"Inherent properties" [...]. In order for rules of agreement to assign the appropriate categories to the agreeing words, they must obviously be able to have access to the corresponding categories in the words these agree with, and thus the inherent properties of the head element are as relevant to such a process as the assigned properties of the agreeing item. If adjectives are to agree with their nouns, that is, the (syntactic) rule of agreement must have access to the features of case, gender, number, etc., on which the agreement is based.
- Anderson (2004a), Pag. 231