Definiteness without determiners
The paper investigates conditions for the bare occurrence of noun phrases in the topic position of specificational copula clauses. It is shown that this is a predicate position for non-referential NPs. Specificational clauses in German are special because of the unusual alignment of the predicative position and the topic position. I show that the condition for the bare occurrence of NPs in this position is that the head noun denotes a functional concept. According to the theory of concept types by Löbner (2011), nouns denoting functional concepts are inherently relational and unique. I argue that relationality ensures the anchoring of bare NPs in the discourse via an anaphoric link to a bridging antecedent in previous discourse and qualifies them for being a topic in the sense of discourse-familiarity. The inherent uniqueness of functional concepts is the key to understanding why nouns denoting such concepts can occur bare without a definite article: Since the article in predicate NPs merely conveys uniqueness without referentiality as argued by Coppock & Beaver (2015) and functional nouns in predicate position are unique and non-referential, the definite article is redundant and can be omitted.