Charles S. Peirce 
Mathematical Philosophy [PDF ebook] 

I-XXX – 1 Logic of History (691) – 2 [Parts of Carnegie Application] (L 75) – 3 Fermatian Inference and De Morgan’s Syllogism of Transposed Quantity – 4 Logico-Mathematical Glosses (812) – 5 Qualitative Logic: Preface; The Modus Ponens; The Logical Algebra of Boole (736) – 6 Meaning (Pragmatism) (622) – 7 Abstracts of Eight Lectures [Topological Basis of Philosophy of Continuity] (942) – 8 Lectures on Pragmatism, Lecture II (302, 303) – 9 Types of Reasoning (441) – 10 Reason’s Conscience; A Practical Treatise on the Theory of Discovery Wherein Logic Is Conceived as Semeiotic (parts of six notebooks in 693) – 11 An Appraisal of the Faculty of Reasoning (616, 617) – 12 [Necessary Reasoning] (760) – 13 Of the Place among the Sciences of Philosophy and of each Branch of it (from 328) – 14 ????? ???????? (517) – 15 On Quantity with Special Reference to Collectional and Mathematical Infinity (15) – 16 ?. Sketch of Dichotomic Mathematics (4) – B. On the Number of Dichotomous Divisions; a Problem in Permutations (74) – 17 The Categories (717) – 18 (PAP) (293) – 19 Detached Ideas Continued and the Dispute Between Nominalists and Realists (439) – 20 [The Problem of Map Coloring] (154) – 21 How to Reason: A Critick of Arguments (397) – 22 On Physical Geometry (257) – 23 Methods of Reasoning (748) – 24 Sketch of a New Philosophy (928) – 25 [Conceptions of Modern Mathematics] (from 950) – Key to Greek Terms – Index of ?ames – Subject Index