title: I have been trying to declare a base implementation in an interface using the its own property but its not working
body: <pre><code>public interface ITutorial
  {
      void SetTutorial()
      {
          if (!isTutorial)
          {
              isTutorial = true;
          }
      }
  
      bool isTutorial { get; set;}
  }
  </code></pre>
  <p>I expected isTutorial to return true after calling SetTutorial, but it returns false. How do I do this?</p>