see definition of in tractably see definition of intractable see definition of intractable see definition of intractable see definition of in tractable see definition of in-tractableness see definition of intractableness see definition of in tractability see definition of intractableness see definition of in-tractable see definition of in tractableness see definition of intractable /intransigent see definition of intractable see definition of in tractable see definition of intractable see definition of intractableness see definition of intractableness