anchor.diff:                         | _ -> false) // '_' is a wildcard pattern that matches anything.
                                        // This handles the "or else" case.
   
  -    open System
  -
       /// You can also use the shorthand function construct for pattern matching, 
       /// which is useful when you're writing functions which make use of Partial Application.
       let private parseHelper f = f >> function
  
positive.code: 
      // Next, add a handler for this new event.
      eventForDelegateType.Publish.AddHandler(
          EventHandler(fun _ _ -> printfn "this is handler was added with Publish.AddHandler"))
  
      // Next, trigger this event (note that sender argument should be set).
      eventForDelegateType.Trigger(null, EventArgs.Empty)
  
negative.code:     let tuple2 = (1, "fred", 3.1415)
  
      printfn "tuple1: %A\ttuple2: %A" tuple1 tuple2
      
      /// A simple tuple of integers with a type annotation.
      /// Type annotations for tuples use the * symbol to separate elements
      let tuple3: int * int = (5, 9)
  
      /// Tuples are normally objects, but they can also be represented as structs.
      ///
  