1998-02-27Z2011-03-11T08:53:53Zhttp://cogprints.org/id/eprint/416This item is in the repository with the URL: http://cogprints.org/id/eprint/4161998-02-27ZAscribing Mental Qualities to MachinesAscribing mental qualities like beliefs, intentions and wants to a machine is sometimes correct if done conservatively and is sometimes necessary to express what is known about its state. We propose some new definitional tools for this: definitions relative to an approximate theory and second order structural definitions. John McCarthy