This book examines three connected aspects of Frege s logicism: the differences between Frege s and Dedekind s interpretation of the term logic and related terms andreflects on Frege s notion of function, comparing its interpretation and the role it played in Frege s and Lagrange s foundational programs. It concludes with an examination of the notion of arbitrary function, taking into account Frege s, Ramsey s and Russell s view on the subject. Composed of three chapters, this book sheds light on important aspects of Frege s logicism. The first chapter explains how, although he shares Frege s...