A FORTIORI LOGIC: INNOVATIONS, HISTORY AND ASSESSMENTS, by Avi Sion, is a wide-ranging and in-depth study of a fortiori reasoning, comprising a great many new theoretical insights into such argument, a history of its use and discussion from antiquity to the present day, and critical analyses of the main attempts at its elucidation. Its purpose is nothing less than to lay the foundations for a new branch of logic, and greatly develop it; and thus to once and for all dispel the many fallacious ideas circulating regarding the nature of a fortiori reasoning.

This concise text treats logic as a tool, “generated so that half the work involved in thinking is done for you by somebody else (the rules and laws of the logic).” Gabbay explains in a clear and careful manner how formal features of, and formal relations between, ordinary declarative sentences are captured by the systems of propositional and predicate logic.

Economic activity imposes increasing costs on the global environment. The lack of progress being made in environmental management is often not as much a question of economics, technology or even of interest, as it is of perception, assumptions and how one approaches problems. Green Logic seeks to highlight the key questions regarding entrepreneurship and sustainability in terms of motivation, government intervention and ethics. Written by the highly regarded author of Managing World Economic Change, this important and accessible new book aims to examine how "Green Logic" works, how it differs from other logics and how green thinking can be targeted in order to create environmentally responsible businesses in an era of rapid change. Key questions addressed in depth include:What are the minimal ethical principles to guide environmental living and working? What motives and obstacles characterise ecopreneurship? What principles of creativity and entrepreneurship can be used as tools? In short, what does it really take to motivate entrepreneurs to design and start up green businesses? Green Logic is suitable for both business and academic audiences and significantly pushes forward the debate on environmental responsibility.

Understand Logic is a comprehensive introduction to this fascinating though sometimes challenging subject. As well as looking at logic in theoretical terms the book considers its everyday uses and demonstrates how it has genuine practical applications. It will take you step by step through the most difficult concepts and is packed with exercises to help you consolidate your learning at every stage. Covering everything from syllogistic logic to logical paradoxes and even looking at logic in Alice in Wonderland, this is the only guide you will ever need.