Right Roof Constraint
SYNTAX: condition on rightward movement first formulated by Ross (1967:185):
(i) In all rules whose structural index is of the form ... A Y, and whose structural change specifies that A is to be adjoined to the right of Y, A must command Y.This condition captures the fact that rightward movement is upward bounded, as the following contrast (adapted from Ross 1967:166) shows. The PP cannot leave its clause:
(ii) [That [a review ti ] came out yesterday [of this article]i ] is catastrophic (iii) *[That [a review ti ] came out yesterday] is catastrophic [of this article]iThe notion of 'command' in (i) is not as strict as c-command: it goes up to the first S. The name - Right Roof Constraint - is due to Soames & Perlmutter (1979).
|LIT.||Ross, J.R. (1967)|
Soames, S. & D.M. Perlmutter (1979)