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: 
  module MonadTrans = 
      type Lift = Lift with
          static member inline instance (Lift, _:OptionT<'m_a>) = OptionT << (liftM Some)       :'ma -> OptionT<'m_a>
          static member inline instance (Lift, _: ListT<'m_a> ) = ListT << (liftM List.singleton):'ma ->  ListT<'m_a> 
          static member inline instance (Lift, _: SeqT<'m_a> ) = SeqT << (liftM Seq.singleton):'ma ->  SeqT<'m_a> 
  
      let inline internal lift (x:'ma) = Inline.instance Lift x
  
  
negative.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' Seq.empty)
      static member inline instance (MonadPlus.Mplus, SeqT x, _) = fun (SeqT y) -> SeqT <| do'() {
          let! a = x
          let! b = y
          return (Seq.append a b)}
  
  
  
  