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The extended projection principle (EPP) is a linguistic hypothesis about subjects.It was proposed by Noam Chomsky as an addendum to the projection principle. [1] The basic idea of the EPP is that clauses must contain a noun phrase or determiner phrase in the subject position (i.e. in the specifier of a tense phrase or inflectional phrase or in the specifier of a verb phrase in languages in ...
The Extended Projection Principle (EPP) refers to the highest Tense Phrase containing a subject. [6] Before the EPP can be satisfied, you must ensure that LOS is satisfied. Once all of the projection principles of LOS are satisfied, EPP is activated when there is movement from one part of the tree to another.
The "EPP" notation stands for "extended projection principle" feature, NOM stands for "nominative case".) Tense first merges with a V-projection, and the output then combines the DP subject the girl, which, in some sense, merges twice: once within the V-projection, and once within the T-projection. (See discussion of Move below.)
The projection principle requires that lexical properties — in particular argument structure properties such as thematic roles — be "projected" onto syntactic structures. Together with Locality of Selection, which forces lexical properties to be projected within a local projection (as defined by X-bar theory [ 1 ] : 149 ), the projection ...
Extended Projection Principle states that all clauses must contain a DP subject and Case Theory states that all DP's must check for Case in the complement or specifier position. A theta role is not assigned to the subject position because the subject is underlyingly in the object position during theta role assignment (which happens in the d ...
The extended projection principle (EPP) requires that all clauses have a subject.A consequence of the EPP is that clauses that lack an overt subject must necessarily have an "invisible" or "covert" subject; with non-finite clauses this covert subject is PRO.
The theta-criterion (also named θ-criterion) is a constraint on x-bar theory that was first proposed by Noam Chomsky () as a rule within the system of principles of the government and binding theory, called theta-theory (θ-theory).
X +max is the maximal projection; the lexical category cannot project to any further point in the tree; X +min is the minimal projection, and corresponds to the lexical item without any of its associated projects (if any) X-max,-min lies between minimal and maximal projection( this corresponds to the intermediate projection level in X-bar Theory)