anchor.diff:      static member inline instance (MonadPlus.Mplus, OptionT x, _) = fun (OptionT y) -> OptionT <| do'() {
               let! maybe_value = x
               return! match maybe_value with Some value -> x | _ -> y}
  +
   
   type ListT<'Ma> = ListT of 'Ma
   
  
positive.code:         fun (k: 'a -> SeqT<'mb>) -> 
              (SeqT (x >>= SeqT.mapM(SeqT.run << k) >>= (Seq.concat >> return'))) :SeqT<'mb>
  
      static member inline instance (MonadPlus.Mzero, _:SeqT<_>) = fun ()       -> SeqT (return' [])
      static member inline instance (MonadPlus.Mplus, SeqT x, _) = fun (SeqT y) -> SeqT <| do'() {
          let! a = x
          let! b = y
          return (a @ b)}
  
  
  
  
negative.code:     type LiftAsync = LiftAsync with  
          static member inline instance (LiftAsync, _:OptionT<'U>) = fun (x :Async<'a>) -> lift (Inline.instance LiftAsync x)
          static member inline instance (LiftAsync, _:ListT< 'U> ) = fun (x :Async<'a>) -> lift (Inline.instance LiftAsync x)
          static member inline instance (LiftAsync, _:SeqT< 'U>  ) = fun (x :Async<'a>) -> lift (Inline.instance LiftAsync x)
          static member        instance (LiftAsync, _:Async<'a>  ) = fun (x :Async<'a>) -> x
  
      let inline internal liftAsync (x: Async<'a>) = Inline.instance LiftAsync x
  