The book presents a compelling argument for a unified theory of number that integrates semantics, syntax, and morphology, essential for understanding Universal Grammar. Through a detailed analysis of unique data, it demonstrates that a single feature set influences both semantic and morphological number, with syntax serving as the link. Central to the discussion is an innovative examination of Kiowa, a North American language noted for its distinctive noun classification and intricate agreement morphology, highlighting the complexity of number in linguistic structures.
