By Juan Uriagereka
It follows from (1) and (2) that functional projections which have a lexical specifier may be barriers, whereas functional projections specified by an empty categor y may not. 3 Finally, I will assume (contrary to Chomsky (1986b) but in line with several others) that IP gan be a barrier. This is of course the null hypothesis, but it is not just conceptually pleasing. Da ta li ke (3) demonstrate that, as a matter of fact, IP shows barrier effects: