Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician. He is understood by many to be the father of analytic philosophy, concentrating on the philosophy of language and mathematics. P. Long is the author of Posthumous Writings, published by Wiley.

• Translators' Preface VI History of the Frege Nachlaß and the Basis for this Edition IXGottlob Frege, Posthumous Writings 1Logic 9Boole's logical Calculus and the Concept-script 47Boole's logical Formula-language and my Concept-script (Dialogue with Pünjer on Existence] 53|Draft towards a Review of Cantor's Gesammelte Abhandlungen zur Lehre vom Transfiniten 68On the Concept of Number 72On Concept and Object 87Comments on Sense and Meaning! 118Logic 126The Argument for my stricter Canons of Definition Logical Defects in Mathematics 152On Euclidean Geometry 167(Frege's Notes on Hilbert's 'Grundlagen der Geometrie'] 170117 Key Sentences on Logic] 174On Schoenfliess: Die Logischen Paradoxien der Mengeniehre 176What may I regard as the Result of my Work? 184Introduction to Logic 185A brief Survey of my logical Doctrines 197Logic in Mathematics 203My basic logical Insights 251Notes for Ludwig Darmstaedterl 253Logical Generality 258Diary Entries on the Concept of Number] 263Number 265Sources of Knowledge of Mathematics and the mathematical natural Sciences 267Numbers and Arithmetic 275A new Attempt at a Foundation for Arithmetic 278Index 282