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Ellipsis and movement

Some empirical arguments in favor of the PF approach to head movement will be suggested by criticizing and revising some recent work proposed by Lasnik (1995, 1999, 2001) and Boeckx and Stjepanovic' (2001). The central idea argued for in this paper is that whereas XP-movement is syntactically driven to satisfy the Extended Projection Principle, X0-movement is a pure PF process. On the basis of the idea above, an alternative approach to pseudo-gapping and sluicing constructions will be suggested by introducing the notion of focus into the system. Finally, it will be demonstrated that ellipsis provides an alternative to head raising if and only if focus is involved in Phonetic Form (PF).