SYNTAX: wellformedness condition on chains, which states that every chain (a1,...,an) must contain exactly one Theta-marked position and exactly one Case-marked position. In A-chains a1 is Case-marked and an is Theta-marked, while in A'-chains the lowest variable A'-bound by the operator is Case-marked, and may either be Theta-marked, or A-bind a Theta-marked position in the chain. This condition restates the case filter (or the visibility condition) and the
Theta criterion in terms of chains.
|LIT.||Chomsky, N. (1986b)|
Chomsky, N. (1986a)
Chomsky, N. (1981)