Authoritative account of the development of Boole's ideas in logic and probability theory ranges from The Mathematical Analysis of Logic to the end of his career. The Laws of Thought formed the most systematic statement of Boole's theories; this volume contains incomplete studies intended for a follow-up volume. 1952 edition.
It took me probably two-years to get through the whole book; as it is enriched with complex mathematical equations (some take more than two pages) to engender adequate understandings of “Probability” then follows “Logic”—It is cardinal (to which) to recognise the directional process, in order to fathom his portrayal of “Thoughts” as omnipotent, and dismembering what cannot be minified into an equation (=derogation). Also, he is a not-so-captivating writer.