.Greater0();
            Console.WriteLine(what1 > 0 || what1 <= 0);
        }
    }
}