using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var invoker = new Invoker<Obj>();

        invoker.Test(new Obj(), new Obj());    

        invoker.Test2(new Obj(), new Obj()); 

    }

}

​

public class Invoker<T> where T: class

{

   public bool Test(T obj, T obj2)

   {      

      return obj.Equals(obj2);

   }

  public bool Test2(T obj, T obj2)

   {      

      return ((dynamic)obj).Equals(obj2);

   }

}

​

public class Obj

{

    public bool Equals(Obj obj)

    {

        Console.WriteLine("T.Equals");

        return true;

    }       

​

    public override bool Equals(object obj)

    {

        Console.WriteLine("object.Equals");

        return true;

    }

}

​

​