 Research into language acquisition falls squarely within the psychology of language; see the entry on  language and innateness.  In this section we do not aim to deal in detail with any of the voluminous literature on psychological or computational experiments bearing on language acquisition, or with any of the empirical study of language acquisition by developmental linguists, or the ‘stimulus poverty’ argument for the existence of innate knowledge about linguistic structure (Pullum and Scholz 2002). Our goals are merely to define the issue of linguistic nativism, set it in context, and draw morals for our three approaches from some of the mathematical work on inductive language learning.