The Return of Rationality: A Closed System of Propositional Logic

In the works for nine years, during which success was NOT a foregone conclusion, has come: 1) the game-changing discovery of the first-ever closed system of propositional logic in the form of natural deduction that is, moreover, fully reliable and user-friendly and 2) a book written around it: The Return of Rationality: A Closed System of Propositional Logic (RoR) by Steven A. Stegeman, Ph.D. The book also includes broader philosophical and social commentary that speaks to why humanity finds itself in such a rut with respect to logical analysis and critical thinking, of which there is an undeniable dearth, moreover, even among ostensibly well-educated people.The RoR can be used as a primary text or course textbook in high school, college, and even graduate school or for profitable independent study. An accompanying “Learners’ Edition” of the RoR that does not have an “Answer Key” is also available by request (information provided at SpheresPub.com). The edition for sale here doubles as a teacher’s edition while the “Learners’ Edition” can be used as a student edition. Independent learners could use either, depending on what they want to accomplish. The bottom line is that the system in the RoR affords everyone the chance to learn how to think more logically with a fully reliable, stable system of propositional logic in the form of natural deduction. Read more