Since its publication in 1989, David Sanford's If P Then Q has become one of the most widely respected works in the field of conditionals. This new edition includes three new chapters, thus updating the book to take into account developments in the

This new edition includes three new chapters, updating the book to take into account developments in the field over the past fifteen years.

A Spiral Workbook for Discrete Mathematics covers the standard topics in a sophomore-level course in discrete mathematics: logic, sets, proof techniques, basic number theory, functions,relations, and elementary combinatorics, with an emphasis on motivation. The text explains and claries the unwritten conventions in mathematics, and guides the students through a detailed discussion on how a proof is revised from its draft to a nal polished form. Hands-on exercises help students understand a concept soon after learning it. The text adopts a spiral approach: many topics are revisited multiple times, sometimes from a dierent perspective or at a higher level of complexity, in order to slowly develop the student's problem-solving and writing skills.

Math in Society is a survey of contemporary mathematical topics, appropriate for a college-level topics course for liberal arts major, or as a general quantitative reasoning course.This book is an open textbook; it can be read free online at http://www.opentextbookstore.com/mathinsociety/. Editable versions of the chapters are available as well.

Note: This is a custom edition of Levin's full Discrete Mathematics text, arranged specifically for use in a discrete math course for future elementary and middle school teachers. (It is NOT a new and updated edition of the main text.)This gentle introduction to discrete mathematics is written for first and second year math majors, especially those who intend to teach. The text began as a set of lecture notes for the discrete mathematics course at the University of Northern Colorado. This course serves both as an introduction to topics in discrete math and as the "introduction to proof" course for math majors. The course is usually taught with a large amount of student inquiry, and this text is written to help facilitate this.Four main topics are covered: counting, sequences, logic, and graph theory. Along the way proofs are introduced, including proofs by contradiction, proofs by induction, and combinatorial proofs.While there are many fine discrete math textbooks available, this text has the following advantages: - It is written to be used in an inquiry rich course.- It is written to be used in a course for future math teachers.- It is open source, with low cost print editions and free electronic editions.

Conditional sentences are among the most intriguing and puzzling features of language: analysis of their meaning and function has important implications for, and uses in, many areas of philosophy. Jonathan Bennett, one of the world's leading experts, distils many years' work and teaching into this Philosophical Guide to Conditionals, the fullest and most authoritative treatment of the subject. The literature on conditionals is difficult - needlessly so. Bennett's treatment is meticulously careful and luminously clear. He presents and evaluates in detail various approaches to the understanding of 'indicative' conditionals (like 'If Shakespeare didn't write Hamlet, some aristocrat did') and 'subjunctive' conditionals (like 'If rabbits had not been deliberately introduced into New Zealand, there would be none there today'); and he offers his own view, which will be recognized as a major original contribution to the subject. Journeying through this intellectual territory brings one into contact with the metaphysics of possible worlds, probability and belief-change, probability and logic, the pragmatics of conversation, determinism, ambiguity, vagueness, the law of excluded middle, facts versus events, and more. One might perhaps learn more philosophy from a thorough study of conditionals than from any other kind of work. Bennett's Guide is an ideal introduction for undergraduates with a philosophical grounding, and will also be a rich source of illumination and stimulation for graduate students and professional philosophers.